WO2010013301A1 - Content reproduction device and method - Google Patents
Content reproduction device and method Download PDFInfo
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- WO2010013301A1 WO2010013301A1 PCT/JP2008/063514 JP2008063514W WO2010013301A1 WO 2010013301 A1 WO2010013301 A1 WO 2010013301A1 JP 2008063514 W JP2008063514 W JP 2008063514W WO 2010013301 A1 WO2010013301 A1 WO 2010013301A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
- H04S7/30—Control circuits for electronic adaptation of the sound field
- H04S7/302—Electronic adaptation of stereophonic sound system to listener position or orientation
Definitions
- the present invention relates to a content reproduction device for reproducing a content signal including, for example, an image signal and an audio signal read by an optical disc player from, for example, a flat display with a speaker, an AV (Audio Visual) system, a television device, and the like. It relates to the technical field of methods.
- Patent Document 1 discloses a sound reproduction method that improves the sense of reality by combining sound direction localization that reproduces a sense of perspective with directional sound image localization by linking volume adjustment processing and frequency signal processing. Is described.
- Patent Document 2 describes a multi-channel audio reproducing apparatus that automatically adjusts the characteristics of reproduced sound without connecting a microphone to the apparatus or arranging it at a predetermined position.
- Patent Documents 1 and 2 for example, a method in which the content of the content is transmitted with the highest presence or the most content in a seat near the center in a movie theater equipped with a huge screen and a high-performance surround system.
- the content is produced so that it can be viewed on the Internet. That is, there are many contents that have not been created so as to be suitable for viewing at home. For this reason, no matter how the image output or audio output is evolved, viewing using consumer devices in a general household may not be able to benefit from such evolution, or on the other hand, the sense of reality will be reduced. There is a technical problem that it may even happen.
- the present invention has been made in view of the above-mentioned problems, for example, and content reproduction that makes it possible to reproduce realistic content even when viewing at a general home using a consumer device or the like. It is an object to provide an apparatus and a method.
- a content reproduction apparatus is provided with a display that is supplied with an image signal and outputs an image according to the supplied image signal, and a distance from the display on both sides of the display.
- a pair of speakers mounted in a fixed manner and supplied with an audio signal and outputting audio in accordance with the supplied audio signal; distance specifying means for specifying a distance from a viewer to the display; and the audio
- the distance between the speakers between the pair of speakers can be artificially increased / decreased on hearing by the viewer, and an audio signal for supplying the signal-processed audio signal to the pair of speakers
- the horizontal width of the image displayed on the processing means and the display is Wsd, and the image is displayed from the ideal viewing position recommended for the horizontal width Wsd.
- a content signal including an image signal and an audio signal read out from a recording medium such as a DVD or an optical disk by a media reproduction apparatus including a pickup unit is received. Supplied.
- a television set, a flat display with a speaker, or a content playback device such as an AV system outputs a supplied image signal by a display and performs signal processing on a supplied audio signal. , Output by speaker.
- the video signal and the audio signal constituting the content signal are sequentially input to the content reproduction apparatus.
- the display performs image output according to the supplied image signal. That is, it is displayed on the screen of its own in the direct view type or on a screen separately provided in the projection type.
- a pair of speakers are attached to both sides of the display, and a fixed distance from the display is fixed. Simultaneously with the image output of the image signal, the supplied audio signal is output by the pair of speakers.
- the pair of speakers may be configured as a part of the normal content reproduction apparatus. On the other hand, it may be installed on both sides of the content reproduction apparatus so that it is connected to the content reproduction apparatus by wire or wirelessly for communication. Therefore, it is possible for the viewer to further increase the degree of freedom of speaker arrangement.
- the distance specifying means specifies the distance Wdx from the viewer to the display prior to the output of the image by the display and the output of the sound from the speaker or almost simultaneously with the start of the output.
- the viewer may directly input the distance from the viewer's position to the display on a setting screen such as a display.
- a sound signal for measurement for example, pink noise or white noise, is output from each speaker, and the distance Wdx is calculated from the detection result of the measurement signal in the sound collecting means such as a microphone disposed at the viewer's position, that is, You may measure indirectly.
- the distance Wdx from the viewer to the display may be directly measured, or the distances Wsplx and Wsprx from the viewer to the pair of speakers on both sides of the display are first measured.
- the distance Wdx may be calculated from the actual distance Wsp between the speakers, the distance Wsplx, and Wsprx.
- the audio signal processing means including, for example, a processor, a memory, a converter, and the like processes the audio signal supplied from the player, so that the speaker between the pair of speakers is simulated in the sense of hearing by the viewer.
- the distance Wsp ′ can be increased or decreased. In the present invention, as will be described later, such increase / decrease is performed under the control of the control means.
- the audio signal processing means can make the viewer feel the sound spread by synthesizing and reproducing the reverberation sound signal generated in the viewing space and the original input audio signal, for example.
- the audio signal processing means is, for example, a wide processing unit that performs a wide processing on the audio signal, and includes a filter, an adder, and the like, and performs a process of expanding the sound image of the audio signal reproduced by a method called crosstalk cancellation. become.
- audio signal processing is processing that can change the impression that the audio output based on the audio signal gives to the viewer by some method, such as gain increase / decrease processing for each band or predetermined acoustic processing. It is a general term.
- the sound signal processing means performs separate signal processing for each sound signal corresponding to each channel, so that the sound pressure level of the sound output from each speaker, the timing at which the sound is output from each speaker, etc. Make changes to characteristics. For example, when a 2ch audio signal is input, the audio signal processing means executes signal processing for changing characteristics such as output timing and sound pressure for each 2ch channel. Then, the audio signal corresponding to each channel subjected to the signal processing by the audio signal processing means is supplied to the pair of speakers and output separately from each speaker.
- the control means is a control unit including, for example, a processor, a memory, and the like, so that the ratio between the distance from the viewer to the display and the distance between the speakers becomes an encouragement ratio in the professional viewing space, for example, the golden ratio.
- the audio signal processing means is controlled. Specifically, the horizontal width of the image displayed on the display is Wsd, the distance from the ideal viewing position recommended for the horizontal width Wsd to the display is Wdo, the distance specified by the distance specifying means is Wdx, and the speaker Let the distance be Wsp ′.
- control means controls the audio signal processing means so as to increase or decrease the inter-speaker distance Wsp 'so that the value of Wsp' / Wdx approaches the value of Wsd / Wdo.
- control means controls the audio signal processing means so as to increase or decrease the inter-speaker distance Wsp ′ so that the value of Wsp ′ / Wdx matches the value of Wsd / Wdo.
- the control means brings the value of Wsp ′ / Wdx closer to the value of Wsd / Wdo.
- the audio signal processing means may be controlled so as to increase the virtual inter-speaker distance Wsp ′.
- Wsp ′ / Wdx in the actual viewing space is larger than Wsd / Wdo in the professional viewing space
- the value of Wsp ′ / Wdx is made closer to the value of Wsd / Wdo.
- the audio signal processing means may be controlled so as to decrease or not increase or decrease the signal.
- the content playback apparatus of the present invention may further include an image signal processing means.
- the image signal processing means has the same function as the audio signal processing means.
- the image signal is processed by an image signal processing means including a processor, a memory, etc., thereby increasing or decreasing the horizontal width of the image displayed on the display, and further supplying the image signal subjected to signal processing to the display.
- control means performs the image signal processing so that the ratio of the distance from the viewer to the display and the distance between the speakers is an encouraged ratio in a professional viewing space, for example, a golden ratio.
- Control means increases or decreases the horizontal width Wsd of the image displayed on the display so that the value of Wsp ′ / Wdx approaches the value of Wsd / Wdo, as in the method of controlling the audio signal processing means.
- the image signal processing means is controlled so as to make it happen.
- the control means brings the value of Wsp ′ / Wdx closer to the value of Wsd / Wdo.
- the image signal processing means may be controlled so that the lateral width Wsd is not increased or decreased.
- Wsp ′ / Wdx in the actual viewing space is larger than Wsd / Wdo in the professional viewing space
- the width Wsd is made smaller to bring the value of Wsp ′ / Wdx closer to the value of Wsd / Wdo.
- the image signal processing means may be controlled.
- the content reproduction apparatus of the present invention may be a single product such as a television apparatus, and includes a PDP (Plasma Display Panel), an AV amplifier, and a pair of speakers. It may be configured by a combination of products.
- the AV amplifier transmits size information for image output from the PDP through a communication interface such as HDMI (High Definition Multimedia Interface), and a pair of speakers are installed on both sides of the PDP. Therefore, it becomes possible to automatically adjust the problem on the continuity between devices.
- the PDP, the AV amplifier, and the pair of speakers may be physically separated from each other. For example, they may be sold separately, installed at different occasions, and exchanged at different occasions.
- the pair of speakers are attached to both sides of the display so that the distance from the display is fixed.
- a center speaker, a super woofer, a rear speaker, and the like other than the pair of speakers forming the front left and right speakers may be used together with the pair of speakers.
- the audio signal processing means and the control means enable the image so that the ratio between the distance from the viewer to the display in the viewing space and the distance between the speakers becomes the encouragement ratio in the professional viewing space, for example, the golden ratio.
- Output and audio output can be executed. Furthermore, by reproducing an audio signal that improves the sense of breadth for the viewer, it is possible to dynamically reproduce a viewing space with a sense of presence and a surround effect, and to create a sense of beauty through hearing. In addition, it is not necessary for the viewer to have specialized knowledge, and it is possible to experience a high-quality viewing space with powerfulness and presence without complicated operations.
- the present invention which provides a workaround, is very advantageous.
- the distance specifying means calculates the distance to the microphone placed at the viewer's position in the distance measurement mode prior to the display output and the audio output. The distance is measured based on the time until the measurement sound from the pair of speakers is picked up by the microphone.
- the distance specifying means measures the distance to the microphone placed at the viewer's position prior to outputting the image from the display and outputting the sound from the speaker. For example, when a microphone serving as a sound collecting unit is placed at the viewer's position and the content reproduction apparatus is once set to the distance measurement mode, a sound signal for measurement is transmitted from the speaker. Then, the transmitted sound signal for measurement is picked up by the microphone as the sound pickup means. Based on the time until the collected sound signal is picked up by the microphone, the distance from the pair of speakers to the microphone, that is, the distance from the viewer to the pair of speakers on both sides of the display, Wsplx and Wsprx, is measured.
- the distance Wdx is calculated from the actual distance Wsp between the speakers, the distance Wsplx, and Wsprx.
- the distance from the viewer to the display is indirectly measured by measuring the distance from the viewer to each of the pair of speakers.
- the distance specifying means can input distance information from the viewer to the display measured in advance by the measuring means prior to the display output and the audio output.
- the distance is specified as a distance indicated by the input distance information.
- the distance specifying means inputs the distance from the viewer to the display prior to the output of the image by the display and the output of the sound by the speaker.
- the distance information input here is measured in advance by a predetermined measuring means, and distance information indicating the measurement result may be automatically input from the interface.
- the viewer who recognized the distance information which shows the measurement result may input by performing external operations, such as remote control operation.
- the distance specifying unit may prompt the input of the distance information by an external operation by display output or sound output, and the user performs an input operation in response to the prompt.
- the viewer may directly measure the distance with a tape measure and input the measurement result on the setting screen.
- the detection results fluctuate due to ambient noise in an environment where people are likely to enter and exit, such as living rooms. This prevents the problem of being generated.
- the content reproduction apparatus further includes storage means for storing the Wsd / Wdo value in advance, and the control means reads the stored Wsd / Wdo value and reads the read value.
- the audio signal processing means is controlled so as to increase or decrease the inter-speaker distance Wsp ′ so that the value of Wsp ′ / Wdx approaches the value of Wsd / Wdo.
- the incentive ratio between the horizontal width Wsd of the image displayed on the display in the professional viewing space and the distance Wdo from the ideal viewing position to the display recommended for the horizontal width Wsd for example, the golden ratio
- storage means such as a memory.
- the ratio in the storage means is not particularly limited, such as being stored in the form of an arithmetic expression indicating the distance Wsd / distance Wdo or in the form of a lookup table.
- control means reads the value of Wsd / Wdo stored in the storage means, and the speaker distance Wsp ′ is closer to the read Wsd / Wdo value closer to the value of Wsp ′ / Wdx.
- the audio signal processing means is controlled so as to increase or decrease.
- the audio signal processing means is configured to increase the inter-speaker distance Wsp ′ when the value of Wsd / Wdo is greater than Wsp ′ / Wdx. And when the value of Wsd / Wdo is smaller than Wsp ′ / Wdx, the audio signal processing means is controlled so as not to decrease or increase or decrease the inter-speaker distance Wsp ′.
- the control means sets the value of Wsp ′ / Wdx to the value of Wsd / Wdo. Therefore, the audio signal processing means may be controlled so as to increase the virtual speaker distance Wsp ′. Conversely, when Wsp ′ / Wdx in the actual viewing space is larger than Wsd / Wdo in the professional viewing space, the value of Wsp ′ / Wdx is made closer to the value of Wsd / Wdo.
- the audio signal processing means may be controlled so as to decrease or not increase or decrease the signal.
- another content reproduction apparatus of the present invention is provided with a display that is supplied with an image signal and outputs an image according to the supplied image signal, and a distance from the display on both sides of the display.
- a pair of speakers that are attached in a fixed form, that are supplied with audio signals and that output audio according to the supplied audio signals, and a distance that specifies the distance from the viewer to the display or the pair of speakers Generating an image signal for urging the viewer to move in a direction to reduce a difference between the specified distance and the first predetermined distance determined according to a width of the image;
- An image signal generating means for supplying the generated image signal, and an audio signal for urging the viewer to move in a direction to reduce the difference from the first predetermined distance. It generates and and at least one signal generation means of the audio signal generating means for supplying a voice signal said generated.
- an image signal is output by a display, and an audio signal is output by a pair of speakers.
- the distance Wdx from the viewer to the display is specified by the distance specifying means, or the distance Wdx from the viewer to the display is indirectly measured by measuring the distances Wsplx and Wsprx from the viewer to each of the pair of speakers. Measured. Then, the ratio between the distance Wdx specified by the distance measuring means and the horizontal width Wsd of the image displayed on the display is an encouraged ratio in the professional viewing space, for example, the golden ratio or close to the golden ratio.
- the image signal generating means or the audio signal generating means prompts the viewer to move.
- the first predetermined distance Wdx ′ is determined according to the ratio of the first predetermined distance Wdx ′ to the lateral width Wsd being the golden ratio. Then, an image signal or an audio signal is generated by the image signal generation unit or the audio signal generation unit to urge the viewer to move in the direction of reducing the difference between the distance Wdx and the first predetermined distance Wdx ′. Also good. The generated image signal or audio signal prompts the viewer to move.
- an image signal for prompting to move the viewer may be generated, or an audio signal for prompting to move the viewer may be generated by the sound generation unit, or an image may be generated. It may be generated by the sound generation means as well as generated by the generation means.
- the generated image signal or audio signal, or a combination of both image and audio signals prompts the viewer to move to an ideal viewing position, such as a golden ratio.
- the value of Wdx / Wsd becomes the golden ratio. Prompt to move far from the display. Conversely, if the ratio between the distance Wdx and the width Wsd is determined to be larger than the golden ratio, that is, if the distance Wdx is longer than the first predetermined distance Wdx ′, the value of Wdx / Wsd becomes the golden ratio. To move the display closer to the display.
- the image signal generating unit and the audio signal generating unit allow the ratio of the distance Wdx from the viewer to the display in the viewing space and the horizontal width Wsd of the image displayed on the display to be the golden ratio. Output and audio output can be executed. Furthermore, it is possible to make the viewer feel aesthetically through hearing. Moreover, it is not necessary for the viewer to have specialized knowledge, and it is possible to experience a realistic viewing space without complicated operations.
- the environment close to the golden ratio should be achieved within the range that can be achieved even with the size of a consumer display.
- the present invention which makes it possible to realize is very advantageous.
- the distance between the speakers between the pair of speakers can be artificially increased or decreased on hearing by the viewer
- the audio signal processing means for supplying the signal-processed audio signal to the pair of speakers, and the inter-speaker distance is simulated at a second predetermined distance determined according to the distance from the specified viewer to the display.
- the audio signal processing means including a processor, a memory, a converter, etc., for example, processes the audio signal supplied from the player so that the pair of speakers can be simulated in the sense of hearing by the viewer. It is possible to increase or decrease the inter-speaker distance Wsp ′.
- the reverberation sound signal generated in the viewing space and the audio signal are synthesized and reproduced to make the viewer feel the sound spread.
- it is a wide processing unit that performs a wide processing on an audio signal, for example, and includes a filter, an adder, and the like, and performs a process of expanding the sound image of the audio signal reproduced by a method called crosstalk cancellation.
- the control means is a control unit including, for example, a processor, a memory, and the like, and the audio signal processing means is set so that the ratio of the distance Wdx from the viewer to the display and the inter-speaker distance Wsp ′ becomes the golden ratio. To control.
- the second predetermined distance Wsp2 is determined according to the ratio of the distance Wdx from the viewer to the display and the second predetermined distance Wsp2 being the golden ratio. Then, for example, the control means determines that the ratio of the distance Wdx to the speaker distance Wsp ′ is smaller than the golden ratio, that is, if the speaker distance Wsp ′ is greater than the second predetermined distance Wsp2, Wdx / Wsp ′.
- the audio signal processing means is controlled so as to bring the value of close to the golden ratio, that is, so as not to increase or decrease the virtual inter-speaker distance Wsp ′.
- the ratio of the distance Wdx to the speaker distance Wsp ′ is determined to be larger than the golden ratio, that is, when the speaker distance Wsp ′ is smaller than the second predetermined distance Wsp2, the value of Wdx / Wsp ′ is set to the golden ratio.
- the sound signal processing means is controlled so that the distance between the speakers Wsp ′ is increased.
- the audio signal processing means and the control means can be realized such that the ratio of the distance Wdx from the viewer to the display in the viewing space and the inter-speaker distance Wsp ′ becomes the golden ratio. Furthermore, by reproducing an audio signal that improves the sense of breadth for the viewer, it is possible to dynamically reproduce a viewing space with a sense of presence and a surround effect, and to create a sense of beauty through hearing. Moreover, the viewer can automatically adjust the viewing space to the golden ratio without being conscious of the viewer, thereby providing a realistic viewing space.
- a content reproduction method is provided with a display that is supplied with an image signal and outputs an image according to the supplied image signal, and a distance from the display on both sides of the display.
- a content playback method in a content playback apparatus comprising a pair of speakers attached in a fixed manner, to which an audio signal is supplied and that outputs audio in accordance with the supplied audio signal, from a viewer to the display
- the distance identification step for identifying the distance between the pair of speakers can be artificially increased / decreased in the auditory sense of the viewer by signal processing the audio signal and the signal processing is performed.
- Wdo the distance from the ideal viewing position recommended for the width Wsd to the display
- Wdx the specified distance
- Wsp ′ the distance between the speakers
- the value of Wsd / Wdo is A control step of controlling the audio signal processing means so as to increase or decrease the inter-speaker distance Wsp ′ on the side where the value of Wsp ′ / Wdx approaches.
- the ratio of the distance from the viewer to the display in the viewing space and the distance between the speakers by the audio signal processing step and the control step is the recommended ratio in the professional viewing space, for example, golden Image output and audio output can be executed so that the ratio becomes equal. Furthermore, by reproducing an audio signal that improves the sense of breadth for the viewer, it is possible to dynamically reproduce a viewing space with a sense of presence and a surround effect, and to create a sense of beauty through hearing. In addition, it is not necessary for the viewer to have specialized knowledge, and it is possible to experience a high-quality viewing space with powerfulness and presence without complicated operations.
- the content reproduction method of the present invention can also adopt various aspects similar to those of the content reproduction apparatus of the present invention described above.
- another content reproduction method of the present invention supplies a display to which an image signal is supplied and outputs an image corresponding to the supplied image signal, and distances from the display to both sides of the display.
- a content playback method in a content playback apparatus comprising a pair of speakers to which audio signals are supplied and audio output according to the supplied audio signals is attached, wherein the display is received from a viewer Alternatively, the viewer is moved in a direction to reduce the difference between the distance specifying step for specifying the distance to the pair of speakers and the first predetermined distance determined according to the specified distance and the width of the image.
- An image signal generating step for generating an image signal for prompting and supplying the generated image signal, and a difference from the first predetermined distance
- the ratio of the distance Wdx from the viewer to the display in the viewing space and the horizontal width Wsd of the image displayed on the display is golden by the image signal generation unit and the audio signal generation unit. It becomes feasible to become ratio. Furthermore, it is possible to make the viewer feel aesthetically through hearing. Moreover, it is not necessary for the viewer to have specialized knowledge, and it is possible to experience a realistic viewing space without complicated operations.
- the content reproduction apparatus of the present invention includes the audio signal processing means and the control means, while the content reproduction method of the present invention includes the audio signal processing step and the control step.
- Image output and audio output can be executed such that the ratio between the distance from the viewer to the display and the distance between the speakers becomes an encouraged ratio in the professional viewing space, for example, the golden ratio.
- reproducing an audio signal that improves the sense of breadth for the viewer it is possible to dynamically reproduce a viewing space with a sense of presence and a surround effect, and to create a sense of beauty through hearing.
- FIG. 1 is a block diagram showing the configuration of the content reproduction apparatus 1 according to the embodiment.
- a content reproduction apparatus 1 is, for example, a television apparatus, and includes a display 11, a pair of speakers 12a and 12b, a memory 13, a distance specifying unit 14, a control unit 15, an audio signal processing unit 16, and an image signal generation unit 17. And an audio signal generator 18.
- the content playback apparatus 1 first receives a content signal including an image signal and an audio signal read by a player 2 including a pickup unit from a disk 3 such as a DVD during operation.
- a content signal including an image signal and an audio signal read by a player 2 including a pickup unit from a disk 3 such as a DVD during operation.
- the type of the disc 3 is not limited to the number of recording layers, and various types such as a BlueRay disc, HD-DVD, DVD, and CD can be considered.
- the disc 3 has information such as AV contents to be reproduced by the player 2.
- the supplied image signal and audio signal are processed by the content reproduction apparatus 1 and further output to the viewer 5 by the display 11 and the pair of speakers 12a and 12b.
- the pair of speakers 12a and 12b are a front right speaker and a front left speaker. Typically, a right audio signal and a left audio signal for stereo sound are input to these speakers, respectively. Rear speakers and super woofers other than these may be connected, and in this case, 5.1-channel surround sound signals are respectively input to these speakers.
- the memory 13 is an example of the “storage means” according to the present invention, and displays the horizontal width Wsd of the image displayed on the display 11 in the professional viewing space and the ideal viewing position recommended for the horizontal width Wsd.
- An incentive ratio with a distance Wdo up to 11, for example, a golden ratio, that is, a value of Wsd / Wdo is stored in advance. The ratio stored in the memory 13 will be described in detail later with reference to FIG.
- the distance specifying unit 14 is an example of the “distance specifying unit” according to the present invention, and calculates the distance Wdx from the viewer 5 to the display 11 prior to outputting an image from the display 11 and outputting sound from the speakers 12a and 12b. Identify.
- the distance specifying unit 14 outputs a sound signal for measurement, for example, pink noise or white noise, from each of the speakers 12a and 12b, and performs measurement in sound collecting means such as a microphone disposed at the position of the viewer 5.
- the distance Wdx is calculated from the detection result of the signal for use, that is, the distance Wdx from the viewer 5 to the display 11 is indirectly measured. The operation of the distance specifying unit 14 will be described in detail later with reference to FIG.
- the control unit 15 is an example of the “control unit” according to the present invention, and includes, for example, a processor, a memory, and the like.
- control unit 15 sets the horizontal width of the image stored on the display 11 stored in the memory 13, for example, the golden ratio to Wsd / the distance from the ideal viewing position recommended for the horizontal width Wsd to the display 11. Read the value of Wdo. Then, the control unit 15 sets the distance specified by the distance specifying unit 14 as Wdx, and sets the distance between the speakers 12a and 12b as Wsp '.
- the audio signal processing unit 16, the image signal generation unit 17, and the audio signal generation unit 18 are controlled so as to increase or decrease the distance Wsp ′. The operation of the control unit 15 will be described in detail with reference to FIGS.
- the audio signal processing unit 16 is an example of the “audio signal processing means” according to the present invention, and includes, for example, a processor, a memory, a converter, and the like.
- the audio signal processing unit 16 can process the audio signal supplied from the player 2 to increase or decrease the speaker-to-speaker distance Wsp ′ between the pair of speakers 12a and 12b in an auditory sense by the viewer 5.
- the audio signal processing unit 16 is a wide processing unit that performs a wide processing on the audio signal, and includes a filter, an adder, and the like, and performs a process of expanding the sound image of the audio signal reproduced by a method called crosstalk cancellation.
- the audio signal subjected to signal processing is supplied to the pair of speakers 12a and 12b.
- the audio signal processing unit 16 will be described in detail later with reference to FIG.
- the image signal generator 17 is an example of the “image signal generator” according to the present invention.
- the first predetermined distance Wdx ' is determined in accordance with the ratio of the first predetermined distance Wdx' to the lateral width Wsd being the golden ratio.
- the image signal generation unit 17 generates an image signal for prompting the viewer 5 to move in the direction of reducing the difference between the distance Wdx and the first predetermined distance Wdx ′.
- the generated image signal is supplied to the display 11 and output, thereby prompting the viewer 5 to move in the direction of reducing the difference from the first predetermined distance.
- the audio signal generator 18 is an example of the “audio signal generator” according to the present invention. Similar to the image signal generation unit 17, the audio signal generation unit 18 generates an audio signal that prompts the viewer 5 to move in the direction of reducing the difference between the distance Wdx and the first predetermined distance Wdx ′. The generated audio signal is supplied to and output from the pair of speakers 12a and 12b, thereby prompting the viewer 5 to move in a direction that reduces the difference from the first predetermined distance.
- the display 11 is a device that can output an image signal as an image, such as a plasma display, a liquid crystal display, a projector, or a monitor, and is generated by the image signal supplied from the player 11 and the image signal generator 17.
- the image signal is output to the viewer 5 in accordance with the received image signal.
- the pair of speakers 12 a and 12 b outputs the audio signal to the viewer 5 in accordance with the supplied audio signal and the audio signal generated by the audio signal generator 18.
- the ratio of the distance from the viewer to the display in the viewing space and the distance between the speakers can be an encouraged ratio in the professional viewing space, for example, the golden ratio. Furthermore, by reproducing an audio signal that improves the sense of breadth for the viewer, it is possible to dynamically reproduce the viewing space with a sense of presence and surround effect, and to create a sense of beauty through hearing. In addition, it is not necessary for the viewer to have specialized knowledge, and it is possible to experience a high-quality viewing space with powerfulness and presence without complicated operations.
- the present invention is very advantageous.
- FIG. 2 is a plan view showing a professional viewing space according to the embodiment.
- a professional sound mixer 100 uses a professional display device 101 and speakers 102a and 102b to mix AV content.
- a pair of speakers 102 a and 102 b are attached to both sides of the display 101.
- the horizontal width of the image displayed on the display 101 in the professional viewing space is Wsd, and the distance between the sound mixer 100 and the display 101, that is, the ideal viewing position recommended for the horizontal width Wsd is displayed.
- the value of Wsd / Wdo, the golden ratio that normally has aesthetics, is stored in the memory 13 in advance.
- the actual distance Wsp between the speakers 12a and 12b is also stored in the memory 13 in advance.
- the value of Wsd / Wdo and Wsp which are the golden ratio stored in the memory 13 or close to the golden ratio, are read by the control unit 15 and further processed by the control unit 15. This makes it possible to provide a realistic viewing space.
- FIG. 3 is a plan view showing a viewing space when the audio signal processing unit 16 according to the embodiment operates.
- the image signal supplied with the display 11 is output to the viewer 5, and the audio signal supplied with the speakers 12a and 12b is output.
- the pair of speakers 12 a and 12 b are fixed at a distance from the display 11 and are attached to both sides of the display 11.
- the distance specifying unit 14 first measures the distances Wsplx and Wsprx from the viewer 5 to the pair of speakers 12a and 12b on both sides of the display 11, and uses the actual distances Wsp and the distances Wsplx and Wsprx between the speakers 12a and 12b. A distance Wdx is calculated.
- the distance Wdx is calculated from the actual distance Wsp, the distances Wsplx and Wsprx between the speakers 12a and 12b read from the memory 13.
- FIG. 4 is a plan view showing a viewing space when the image signal generation unit 17 and the audio signal generation unit 18 according to the embodiment operate.
- the control unit 15 brings the value of Wsp ′ / Wdx closer to the value of Wsd / Wdo.
- the audio signal processing unit 16 is controlled so as to increase the typical inter-speaker distance Wsp ′.
- the speaker-to-speaker distance Wsp between the pair of speakers 12a and 12b is artificially heard by the viewer 5. 'Increase. That is, the position of the pair of speakers 12a and 12b is moved to 22a and 22b in a simulated manner.
- Wsd / Wdo in the professional viewing space is not greater than Wsp ′ / Wdx in the actual viewing space, viewer 5 is encouraged to bring the value of Wsp ′ / Wdx closer to the value of Wsd / Wdo.
- the image signal generation unit 17 and the audio signal generation unit 18 are controlled so as to prompt the user to move to an ideal viewing position, for example, a position where the golden ratio is achieved.
- the first predetermined distance Wdx ' is calculated in accordance with the ratio of the first predetermined distance Wdx' to the lateral width Wsd being the golden ratio.
- the difference between the distance Wdx and the first predetermined distance Wdx ′ is reduced according to the calculated first predetermined distance Wdx ′.
- the image signal generation unit 17 For example, if the difference between the first predetermined distance Wdx ′ and the distance Wdx is 15 centimeters, the image signal generation unit 17 generates an image signal of, for example, “Please move back 15 centimeters” and the generated image The signal is displayed on the screen by the display 11, and the audio signal generation unit 18 generates an audio signal of, for example, “Please move 15 centimeters backward”, and the generated audio signal is output by the speakers 12a and 12b. The Therefore, the viewer 5 is prompted to move to the position 5a from the display 11 to the first predetermined distance Wdx ', that is, the place where the golden ratio is achieved.
- FIG. 5 is a block diagram showing the audio signal processing unit 16 according to the embodiment.
- the audio signal processing unit 16 includes a clip prevention unit 16a, an effector 16b, a gain control unit 16c, and an addition unit 16d.
- the clip prevention unit 16a is provided with, for example, a clip detection circuit.
- the clip detection circuit detects the clip state of the input audio signal and increases the resistance value of the gain adjustment resistor of the gain control unit 16c.
- the level of the audio signal input to the audio signal processing unit 16 is suppressed automatically. Therefore, distortion of sound output from the pair of speakers 12a and 12b is prevented.
- the audio signal processed by the clip prevention unit 16a is transmitted to the effector 16b for wide processing and also transmitted to the addition unit 16d for addition.
- the effector 16b is a device that changes the sound to be different from the original sound, and changes the characteristics such as the sound pressure level of the sound signal and the output timing. For example, when a 2ch audio signal is input, the effector 16b executes signal processing for changing characteristics such as output timing and sound pressure for each of the 2ch channels.
- the gain controller 16c controls the audio signal processed by the effector 16b to increase the gain.
- the adding unit 16d adds the original audio signal transmitted from the clip prevention unit 16a without being subjected to wide processing, that is, the audio signal subjected to wide processing by the effector 16a. Then, the audio signal corresponding to each channel subjected to the signal processing by the audio signal processing unit 16 is supplied to the pair of speakers 12a and 12b, and is output separately from each speaker.
- FIG. 6 is a flowchart showing the content reproduction method according to the embodiment of the present invention.
- the control unit 15 displays on the display 11 in the professional viewing space stored in the memory 13 (see FIG. 1).
- An incentive ratio for example, a golden ratio, between the horizontal width Wsd of the image to be displayed and the distance Wdo from the ideal viewing position recommended for the horizontal width Wsd to the display 11 is read (step S101).
- the distance Wdx is calculated from the actual distance Wsp between the speakers 12a and 12b read from the memory 13 and the distances Wsplx and Wsprx measured by the distance measuring unit. Is done. (Step S103).
- the value of the lateral width Wsd / distance Wdo read out by the control unit 15 is calculated from the calculated value of Wsp ′ / Wdx. It is determined whether or not it is larger. (Step S104).
- step S104 when it is determined that Wsd / Wdo is greater than Wsp ′ / Wdx (the result of determination in step S104: Yes), as an example of “controlling to increase Wsp ′” according to the present invention, the control unit 15, the audio signal processing unit 16 is controlled to increase the distance Wsp ′ between the virtual speakers 12a and 12b in order to bring the value of Wsp ′ / Wdx closer to the value of Wsd / Wdo (step S105). .
- Step S106 As an example of “widely processing an audio signal” according to the present invention, the supplied audio signal is subjected to wide processing by the audio signal processing unit 16, and the audio signal subjected to the wide processing is subjected to the next speakers 12 a and 12 b.
- the image signal received by the display 11 is output as an image. (Step S107).
- an audio signal that has been subjected to wide processing by the pair of speakers 12a and 12b is output as an audio signal. (Step S108).
- step S104 if it is determined that Wsd / Wdo is not greater than Wsp ′ / Wdx (the result of determination in step S104: No), the “prompt to move the viewer” according to the present invention.
- the image signal generation unit 17 prompts the viewer 5 to move the viewer 5 to an ideal viewing position encouraged, for example, a position where the golden ratio is achieved (see FIG. 4).
- An image signal is generated and transmitted to the display 11 for image output (step S109).
- the voice signal that prompts the viewer to move is generated.
- an audio signal is generated by the audio signal generation unit 18 so as to prompt the viewer 5 to move to an ideal viewing position encouraged, for example, a position where the golden ratio is achieved (see FIG. 4). Then, it is transmitted to the pair of speakers 12a and 12b for outputting sound (step S110).
- an image signal generated and received by the display 11 is output as an image. (Step S107).
- an audio signal generated and received by the pair of speakers 12a and 12b is output as audio. (Step S108).
- the ratio of the distance from the viewer to the display in the viewing space and the distance between the speakers becomes the encouragement ratio in the professional viewing space, for example, the golden ratio. Furthermore, by reproducing an audio signal that improves the sense of breadth for the viewer, it is possible to dynamically reproduce the viewing space with a sense of presence and surround effect, and to create a sense of beauty through hearing. In addition, it is not necessary for the viewer to have specialized knowledge, and it is possible to experience a high-quality viewing space with powerfulness and presence without complicated operations.
- the present invention relates to a technical field of a content reproduction apparatus and method for reproducing a content signal including an image signal and an audio signal read by an optical disc player, for example, from a flat display with a speaker, an AV system, a television apparatus, etc. Is available.
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Abstract
A content reproduction device (1) includes: a display (11); a pair of speakers (12a, 12b) arranged at both sides of the display at a fixed distance from the display; distance identification means (14) which specifies a distance from a viewer (5) to the display; audio signal processing means (16) which processes an audio signal so as to adjust the simulated inter-speaker distance between the pair of speakers in the auditory sense of a viewer; and control means (15). When Wsd is a lateral width of the image displayed on the display, Wdo is a distance from an ideal view position to the display recommended for the lateral width Wsd, Wdx is a specified distance, and Wsp' is an inter-speaker distance, the control means (15) controls the audio signal processing means to adjust the inter-speaker distance Wsp' so that the value of Wsp'/Wdx approaches the value of Wsd/Wdo.
Description
本発明は、例えば光ディスク・プレーヤーで読み取られた画像信号及び音声信号を含むコンテンツ信号を、例えばスピーカ付きのフラットディスプレイ、AV(Audio Visual)システム、テレビジョン装置などから再生するためのコンテンツ再生装置及び方法の技術分野に関する。
The present invention relates to a content reproduction device for reproducing a content signal including, for example, an image signal and an audio signal read by an optical disc player from, for example, a flat display with a speaker, an AV (Audio Visual) system, a television device, and the like. It relates to the technical field of methods.
この種のコンテンツ再生装置では、AVコンテンツとして、ディスプレイから発せられる画像とスピーカから発せられる音声とが同時に、視聴者により体感される。これに関し、画像を改善する技術、音声を改善する技術、臨場感のある音響空間を形成する音場改善技術が提案されている。例えば、特許文献1には、音量調整処理と周波数信号処理とを連動させることによって、方向性の音像定位に遠近感を再現する距離性の音像定位を組み合わせて、臨場感を向上させる音声再生方法が記載されている。特許文献2には、マイクロフォンを装置に接続したり所定の位置に配置したりすることなく、再生音の特性が自動調整するマルチチャネル音声再生装置が記載されている。
In this type of content playback apparatus, as AV content, an image emitted from a display and a sound emitted from a speaker are simultaneously experienced by a viewer. In this regard, a technique for improving an image, a technique for improving sound, and a sound field improving technique for forming a realistic sound space have been proposed. For example, Patent Document 1 discloses a sound reproduction method that improves the sense of reality by combining sound direction localization that reproduces a sense of perspective with directional sound image localization by linking volume adjustment processing and frequency signal processing. Is described. Patent Document 2 describes a multi-channel audio reproducing apparatus that automatically adjusts the characteristics of reproduced sound without connecting a microphone to the apparatus or arranging it at a predetermined position.
しかしながら、上記特許文献1及び2に記載された技術によれば、例えば巨大スクリーン及び高機能サラウンドシステムを備える映画館内における中央付近の客席にて、最も高い臨場感で或いは最もコンテンツの内容が伝わる方式で視聴可能なように、コンテンツは製作されている。即ち、一般家庭で視聴されるのに適したように作成されていないコンテンツが多々ある。このため、画像出力や音声出力を如何に進化させようとも、一般家庭で民生用機器を使って視聴するのでは、そのような進化の恩恵を受けることはできない場合や、却って臨場感等が低下してしまう場合さえあるという技術的問題点がある。
However, according to the techniques described in Patent Documents 1 and 2, for example, a method in which the content of the content is transmitted with the highest presence or the most content in a seat near the center in a movie theater equipped with a huge screen and a high-performance surround system. The content is produced so that it can be viewed on the Internet. That is, there are many contents that have not been created so as to be suitable for viewing at home. For this reason, no matter how the image output or audio output is evolved, viewing using consumer devices in a general household may not be able to benefit from such evolution, or on the other hand, the sense of reality will be reduced. There is a technical problem that it may even happen.
本発明は、例えば上記問題点に鑑みてなされたものであり、民生用機器等を利用して、一般家庭等で視聴する場合であっても、臨場感あるコンテンツの再生を可能ならしめるコンテンツ再生装置及び方法を提供することを課題とする。
The present invention has been made in view of the above-mentioned problems, for example, and content reproduction that makes it possible to reproduce realistic content even when viewing at a general home using a consumer device or the like. It is an object to provide an apparatus and a method.
(コンテンツ再生装置の実施形態)
(Embodiment of content playback device)
本発明に係るコンテンツ再生装置は上記課題を解決するために、画像信号が供給され且つ該供給された画像信号に応じた画像出力を行うディスプレイと、該ディスプレイの両サイドに前記ディスプレイからの距離が固定される形で取り付けられ、音声信号が供給され且つ該供給された音声信号に応じた音声出力を行う一対のスピーカと、視聴者から前記ディスプレイまでの距離を特定する距離特定手段と、前記音声信号を信号処理することで、前記視聴者による聴覚上で擬似的に前記一対のスピーカ間のスピーカ間距離を増減可能であり、前記信号処理された音声信号を前記一対のスピーカに供給する音声信号処理手段と、前記ディスプレイに表示される画像の横幅をWsd、該横幅Wsdに対して奨励される理想的な視聴位置から前記ディスプレイまでの距離をWdo、前記特定された距離をWdx、前記スピーカ間距離をWsp’とするとき、Wsd/Wdoの値に、Wsp’/Wdxの値が近付く側に、前記スピーカ間距離Wsp’を増減させるように前記音声信号処理手段を制御する制御手段とを備える。
In order to solve the above problems, a content reproduction apparatus according to the present invention is provided with a display that is supplied with an image signal and outputs an image according to the supplied image signal, and a distance from the display on both sides of the display. A pair of speakers mounted in a fixed manner and supplied with an audio signal and outputting audio in accordance with the supplied audio signal; distance specifying means for specifying a distance from a viewer to the display; and the audio By processing the signal, the distance between the speakers between the pair of speakers can be artificially increased / decreased on hearing by the viewer, and an audio signal for supplying the signal-processed audio signal to the pair of speakers The horizontal width of the image displayed on the processing means and the display is Wsd, and the image is displayed from the ideal viewing position recommended for the horizontal width Wsd. When the distance to the spray is Wdo, the specified distance is Wdx, and the inter-speaker distance is Wsp ', the inter-speaker distance Wsp' is closer to the value of Wsd / Wdo and closer to the value of Wsp '/ Wdx. Control means for controlling the audio signal processing means so as to increase or decrease.
本発明のコンテンツ再生装置によれば、その動作時には先ず、DVDや、光ディスク等の記録メディアからピックアップ部などを含んでなるメディア再生装置にて読み出された画像信号及び音声信号を含むコンテンツ信号が供給される。
According to the content reproduction apparatus of the present invention, at the time of its operation, first, a content signal including an image signal and an audio signal read out from a recording medium such as a DVD or an optical disk by a media reproduction apparatus including a pickup unit is received. Supplied.
そして、例えばテレビジョン装置、スピーカ付きのフラットディスプレイ、或いはAVシステム等のコンテンツ再生装置は、供給される画像信号に対してディスプレイによって出力する一方、供給される音声信号に対して信号処理をして、スピーカによって出力する。
For example, a television set, a flat display with a speaker, or a content playback device such as an AV system outputs a supplied image signal by a display and performs signal processing on a supplied audio signal. , Output by speaker.
コンテンツ信号を構成する映像信号及び音声信号が、例えば映像、アニメ、映像ライブ、或いは映像付き音楽等のように、相互に対応する形で、或いは一連のコンテンツの内容を調和してなすように、再生される。このコンテンツを再生するにあたって、映像信号及び音声信号が、当該コンテンツ再生装置に逐次入力される。
In order for the video signal and the audio signal constituting the content signal to correspond to each other, such as video, animation, video live, or music with video, or to harmonize the contents of a series of content, Played. In reproducing the content, the video signal and the audio signal are sequentially input to the content reproduction apparatus.
ディスプレイは、供給された画像信号に応じた画像出力を行う。即ち、直視型にて自らの有するスクリーン上に表示したり、投影型にて別途設けられたスクリーン上に表示したりする。
The display performs image output according to the supplied image signal. That is, it is displayed on the screen of its own in the direct view type or on a screen separately provided in the projection type.
一対のスピーカは、ディスプレイの両サイドに取り付けられると共に、ディスプレイからの一定の距離が固定される。画像信号が画像出力されると同時に、一対のスピーカによって、供給された音声信号が音声出力される。ここに一対のスピーカは、通常コンテンツ再生装置の一部として構成されてもよい。他方、コンテンツ再生装置に有線又は無線で接続されて通信されるように、コンテンツ再生装置の両サイドに設置されてもよい。よって、視聴者にとって、スピーカの配置の自由度もより高めることが可能となる。
A pair of speakers are attached to both sides of the display, and a fixed distance from the display is fixed. Simultaneously with the image output of the image signal, the supplied audio signal is output by the pair of speakers. Here, the pair of speakers may be configured as a part of the normal content reproduction apparatus. On the other hand, it may be installed on both sides of the content reproduction apparatus so that it is connected to the content reproduction apparatus by wire or wirelessly for communication. Therefore, it is possible for the viewer to further increase the degree of freedom of speaker arrangement.
距離特定手段は、ディスプレイにより画像の出力及びスピーカより音声の出力に先立って又は出力開始時とほぼ同時に、視聴者からディスプレイまでの距離Wdxを特定する。ここの特定する方法として、視聴者は、直接的にディスプレイなどの設定画面上において視聴者の位置からディスプレイまでの距離を入力してもよい。他方、各スピーカから測定用の音声信号、例えばピンクノイズやホワイトノイズを出力し、視聴者の位置に配置されたマイク等の収音手段における測定用信号の検出結果から距離Wdxを算出する、即ち間接的に測定してもよい。上述の方法によって、例えば、直接的に視聴者からディスプレイまでの距離Wdxを測定してもよいし、先に視聴者からディスプレイの両側にある一対のスピーカまでの距離Wsplx及びWsprxを測定して、スピーカ間の実際距離Wsp、距離Wsplx及びWsprxによって距離Wdxを算出してもよい。
The distance specifying means specifies the distance Wdx from the viewer to the display prior to the output of the image by the display and the output of the sound from the speaker or almost simultaneously with the start of the output. As a specifying method here, the viewer may directly input the distance from the viewer's position to the display on a setting screen such as a display. On the other hand, a sound signal for measurement, for example, pink noise or white noise, is output from each speaker, and the distance Wdx is calculated from the detection result of the measurement signal in the sound collecting means such as a microphone disposed at the viewer's position, that is, You may measure indirectly. By the above-described method, for example, the distance Wdx from the viewer to the display may be directly measured, or the distances Wsplx and Wsprx from the viewer to the pair of speakers on both sides of the display are first measured. The distance Wdx may be calculated from the actual distance Wsp between the speakers, the distance Wsplx, and Wsprx.
続いて、例えばプロセッサ、メモリ、コンバータ等を備えた音声信号処理手段は、プレーヤーから供給される音声信号を信号処理することで、視聴者による聴覚上で擬似的に前記一対のスピーカ間のスピーカ間距離Wsp’を増減可能である。本発明では特に後述するように、制御手段による制御下で、このような増減を行うことになる。音声信号処理手段は、例えば、視聴空間における生成される残響音信号と元の入力音声信号とを合成し再生するによって、視聴者に音の広がりを聴感させることが可能である。この際、音声信号処理手段は、例えば音声信号をワイド処理するワイド処理部であり、フィルタ、加算器などを備え、クロストークキャンセルと呼ばれる方式で再生される音声信号の音像を広げる処理を行うことになる。
Subsequently, the audio signal processing means including, for example, a processor, a memory, a converter, and the like processes the audio signal supplied from the player, so that the speaker between the pair of speakers is simulated in the sense of hearing by the viewer. The distance Wsp ′ can be increased or decreased. In the present invention, as will be described later, such increase / decrease is performed under the control of the control means. The audio signal processing means can make the viewer feel the sound spread by synthesizing and reproducing the reverberation sound signal generated in the viewing space and the original input audio signal, for example. At this time, the audio signal processing means is, for example, a wide processing unit that performs a wide processing on the audio signal, and includes a filter, an adder, and the like, and performs a process of expanding the sound image of the audio signal reproduced by a method called crosstalk cancellation. become.
ここに「音声信号処理」とは、例えば帯域別のゲイン増減処理、あるいは所定の音響処理のように、音声信号に基づいて出力される音声が視聴者に与える印象を何らかの手法によって変更可能な処理の総称である。この際、音声信号処理手段は、各chに対応する音声信号毎に別個の信号処理を施すことにより、各スピーカから出力される音声の音圧レベルや各スピーカから音声が出力されるタイミング等の特性に変更を加える。例えば、2chの音声信号が入力される場合、音声信号処理手段は、2chの各chに出力タイミング、音圧等の特性に変更を加える信号処理を実行するのである。すると、音声信号処理手段によって信号処理された各chに対応する音声信号が、一対のスピーカに供給され、各スピーカから別個独立に出力される。
Here, “audio signal processing” is processing that can change the impression that the audio output based on the audio signal gives to the viewer by some method, such as gain increase / decrease processing for each band or predetermined acoustic processing. It is a general term. At this time, the sound signal processing means performs separate signal processing for each sound signal corresponding to each channel, so that the sound pressure level of the sound output from each speaker, the timing at which the sound is output from each speaker, etc. Make changes to characteristics. For example, when a 2ch audio signal is input, the audio signal processing means executes signal processing for changing characteristics such as output timing and sound pressure for each 2ch channel. Then, the audio signal corresponding to each channel subjected to the signal processing by the audio signal processing means is supplied to the pair of speakers and output separately from each speaker.
そして、制御手段は、例えばプロセッサ、メモリ等を備えた制御部であり、視聴者からディスプレイまでの距離と、スピーカ間距離との比率が、プロの視聴空間における奨励比率、例えば黄金比になるように、音声信号処理手段を制御する。具体的には、ディスプレイに表示される画像の横幅をWsd、該横幅Wsdに対して奨励される理想的な視聴位置からディスプレイまでの距離をWdo、距離特定手段によって特定された距離をWdx、スピーカ間距離をWsp’とする。この際、制御手段は、Wsd/Wdoの値に、Wsp’/Wdxの値が近付く側に、スピーカ間距離Wsp’を増減させるように、音声信号処理手段を制御する。この際、好ましくは或いは理想的には、制御手段は、Wsd/Wdoの値に、Wsp’/Wdxの値が一致すべく、スピーカ間距離Wsp’を増減させるように、音声信号処理手段を制御する。
The control means is a control unit including, for example, a processor, a memory, and the like, so that the ratio between the distance from the viewer to the display and the distance between the speakers becomes an encouragement ratio in the professional viewing space, for example, the golden ratio. In addition, the audio signal processing means is controlled. Specifically, the horizontal width of the image displayed on the display is Wsd, the distance from the ideal viewing position recommended for the horizontal width Wsd to the display is Wdo, the distance specified by the distance specifying means is Wdx, and the speaker Let the distance be Wsp ′. At this time, the control means controls the audio signal processing means so as to increase or decrease the inter-speaker distance Wsp 'so that the value of Wsp' / Wdx approaches the value of Wsd / Wdo. At this time, preferably or ideally, the control means controls the audio signal processing means so as to increase or decrease the inter-speaker distance Wsp ′ so that the value of Wsp ′ / Wdx matches the value of Wsd / Wdo. To do.
例えば、制御手段は、現実の視聴空間におけるWsp’/Wdxがプロの視聴空間におけるWsd/Wdoより小さいと判別される場合には、Wsp’/Wdxの値をWsd/Wdoの値に近付けるため、仮想的なスピーカ間距離Wsp’を増加させるように、音声信号処理手段を制御してもよい。逆に、現実の視聴空間におけるWsp’/Wdxがプロの視聴空間におけるWsd/Wdoより大きい場合に、Wsp’/Wdxの値をWsd/Wdoの値に近付けるため、仮想的なスピーカ間距離Wsp’を減少させる又は増減させないように、音声信号処理手段を制御してもよい。
For example, when it is determined that Wsp ′ / Wdx in the actual viewing space is smaller than Wsd / Wdo in the professional viewing space, the control means brings the value of Wsp ′ / Wdx closer to the value of Wsd / Wdo. The audio signal processing means may be controlled so as to increase the virtual inter-speaker distance Wsp ′. Conversely, when Wsp ′ / Wdx in the actual viewing space is larger than Wsd / Wdo in the professional viewing space, the value of Wsp ′ / Wdx is made closer to the value of Wsd / Wdo. The audio signal processing means may be controlled so as to decrease or not increase or decrease the signal.
なお、本発明のコンテンツ再生装置は、更に画像信号処理手段を備えて構成されてもよい。ここに画像信号処理手段は、音声信号処理手段と同様な機能を有している。例えば、プロセッサ、メモリ等を備えた画像信号処理手段によって、画像信号を信号処理することで、ディスプレイに表示される画像の横幅を増減し、更に信号処理された画像信号をディスプレイに供給する。
Note that the content playback apparatus of the present invention may further include an image signal processing means. Here, the image signal processing means has the same function as the audio signal processing means. For example, the image signal is processed by an image signal processing means including a processor, a memory, etc., thereby increasing or decreasing the horizontal width of the image displayed on the display, and further supplying the image signal subjected to signal processing to the display.
画像信号処理手段に対応するため、制御手段は、視聴者からディスプレイまでの距離と、スピーカ間距離との比率については、プロの視聴空間における奨励比率、例えば黄金比になるように、画像信号処理手段を制御する。具体的には、制御手段は、音声信号処理手段を制御する方法と同様に、Wsd/Wdoの値に、Wsp’/Wdxの値が近付く側に、ディスプレイに表示される画像の横幅Wsdを増減させるように、画像信号処理手段を制御する。
In order to correspond to the image signal processing means, the control means performs the image signal processing so that the ratio of the distance from the viewer to the display and the distance between the speakers is an encouraged ratio in a professional viewing space, for example, a golden ratio. Control means. Specifically, the control means increases or decreases the horizontal width Wsd of the image displayed on the display so that the value of Wsp ′ / Wdx approaches the value of Wsd / Wdo, as in the method of controlling the audio signal processing means. The image signal processing means is controlled so as to make it happen.
例えば、制御手段は、現実の視聴空間におけるWsp’/Wdxがプロの視聴空間におけるWsd/Wdoより小さいと判別される場合には、Wsp’/Wdxの値をWsd/Wdoの値に近付けるため、横幅Wsdを増加させる又は増減させないように、画像信号処理手段を制御してもよい。逆に、現実の視聴空間におけるWsp’/Wdxがプロの視聴空間におけるWsd/Wdoより大きい場合に、Wsp’/Wdxの値をWsd/Wdoの値に近付けるため、横幅Wsdを小さくさせるように、画像信号処理手段を制御してもよい。
For example, when it is determined that Wsp ′ / Wdx in the actual viewing space is smaller than Wsd / Wdo in the professional viewing space, the control means brings the value of Wsp ′ / Wdx closer to the value of Wsd / Wdo. The image signal processing means may be controlled so that the lateral width Wsd is not increased or decreased. On the contrary, when Wsp ′ / Wdx in the actual viewing space is larger than Wsd / Wdo in the professional viewing space, the width Wsd is made smaller to bring the value of Wsp ′ / Wdx closer to the value of Wsd / Wdo. The image signal processing means may be controlled.
なお、本発明のコンテンツ再生装置は、上述の通り、例えばテレビジョン装置など単品製品であってもよいし、他方、PDP(Plasma Display Panel:プラズマーディスプレイ)、AVアンプ、及び一対のスピーカを備えて、各製品の組み合わせによって構成されてもよい。この際、AVアンプはPDPより画像出力用の大きさの情報が、HDMI(High Definition Multimedia Interface)などの通信インタフェースに通じて伝送され、一対のスピーカがPDPの両サイドに設置される。よって、機器間連続上の課題を自動調整することが可能になる。なお、PDP、AVアンプ、及び一対スピーカは、物理的に離間して配置されるものであってもかまわない。例えば、これらは別売りされ、別機会に設置され、別機会に交換されてもよい。いずれにせよ、一対のスピーカは、ディスプレイの両サイドにディスプレイからの距離が固定される形で取り付けられる。また、フロント左右スピーカをなす一対のスピーカ以外の、例えばセンタースピーカ、スーパーウーハ、リアスピーカ等が、一対のスピーカと共に用いられてよいことはいうまでもない。
As described above, the content reproduction apparatus of the present invention may be a single product such as a television apparatus, and includes a PDP (Plasma Display Panel), an AV amplifier, and a pair of speakers. It may be configured by a combination of products. At this time, the AV amplifier transmits size information for image output from the PDP through a communication interface such as HDMI (High Definition Multimedia Interface), and a pair of speakers are installed on both sides of the PDP. Therefore, it becomes possible to automatically adjust the problem on the continuity between devices. Note that the PDP, the AV amplifier, and the pair of speakers may be physically separated from each other. For example, they may be sold separately, installed at different occasions, and exchanged at different occasions. In any case, the pair of speakers are attached to both sides of the display so that the distance from the display is fixed. Needless to say, a center speaker, a super woofer, a rear speaker, and the like other than the pair of speakers forming the front left and right speakers may be used together with the pair of speakers.
以上のように、音声信号処理手段及び制御手段によって、視聴空間における視聴者からディスプレイまでの距離と、スピーカ間距離との比率が、プロの視聴空間における奨励比率、例えば黄金比になるように画像出力及び音声出力を実行可能となる。更に、視聴者に対して、広がり感が向上される音声信号を再生することで、臨場感やサラウンド効果ある視聴空間をダイナミックに再現すると共に、聴覚を通じて美感を起こさせること可能となる。しかも、視聴者が専門的な知識を有することが必要とならないし、煩雑な操作をすることなく迫力や臨場感のある高品位の視聴空間を体感することができる。
As described above, the audio signal processing means and the control means enable the image so that the ratio between the distance from the viewer to the display in the viewing space and the distance between the speakers becomes the encouragement ratio in the professional viewing space, for example, the golden ratio. Output and audio output can be executed. Furthermore, by reproducing an audio signal that improves the sense of breadth for the viewer, it is possible to dynamically reproduce a viewing space with a sense of presence and a surround effect, and to create a sense of beauty through hearing. In addition, it is not necessary for the viewer to have specialized knowledge, and it is possible to experience a high-quality viewing space with powerfulness and presence without complicated operations.
特に、ディスプレイに表示される画像の幅までも黄金比の関係を満たすように設定することは、民生用のディスプレイのサイズからして困難であることからすれば、比較的容易にして実践可能である次善策を提供する本発明は、大変有利である。
In particular, it is relatively easy and practical to set the width of the image displayed on the display so as to satisfy the golden ratio relationship because it is difficult due to the size of the consumer display. The present invention, which provides a workaround, is very advantageous.
本発明のコンテンツ再生装置の他の態様では、前記距離特定手段は、前記表示出力及び前記音声出力に先立って、距離測定モードにて前記視聴者の位置に置かれたマイクまでの距離を、前記一対のスピーカからの測定用音声が前記マイクに拾われるまでの時間に基づいて、前記距離を測定する。
In another aspect of the content reproduction apparatus of the present invention, the distance specifying means calculates the distance to the microphone placed at the viewer's position in the distance measurement mode prior to the display output and the audio output. The distance is measured based on the time until the measurement sound from the pair of speakers is picked up by the microphone.
この態様によれば、距離特定手段は、ディスプレイにより画像の出力及びスピーカより音声の出力に先立って、視聴者の位置に置かれたマイクまでの距離を測定する。例えば視聴者の位置に収音手段とするマイクが置かれて、一旦コンテンツ再生装置が、距離測定モードに設定されると、スピーカから測定用の音声信号が発信される。すると、収音手段とするマイクによって、発信された測定用の音声信号が収音される。収音された音声信号がマイクに拾われるまでの時間に基づいて、一対のスピーカからマイクまでの距離、即ち視聴者からディスプレイの両側にある一対のスピーカまでの距離Wsplx及びWsprxが測定される。
According to this aspect, the distance specifying means measures the distance to the microphone placed at the viewer's position prior to outputting the image from the display and outputting the sound from the speaker. For example, when a microphone serving as a sound collecting unit is placed at the viewer's position and the content reproduction apparatus is once set to the distance measurement mode, a sound signal for measurement is transmitted from the speaker. Then, the transmitted sound signal for measurement is picked up by the microphone as the sound pickup means. Based on the time until the collected sound signal is picked up by the microphone, the distance from the pair of speakers to the microphone, that is, the distance from the viewer to the pair of speakers on both sides of the display, Wsplx and Wsprx, is measured.
そして、スピーカ間の実際距離Wsp、距離Wsplx及びWsprxによって、距離Wdxが算出される。言い換えれば、視聴者から一対のスピーカの各々までの距離を測定することで、視聴者からディスプレイまでの距離が間接的に測定される。
Then, the distance Wdx is calculated from the actual distance Wsp between the speakers, the distance Wsplx, and Wsprx. In other words, the distance from the viewer to the display is indirectly measured by measuring the distance from the viewer to each of the pair of speakers.
このように構成すれば、ユーザの負担を減らすことができ、視聴者からディスプレイまでの正確な距離を簡便且つ迅速に算出可能となる。しかも、コンテンツ再生装置に関する知識のないユーザにとっても、かかる距離の測定は易しく、直接入力方法で入力を誤りやすいという問題が妨げられる。
With this configuration, the burden on the user can be reduced, and the accurate distance from the viewer to the display can be calculated easily and quickly. In addition, even for users who do not have knowledge about the content playback apparatus, it is easy to measure such distances, and the problem that the input is likely to be erroneous by the direct input method is hindered.
本発明のコンテンツ再生装置の他の態様では、前記距離特定手段は、前記表示出力及び前記音声出力に先立って、予め測定手段で測定された前記視聴者から前記ディスプレイまでの距離情報を入力可能に構成されており、該入力された距離情報により示される距離として前記距離を特定する。
In another aspect of the content reproduction apparatus of the present invention, the distance specifying means can input distance information from the viewer to the display measured in advance by the measuring means prior to the display output and the audio output. The distance is specified as a distance indicated by the input distance information.
この態様によれば、距離特定手段は、ディスプレイにより画像の出力及びスピーカより音声の出力に先立って、前記視聴者から前記ディスプレイまでの距離を入力する。ここで入力される距離情報は、予め所定の測定手段で測定されるものであり、その測定結果を示す距離情報が、インタフェースから自動的に入力されてもよい。或いは、その測定結果を示す距離情報を認識した視聴者が、リモコン操作等の外部操作を行うことで入力されてもよい。外部操作による入力の場合であれば、距離特定手段は、表示出力や音声出力により、距離情報の外部操作による入力を催促してもよく、催促に応じてユーザは入力操作を行うことになる。或いは、例えば、視聴者は巻き尺により距離を直接的に計測し、当該計測結果を設定画面上において入力してもよい。
According to this aspect, the distance specifying means inputs the distance from the viewer to the display prior to the output of the image by the display and the output of the sound by the speaker. The distance information input here is measured in advance by a predetermined measuring means, and distance information indicating the measurement result may be automatically input from the interface. Or the viewer who recognized the distance information which shows the measurement result may input by performing external operations, such as remote control operation. In the case of an input by an external operation, the distance specifying unit may prompt the input of the distance information by an external operation by display output or sound output, and the user performs an input operation in response to the prompt. Alternatively, for example, the viewer may directly measure the distance with a tape measure and input the measurement result on the setting screen.
このように構成すれば、かかる距離の測定は易しく、マイクなどの収音手段を用いる間接測定方法でリビングルーム等、人が出入りし雑音の生じやすい環境下に、周囲の雑音により検出結果に変動が生じてしまうという問題が妨げられる。
With this configuration, it is easy to measure such distances, and indirect measurement methods using sound collection means such as microphones, the detection results fluctuate due to ambient noise in an environment where people are likely to enter and exit, such as living rooms. This prevents the problem of being generated.
本発明のコンテンツ再生装置の他の態様では、前記Wsd/Wdoの値を予め格納する格納手段を更に備え、前記制御手段は、前記格納されたWsd/Wdoの値を読み出し、前記読み出されたWsd/Wdoの値に、前記Wsp’/Wdxの値が近付く側に、前記スピーカ間距離Wsp’を増減させるように前記音声信号処理手段を制御する。
In another aspect of the content reproduction apparatus of the present invention, the content reproduction apparatus further includes storage means for storing the Wsd / Wdo value in advance, and the control means reads the stored Wsd / Wdo value and reads the read value. The audio signal processing means is controlled so as to increase or decrease the inter-speaker distance Wsp ′ so that the value of Wsp ′ / Wdx approaches the value of Wsd / Wdo.
この態様によれば、プロの視聴空間におけるディスプレイに表示される画像の横幅Wsdと、該横幅Wsdに対して奨励される理想的な視聴位置からディスプレイまでの距離Wdoとの奨励比率、例えば黄金比が、予めメモリ等の格納手段に格納されている。なお、格納手段内の比率は、距離Wsd/距離Wdoを示す演算式の形や、ルックアップテーブルの形で記憶されるなど、特に限定するものではない。
According to this aspect, the incentive ratio between the horizontal width Wsd of the image displayed on the display in the professional viewing space and the distance Wdo from the ideal viewing position to the display recommended for the horizontal width Wsd, for example, the golden ratio Are stored in advance in storage means such as a memory. The ratio in the storage means is not particularly limited, such as being stored in the form of an arithmetic expression indicating the distance Wsd / distance Wdo or in the form of a lookup table.
そして動作時には、制御手段は、格納手段に格納されているWsd/Wdoの値を読み出し、読み出されたWsd/Wdoの値に、Wsp’/Wdxの値が近付く側に、スピーカ間距離Wsp’を増減させるように音声信号処理手段を制御する。
In operation, the control means reads the value of Wsd / Wdo stored in the storage means, and the speaker distance Wsp ′ is closer to the read Wsd / Wdo value closer to the value of Wsp ′ / Wdx. The audio signal processing means is controlled so as to increase or decrease.
従って、視聴者が意識することなく、自動的に黄金比になる視聴空間に調整し、ダイナミックな視聴空間を提供できる。
Therefore, it is possible to provide a dynamic viewing space by automatically adjusting the viewing space to the golden ratio without being conscious of the viewer.
本発明のコンテンツ再生装置の他の態様では、前記制御手段は、前記Wsd/Wdoの値が前記Wsp’/Wdxより大きい場合に、前記スピーカ間距離Wsp’を増加させるように前記音声信号処理手段を制御し、前記Wsd/Wdoの値が前記Wsp’/Wdxより小さい場合に、前記スピーカ間距離Wsp’を減少させる又は増減させないように前記音声信号処理手段を制御する。
In another aspect of the content reproduction apparatus of the present invention, the audio signal processing means is configured to increase the inter-speaker distance Wsp ′ when the value of Wsd / Wdo is greater than Wsp ′ / Wdx. And when the value of Wsd / Wdo is smaller than Wsp ′ / Wdx, the audio signal processing means is controlled so as not to decrease or increase or decrease the inter-speaker distance Wsp ′.
この態様によれば、制御手段は、現実の視聴空間におけるWsp’/Wdxがプロの視聴空間におけるWsd/Wdoより小さいと判別される場合には、Wsp’/Wdxの値をWsd/Wdoの値に近付けるため、仮想的なスピーカ間距離Wsp’を増加させるように、音声信号処理手段を制御してもよい。逆に、現実の視聴空間におけるWsp’/Wdxがプロの視聴空間におけるWsd/Wdoより大きい場合に、Wsp’/Wdxの値をWsd/Wdoの値に近付けるため、仮想的なスピーカ間距離Wsp’を減少させる又は増減させないように、音声信号処理手段を制御してもよい。
According to this aspect, when it is determined that Wsp ′ / Wdx in the actual viewing space is smaller than Wsd / Wdo in the professional viewing space, the control means sets the value of Wsp ′ / Wdx to the value of Wsd / Wdo. Therefore, the audio signal processing means may be controlled so as to increase the virtual speaker distance Wsp ′. Conversely, when Wsp ′ / Wdx in the actual viewing space is larger than Wsd / Wdo in the professional viewing space, the value of Wsp ′ / Wdx is made closer to the value of Wsd / Wdo. The audio signal processing means may be controlled so as to decrease or not increase or decrease the signal.
従って、極めて簡単な判別処理によって、黄金比になる視聴空間を創出することのでき、更にいわゆる美的なセンスを、視聴者に確実に与えてしまう。
Therefore, it is possible to create a viewing space with a golden ratio by an extremely simple discrimination process, and to surely give the viewer a so-called aesthetic sense.
本発明の他のコンテンツ再生装置は上記課題を解決するために、画像信号が供給され且つ該供給された画像信号に応じた画像出力を行うディスプレイと、該ディスプレイの両サイドに前記ディスプレイからの距離が固定される形で取り付けられ、音声信号が供給され且つ該供給された音声信号に応じた音声出力を行う一対のスピーカと、視聴者から前記ディスプレイ又は前記一対のスピーカまでの距離を特定する距離特定手段と、前記特定された距離と前記画像の横幅に応じて定められた第1所定距離との差を小さくする方向へ前記視聴者を動かすことを催促する旨の画像信号を生成し且つ該生成された画像信号を供給する画像信号生成手段、及び前記第1所定距離との差を小さくする方向へ前記視聴者を動かすことを催促する旨の音声信号を生成し且つ該生成された音声信号を供給する音声信号生成手段のうち少なくとも一方の信号生成手段とを備える。
In order to solve the above-mentioned problem, another content reproduction apparatus of the present invention is provided with a display that is supplied with an image signal and outputs an image according to the supplied image signal, and a distance from the display on both sides of the display. A pair of speakers that are attached in a fixed form, that are supplied with audio signals and that output audio according to the supplied audio signals, and a distance that specifies the distance from the viewer to the display or the pair of speakers Generating an image signal for urging the viewer to move in a direction to reduce a difference between the specified distance and the first predetermined distance determined according to a width of the image; An image signal generating means for supplying the generated image signal, and an audio signal for urging the viewer to move in a direction to reduce the difference from the first predetermined distance. It generates and and at least one signal generation means of the audio signal generating means for supplying a voice signal said generated.
本発明の他のコンテンツ再生装置によれば、ディスプレイによって画像信号が出力され、一対のスピーカによって音声信号が出力される。距離特定手段によって視聴者からディスプレイまでの距離Wdxが特定される、或いは視聴者から一対のスピーカの各々までの距離Wsplx、Wsprxを測定することで、視聴者からディスプレイまでの距離Wdxが間接的に測定される。すると、距離測定手段にて特定された距離Wdxと、ディスプレイに表示される画像の横幅Wsdとの比率は、プロの視聴空間における奨励比率、例えば黄金比になるか或いは黄金比に近くなるように、画像信号生成手段又は音声信号生成手段によって、視聴者を動かすことを催促する。
According to another content reproduction apparatus of the present invention, an image signal is output by a display, and an audio signal is output by a pair of speakers. The distance Wdx from the viewer to the display is specified by the distance specifying means, or the distance Wdx from the viewer to the display is indirectly measured by measuring the distances Wsplx and Wsprx from the viewer to each of the pair of speakers. Measured. Then, the ratio between the distance Wdx specified by the distance measuring means and the horizontal width Wsd of the image displayed on the display is an encouraged ratio in the professional viewing space, for example, the golden ratio or close to the golden ratio. The image signal generating means or the audio signal generating means prompts the viewer to move.
具体的には、第1所定距離Wdx’と横幅Wsdとの比率が黄金比にすることに応じて、第1所定距離Wdx’が定められた。すると、画像信号生成手段又は音声信号生成手段によって、距離Wdxと第1所定距離Wdx’との差を小さくする方向へ、視聴者を動かすことを催促する旨の画像信号又は音声信号が生成されてもよい。この生成された画像信号又は音声信号により、視聴者を動かすように催促する。
Specifically, the first predetermined distance Wdx ′ is determined according to the ratio of the first predetermined distance Wdx ′ to the lateral width Wsd being the golden ratio. Then, an image signal or an audio signal is generated by the image signal generation unit or the audio signal generation unit to urge the viewer to move in the direction of reducing the difference between the distance Wdx and the first predetermined distance Wdx ′. Also good. The generated image signal or audio signal prompts the viewer to move.
この際、視聴者を動かすことを催促する旨の画像信号が生成されてもよいし、音声生成手段によって視聴者を動かすことを催促する同様な旨の音声信号が生成されてもよいし、画像生成手段によって生成されると共に、音声生成手段によって生成されてもよい。生成された画像信号若しくは音声信号、又は画像信号及び音声信号両方の組み合わせによって、視聴者を奨励される理想的な視聴位置、例えば黄金比になる位置へ動かすことを催促する。
At this time, an image signal for prompting to move the viewer may be generated, or an audio signal for prompting to move the viewer may be generated by the sound generation unit, or an image may be generated. It may be generated by the sound generation means as well as generated by the generation means. The generated image signal or audio signal, or a combination of both image and audio signals, prompts the viewer to move to an ideal viewing position, such as a golden ratio.
例えば、距離Wdxと横幅Wsdとの比率が黄金比より小さいと判別される、即ち距離Wdxが第1所定距離Wdx’より短い場合は、Wdx/Wsdの値を黄金比になるため、視聴者をディスプレイ側から遠く動かすことを催促する。逆に、距離Wdxと横幅Wsdとの比率が黄金比より大きいと判別される、即ち距離Wdxが第1所定距離Wdx’より長い場合は、Wdx/Wsdの値を黄金比になるため、視聴者をディスプレイ側に近く動かすことを催促する。
For example, when it is determined that the ratio of the distance Wdx to the width Wsd is smaller than the golden ratio, that is, when the distance Wdx is shorter than the first predetermined distance Wdx ′, the value of Wdx / Wsd becomes the golden ratio. Prompt to move far from the display. Conversely, if the ratio between the distance Wdx and the width Wsd is determined to be larger than the golden ratio, that is, if the distance Wdx is longer than the first predetermined distance Wdx ′, the value of Wdx / Wsd becomes the golden ratio. To move the display closer to the display.
以上のように、画像信号生成手段及び音声信号生成手段によって、視聴空間における視聴者からディスプレイまでの距離Wdxと、ディスプレイに表示される画像の横幅Wsdとの比率が、黄金比になるように画像出力及び音声出力を実行可能となる。更に、視聴者に対して、聴覚を通じて美感を起こさせること可能となる。しかも、視聴者が専門的な知識を有することが必要とならないし、煩雑な操作をすることなく、臨場感のある視聴空間を体感することができる。
As described above, the image signal generating unit and the audio signal generating unit allow the ratio of the distance Wdx from the viewer to the display in the viewing space and the horizontal width Wsd of the image displayed on the display to be the golden ratio. Output and audio output can be executed. Furthermore, it is possible to make the viewer feel aesthetically through hearing. Moreover, it is not necessary for the viewer to have specialized knowledge, and it is possible to experience a realistic viewing space without complicated operations.
特に、ディスプレイに表示される画像の幅までも黄金比の関係を完全に満たすように設定することが困難な場合、民生用のディスプレイのサイズでも達成可能な範囲内で、黄金比に近い環境を実現することを可能ならしめる本発明は、大変有利である。
In particular, when it is difficult to set the golden ratio relationship even for the width of the image displayed on the display, the environment close to the golden ratio should be achieved within the range that can be achieved even with the size of a consumer display. The present invention which makes it possible to realize is very advantageous.
本発明の他のコンテンツ再生装置の他の態様では、前記音声信号を信号処理することで、前記視聴者による聴覚上で擬似的に前記一対のスピーカ間のスピーカ間距離を増減可能であり、前記信号処理された音声信号を前記一対のスピーカに供給する音声信号処理手段と、前記特定された視聴者から前記ディスプレイまでの距離に応じて定められた第2所定距離に、前記スピーカ間距離を擬似的に近付けるように前記音声信号処理手段を制御する制御手段とを備える。
In another aspect of the other content reproduction apparatus of the present invention, by performing signal processing on the audio signal, the distance between the speakers between the pair of speakers can be artificially increased or decreased on hearing by the viewer, The audio signal processing means for supplying the signal-processed audio signal to the pair of speakers, and the inter-speaker distance is simulated at a second predetermined distance determined according to the distance from the specified viewer to the display. Control means for controlling the audio signal processing means so as to approach the target.
この態様によれば、例えばプロセッサ、メモリ、コンバータ等を備えた音声信号処理手段によって、プレーヤーから供給される音声信号が信号処理されることで、視聴者による聴覚上で擬似的に前記一対のスピーカ間のスピーカ間距離Wsp’を増減可能である。例えば、視聴空間における生成される残響音信号と音声信号とを合成し再生するによって、視聴者に音の広がりを聴感させる。例えば、例えば音声信号をワイド処理するワイド処理部であり、フィルタ、加算器などを備え、クロストークキャンセルと呼ばれる方式で再生される音声信号の音像を広げる処理を行う。
According to this aspect, the audio signal processing means including a processor, a memory, a converter, etc., for example, processes the audio signal supplied from the player so that the pair of speakers can be simulated in the sense of hearing by the viewer. It is possible to increase or decrease the inter-speaker distance Wsp ′. For example, the reverberation sound signal generated in the viewing space and the audio signal are synthesized and reproduced to make the viewer feel the sound spread. For example, it is a wide processing unit that performs a wide processing on an audio signal, for example, and includes a filter, an adder, and the like, and performs a process of expanding the sound image of the audio signal reproduced by a method called crosstalk cancellation.
そして、制御手段は、例えばプロセッサ、メモリ等を備えた制御部であり、視聴者からディスプレイまでの距離Wdxと、スピーカ間距離Wsp’との比率については、黄金比になるように音声信号処理手段を制御する。
The control means is a control unit including, for example, a processor, a memory, and the like, and the audio signal processing means is set so that the ratio of the distance Wdx from the viewer to the display and the inter-speaker distance Wsp ′ becomes the golden ratio. To control.
具体的には、例えば視聴者からディスプレイまでの距離Wdxと第2所定距離Wsp2との比率が黄金比にすることに応じて、第2所定距離Wsp2が定められた。すると、制御手段は、例えば、距離Wdxとスピーカ間距離Wsp’との比率が黄金比より小さいと判別される、即ちスピーカ間距離Wsp’が第2所定距離Wsp2より大きい場合は、Wdx/Wsp’の値を黄金比に近付けるため、即ち仮想的なスピーカ間距離Wsp’を増減させないように、音声信号処理手段を制御する。逆に、距離Wdxとスピーカ間距離Wsp’との比率が黄金比より大きいと判別される、即ちスピーカ間距離Wsp’が第2所定距離Wsp2より小さい場合は、Wdx/Wsp’の値を黄金比に近付けるため、即ち仮想的なスピーカ間距離Wsp’を増加させるように、音声信号処理手段を制御する。
Specifically, for example, the second predetermined distance Wsp2 is determined according to the ratio of the distance Wdx from the viewer to the display and the second predetermined distance Wsp2 being the golden ratio. Then, for example, the control means determines that the ratio of the distance Wdx to the speaker distance Wsp ′ is smaller than the golden ratio, that is, if the speaker distance Wsp ′ is greater than the second predetermined distance Wsp2, Wdx / Wsp ′. The audio signal processing means is controlled so as to bring the value of close to the golden ratio, that is, so as not to increase or decrease the virtual inter-speaker distance Wsp ′. Conversely, when the ratio of the distance Wdx to the speaker distance Wsp ′ is determined to be larger than the golden ratio, that is, when the speaker distance Wsp ′ is smaller than the second predetermined distance Wsp2, the value of Wdx / Wsp ′ is set to the golden ratio. The sound signal processing means is controlled so that the distance between the speakers Wsp ′ is increased.
以上のように、音声信号処理手段及び制御手段によって、視聴空間における視聴者からディスプレイまでの距離Wdxとスピーカ間距離Wsp’との比率が、黄金比になるように実現可能となる。更に、視聴者に対して、広がり感が向上される音声信号を再生することで、臨場感やサラウンド効果ある視聴空間をダイナミックに再現すると共に、聴覚を通じて美感を起こさせること可能となる。しかも、視聴者に対して、視聴者が意識することなく、自動的に黄金比になる視聴空間に調整し、臨場感のある視聴空間を提供できる。
As described above, the audio signal processing means and the control means can be realized such that the ratio of the distance Wdx from the viewer to the display in the viewing space and the inter-speaker distance Wsp ′ becomes the golden ratio. Furthermore, by reproducing an audio signal that improves the sense of breadth for the viewer, it is possible to dynamically reproduce a viewing space with a sense of presence and a surround effect, and to create a sense of beauty through hearing. Moreover, the viewer can automatically adjust the viewing space to the golden ratio without being conscious of the viewer, thereby providing a realistic viewing space.
尚、本発明の他のコンテンツ再生装置においても、上述した本発明のコンテンツ再生装置の場合と同様の各種態様を採ることが可能である。
It should be noted that other content reproduction apparatuses of the present invention can take various aspects similar to those of the content reproduction apparatus of the present invention described above.
(コンテンツ再生方法の実施形態)
(Embodiment of content playback method)
本発明に係るコンテンツ再生方法は上記課題を解決するために、画像信号が供給され且つ該供給された画像信号に応じた画像出力を行うディスプレイと、該ディスプレイの両サイドに前記ディスプレイからの距離が固定される形で取り付けられ、音声信号が供給され且つ該供給された音声信号に応じた音声出力を行う一対のスピーカとを備えるコンテンツ再生装置におけるコンテンツ再生方法であって、視聴者から前記ディスプレイまでの距離を特定する距離特定工程と、前記音声信号を信号処理することで、前記視聴者による聴覚上で擬似的に前記一対のスピーカ間のスピーカ間距離を増減可能であり、前記信号処理された音声信号を前記一対のスピーカに供給する音声信号処理工程と、前記ディスプレイに表示される画像の横幅をWsd、該横幅Wsdに対して奨励される理想的な視聴位置から前記ディスプレイまでの距離をWdo、前記特定された距離をWdx、前記スピーカ間距離をWsp’とするとき、Wsd/Wdoの値に、Wsp’/Wdxの値が近付く側に、前記スピーカ間距離Wsp’を増減させるように前記音声信号処理手段を制御する制御工程とを備える。
In order to solve the above problems, a content reproduction method according to the present invention is provided with a display that is supplied with an image signal and outputs an image according to the supplied image signal, and a distance from the display on both sides of the display. A content playback method in a content playback apparatus, comprising a pair of speakers attached in a fixed manner, to which an audio signal is supplied and that outputs audio in accordance with the supplied audio signal, from a viewer to the display The distance identification step for identifying the distance between the pair of speakers can be artificially increased / decreased in the auditory sense of the viewer by signal processing the audio signal and the signal processing is performed. An audio signal processing step of supplying an audio signal to the pair of speakers, and a horizontal width of an image displayed on the display as Ws When the distance from the ideal viewing position recommended for the width Wsd to the display is Wdo, the specified distance is Wdx, and the distance between the speakers is Wsp ′, the value of Wsd / Wdo is A control step of controlling the audio signal processing means so as to increase or decrease the inter-speaker distance Wsp ′ on the side where the value of Wsp ′ / Wdx approaches.
本発明に係るコンテンツ再生方法によれば、音声信号処理工程及び制御工程によって、視聴空間における視聴者からディスプレイまでの距離と、スピーカ間距離との比率が、プロの視聴空間における奨励比率、例えば黄金比になるように画像出力及び音声出力を実行可能となる。更に、視聴者に対して、広がり感が向上される音声信号を再生することで、臨場感やサラウンド効果ある視聴空間をダイナミックに再現すると共に、聴覚を通じて美感を起こさせること可能となる。しかも、視聴者が専門的な知識を有することが必要とならないし、煩雑な操作をすることなく迫力や臨場感のある高品位の視聴空間を体感することができる。
According to the content reproduction method of the present invention, the ratio of the distance from the viewer to the display in the viewing space and the distance between the speakers by the audio signal processing step and the control step is the recommended ratio in the professional viewing space, for example, golden Image output and audio output can be executed so that the ratio becomes equal. Furthermore, by reproducing an audio signal that improves the sense of breadth for the viewer, it is possible to dynamically reproduce a viewing space with a sense of presence and a surround effect, and to create a sense of beauty through hearing. In addition, it is not necessary for the viewer to have specialized knowledge, and it is possible to experience a high-quality viewing space with powerfulness and presence without complicated operations.
尚、本発明のコンテンツ再生方法においても、上述した本発明のコンテンツ再生装置の場合と同様の各種態様を採ることが可能である。
It should be noted that the content reproduction method of the present invention can also adopt various aspects similar to those of the content reproduction apparatus of the present invention described above.
本発明の他のコンテンツ再生方法は上記課題を解決するために、画像信号が供給され且つ該供給された画像信号に応じた画像出力を行うディスプレイと、該ディスプレイの両サイドに前記ディスプレイからの距離が固定される形で取り付けられ、音声信号が供給され且つ該供給された音声信号に応じた音声出力を行う一対のスピーカとを備えるコンテンツ再生装置におけるコンテンツ再生方法であって、視聴者から前記ディスプレイ又は前記一対のスピーカまでの距離を特定する距離特定工程と、前記特定された距離と前記画像の横幅に応じて定められた第1所定距離との差を小さくする方向へ前記視聴者を動かすことを催促する旨の画像信号を生成し且つ該生成された画像信号を供給する画像信号生成工程、及び前記第1所定距離との差を小さくする方向へ前記視聴者を動かすことを催促する旨の音声信号を生成し且つ該生成された音声信号を供給する音声信号生成工程のうち少なくとも一方の信号生成工程とを備える。
In order to solve the above-described problem, another content reproduction method of the present invention supplies a display to which an image signal is supplied and outputs an image corresponding to the supplied image signal, and distances from the display to both sides of the display. A content playback method in a content playback apparatus, comprising a pair of speakers to which audio signals are supplied and audio output according to the supplied audio signals is attached, wherein the display is received from a viewer Alternatively, the viewer is moved in a direction to reduce the difference between the distance specifying step for specifying the distance to the pair of speakers and the first predetermined distance determined according to the specified distance and the width of the image. An image signal generating step for generating an image signal for prompting and supplying the generated image signal, and a difference from the first predetermined distance And at least one signal generation step of audio signal generating step of supplying a voice signal generated and the generated audio signal to the effect that prompts that the direction to reduce moving the viewer.
本発明に係るコンテンツ再生方法によれば、画像信号生成手段及び音声信号生成手段によって、視聴空間における視聴者からディスプレイまでの距離Wdxと、ディスプレイに表示される画像の横幅Wsdとの比率が、黄金比になるように実現可能となる。更に、視聴者に対して、聴覚を通じて美感を起こさせること可能となる。しかも、視聴者が専門的な知識を有することが必要とならないし、煩雑な操作をすることなく、臨場感のある視聴空間を体感することができる。
According to the content reproduction method of the present invention, the ratio of the distance Wdx from the viewer to the display in the viewing space and the horizontal width Wsd of the image displayed on the display is golden by the image signal generation unit and the audio signal generation unit. It becomes feasible to become ratio. Furthermore, it is possible to make the viewer feel aesthetically through hearing. Moreover, it is not necessary for the viewer to have specialized knowledge, and it is possible to experience a realistic viewing space without complicated operations.
尚、本発明の他のコンテンツ再生方法においても、上述した本発明の他のコンテンツ再生装置の場合と同様の各種態様を採ることが可能である。
It should be noted that, in the other content reproduction method of the present invention, various aspects similar to those of the above-described other content reproduction device of the present invention can be adopted.
本発明の作用及び他の利得は次に説明する実施するための発明を実施するための最良の形態から明らかにされる。
The operation and other advantages of the present invention will be clarified from the best mode for carrying out the invention to be described below.
以上詳細に説明したように、本発明のコンテンツ再生装置は、音声信号処理手段及び制御手段を備え、他方、本発明のコンテンツ再生方法は、音声信号処理工程及び制御工程を備えるので、視聴空間における視聴者からディスプレイまでの距離と、スピーカ間距離との比率が、プロの視聴空間における奨励比率、例えば黄金比になるように画像出力及び音声出力を実行可能となる。更に、視聴者に対して、広がり感が向上される音声信号を再生することで、臨場感やサラウンド効果ある視聴空間をダイナミックに再現すると共に、聴覚を通じて美感を起こさせること可能となる。
As described above in detail, the content reproduction apparatus of the present invention includes the audio signal processing means and the control means, while the content reproduction method of the present invention includes the audio signal processing step and the control step. Image output and audio output can be executed such that the ratio between the distance from the viewer to the display and the distance between the speakers becomes an encouraged ratio in the professional viewing space, for example, the golden ratio. Furthermore, by reproducing an audio signal that improves the sense of breadth for the viewer, it is possible to dynamically reproduce a viewing space with a sense of presence and a surround effect, and to create a sense of beauty through hearing.
1…コンテンツ再生装置、2…プレーヤー、3…ディスク、5…視聴者、11…ディスプレイ、12a、12b…スピーカ、13…メモリ、14…距離特定部、15…制御部、16…音声信号処理部、17…画像信号生成部、18…音声信号生成部
DESCRIPTION OF SYMBOLS 1 ... Content reproduction apparatus, 2 ... Player, 3 ... Disc, 5 ... Viewer, 11 ... Display, 12a, 12b ... Speaker, 13 ... Memory, 14 ... Distance specific | specification part, 15 ... Control part, 16 ... Audio | voice signal processing part , 17 ... Image signal generator, 18 ... Audio signal generator
以下、本発明のコンテンツ再生装置及び方法に係る各実施形態を図面に基づいて説明する。
Hereinafter, embodiments according to the content reproduction apparatus and method of the present invention will be described with reference to the drawings.
本発明の実施形態について、図1乃至図6を参照して説明する。
Embodiments of the present invention will be described with reference to FIGS.
先ず、先ず、実施形態に係るコンテンツ再生装置1の全体構成について図1を参照して説明する。ここに図1は、実施形態に係るコンテンツ再生装置1の構成を示すブロック図である。
First, the overall configuration of the content reproduction apparatus 1 according to the embodiment will be described with reference to FIG. FIG. 1 is a block diagram showing the configuration of the content reproduction apparatus 1 according to the embodiment.
図1において、コンテンツ再生装置1は、例えばテレビジョン装置であり、ディスプレイ11、一対のスピーカ12a、12b、メモリ13、距離特定部14、制御部15、音声信号処理部16、画像信号生成部17及び音声信号生成部18を備えて構成されている。
In FIG. 1, a content reproduction apparatus 1 is, for example, a television apparatus, and includes a display 11, a pair of speakers 12a and 12b, a memory 13, a distance specifying unit 14, a control unit 15, an audio signal processing unit 16, and an image signal generation unit 17. And an audio signal generator 18.
図1に示すように、コンテンツ再生装置1には、その動作時には先ず、DVD等のディスク3からピックアップ部などを含んでなるプレーヤー2にて読み出された画像信号及び音声信号を含むコンテンツ信号が供給される。ここにディスク3の種類としては、記録層の数に限らず、BlueRayディスク、HD-DVD、DVD、CD等の多様な種類が考えられる。いずれにせよ、ディスク3は、プレーヤー2で再生しようとするAVコンテンツなどの情報を有している。コンテンツ再生装置1によって、供給された画像信号及び音声信号が処理されて、更にディスプレイ11及び一対のスピーカ12a、12bによって、視聴者5に対して出力される。
As shown in FIG. 1, the content playback apparatus 1 first receives a content signal including an image signal and an audio signal read by a player 2 including a pickup unit from a disk 3 such as a DVD during operation. Supplied. Here, the type of the disc 3 is not limited to the number of recording layers, and various types such as a BlueRay disc, HD-DVD, DVD, and CD can be considered. In any case, the disc 3 has information such as AV contents to be reproduced by the player 2. The supplied image signal and audio signal are processed by the content reproduction apparatus 1 and further output to the viewer 5 by the display 11 and the pair of speakers 12a and 12b.
尚、一対のスピーカ12a、12bは、フロントライトスピーカ及びフロントレフトスピーカであり、典型的には、これらのスピーカに対して、ステレオサウンド用の右音声信号及び左音声信号が夫々入力される。これら以外のリアスピーカやスーパーウーハが接続されてもよく、その場合、これらのスピーカに対して、5.1チャンネルサラウンド用の音声信号が夫々入力される。
The pair of speakers 12a and 12b are a front right speaker and a front left speaker. Typically, a right audio signal and a left audio signal for stereo sound are input to these speakers, respectively. Rear speakers and super woofers other than these may be connected, and in this case, 5.1-channel surround sound signals are respectively input to these speakers.
メモリ13は、本発明に係る「格納手段」の一例であり、プロの視聴空間におけるディスプレイ11に表示される画像の横幅Wsdと、該横幅Wsdに対して奨励される理想的な視聴位置からディスプレイ11までの距離Wdoとの奨励比率、例えば黄金比、即ちWsd/Wdoの値を予め格納している。メモリ13に格納されている比率については、後述の図2で詳述することとする。
The memory 13 is an example of the “storage means” according to the present invention, and displays the horizontal width Wsd of the image displayed on the display 11 in the professional viewing space and the ideal viewing position recommended for the horizontal width Wsd. An incentive ratio with a distance Wdo up to 11, for example, a golden ratio, that is, a value of Wsd / Wdo is stored in advance. The ratio stored in the memory 13 will be described in detail later with reference to FIG.
距離特定部14は、本発明に係る「距離特定手段」の一例であり、ディスプレイ11により画像の出力及びスピーカ12a、12bより音声の出力に先立って、視聴者5からディスプレイ11までの距離Wdxを特定する。
The distance specifying unit 14 is an example of the “distance specifying unit” according to the present invention, and calculates the distance Wdx from the viewer 5 to the display 11 prior to outputting an image from the display 11 and outputting sound from the speakers 12a and 12b. Identify.
特定する方法として、距離特定部14は、各スピーカ12a、12bから測定用の音声信号、例えばピンクノイズやホワイトノイズを出力し、視聴者5の位置に配置されたマイク等の収音手段における測定用信号の検出結果から距離Wdxを算出する、即ち間接的に視聴者5からディスプレイ11までの距離Wdxを測定する。距離特定部14の動作については、後述の図3で詳述することとする。
As a specifying method, the distance specifying unit 14 outputs a sound signal for measurement, for example, pink noise or white noise, from each of the speakers 12a and 12b, and performs measurement in sound collecting means such as a microphone disposed at the position of the viewer 5. The distance Wdx is calculated from the detection result of the signal for use, that is, the distance Wdx from the viewer 5 to the display 11 is indirectly measured. The operation of the distance specifying unit 14 will be described in detail later with reference to FIG.
制御部15は、本発明に係る「制御手段」の一例であり、例えばプロセッサ、メモリ等を備えた構成されている。
The control unit 15 is an example of the “control unit” according to the present invention, and includes, for example, a processor, a memory, and the like.
制御部15は、先ずメモリ13で格納された例えば黄金比であるディスプレイ11に表示される画像の横幅をWsd/該横幅Wsdに対して奨励される理想的な視聴位置からディスプレイ11までの距離をWdoの値を読み出す。そして、制御部15は距離特定部14によって特定された距離をWdx、スピーカ12a、12b間の距離をWsp’とし、Wsd/Wdoの値に、Wsp’/Wdxの値が近付く側に、スピーカ間距離Wsp’を増減させるように、音声信号処理部16、画像信号生成部17及び音声信号生成部18を制御する。制御部15の動作については、後述の図3及び4で詳述することとする。
First, the control unit 15 sets the horizontal width of the image stored on the display 11 stored in the memory 13, for example, the golden ratio to Wsd / the distance from the ideal viewing position recommended for the horizontal width Wsd to the display 11. Read the value of Wdo. Then, the control unit 15 sets the distance specified by the distance specifying unit 14 as Wdx, and sets the distance between the speakers 12a and 12b as Wsp '. The audio signal processing unit 16, the image signal generation unit 17, and the audio signal generation unit 18 are controlled so as to increase or decrease the distance Wsp ′. The operation of the control unit 15 will be described in detail with reference to FIGS.
音声信号処理部16は、本発明に係る「音声信号処理手段」の一例であり、例えばプロセッサ、メモリ、コンバータ等を備えて構成されている。音声信号処理部16は、プレーヤー2から供給された音声信号を信号処理することで、視聴者5による聴覚上で擬似的に一対のスピーカ12a、12b間のスピーカ間距離Wsp’を増減可能である。即ち、音声信号処理部16は、音声信号をワイド処理するワイド処理部であり、フィルタ、加算器などを備え、クロストークキャンセルと呼ばれる方式で再生される音声信号の音像を広げる処理を行う。信号処理された音声信号が一対のスピーカ12a、12bに供給される。音声信号処理部16については、後述の図5で詳述することとする。
The audio signal processing unit 16 is an example of the “audio signal processing means” according to the present invention, and includes, for example, a processor, a memory, a converter, and the like. The audio signal processing unit 16 can process the audio signal supplied from the player 2 to increase or decrease the speaker-to-speaker distance Wsp ′ between the pair of speakers 12a and 12b in an auditory sense by the viewer 5. . That is, the audio signal processing unit 16 is a wide processing unit that performs a wide processing on the audio signal, and includes a filter, an adder, and the like, and performs a process of expanding the sound image of the audio signal reproduced by a method called crosstalk cancellation. The audio signal subjected to signal processing is supplied to the pair of speakers 12a and 12b. The audio signal processing unit 16 will be described in detail later with reference to FIG.
画像信号生成部17は、本発明に係る「画像信号生成手段」の一例である。第1所定距離Wdx’と横幅Wsdとの比率が黄金比にすることに応じて、第1所定距離Wdx’が定められる。すると、画像信号生成部17は、距離Wdxと第1所定距離Wdx’との差を小さくする方向へ、視聴者5を動かすことを催促する旨の画像信号を生成する。生成された画像信号が、ディスプレイ11に供給され出力されることで、第1所定距離との差を小さくする方向へ、視聴者5を動かすことを催促する。
The image signal generator 17 is an example of the “image signal generator” according to the present invention. The first predetermined distance Wdx 'is determined in accordance with the ratio of the first predetermined distance Wdx' to the lateral width Wsd being the golden ratio. Then, the image signal generation unit 17 generates an image signal for prompting the viewer 5 to move in the direction of reducing the difference between the distance Wdx and the first predetermined distance Wdx ′. The generated image signal is supplied to the display 11 and output, thereby prompting the viewer 5 to move in the direction of reducing the difference from the first predetermined distance.
音声信号生成部18は、本発明に係る「音声信号生成手段」の一例である。音声信号生成部18は、画像信号生成部17と同様、距離Wdxと第1所定距離Wdx’との差を小さくする方向へ、視聴者5を動かすことを催促する旨の音声信号が生成する。生成された音声信号が、一対のスピーカ12a、12bに供給され出力されることで、第1所定距離との差を小さくする方向へ、視聴者5を動かすことを催促する。
The audio signal generator 18 is an example of the “audio signal generator” according to the present invention. Similar to the image signal generation unit 17, the audio signal generation unit 18 generates an audio signal that prompts the viewer 5 to move in the direction of reducing the difference between the distance Wdx and the first predetermined distance Wdx ′. The generated audio signal is supplied to and output from the pair of speakers 12a and 12b, thereby prompting the viewer 5 to move in a direction that reduces the difference from the first predetermined distance.
ディスプレイ11は、例えばプラズマディスプレイ、液晶ディスプレイ、プロジェクタ、或いはモニタのように画像信号を映像として出力することができる装置であり、プレーヤー11から供給された画像信号、及び画像信号生成部17によって生成された画像信号に応じて、視聴者5に対して画像信号を画像出力する。
The display 11 is a device that can output an image signal as an image, such as a plasma display, a liquid crystal display, a projector, or a monitor, and is generated by the image signal supplied from the player 11 and the image signal generator 17. The image signal is output to the viewer 5 in accordance with the received image signal.
一対のスピーカ12a、12bは、供給され信号処理された音声信号、及び音声信号生成部18によって生成された音声信号に応じて、視聴者5に対して音声信号を音声出力する。
The pair of speakers 12 a and 12 b outputs the audio signal to the viewer 5 in accordance with the supplied audio signal and the audio signal generated by the audio signal generator 18.
以上の構成によって、視聴空間における視聴者からディスプレイまでの距離と、スピーカ間距離との比率が、プロの視聴空間における奨励比率、例えば黄金比になるようにできる。更に、視聴者に対して、広がり感が向上される音声信号を再生することで、臨場感やサラウンド効果ある視聴空間をダイナミックに再現すると共に、聴覚を通じて美感を起こさせることが可能となる。しかも、視聴者が専門的な知識を有することが必要とならないし、煩雑な操作をすることなく迫力や臨場感のある高品位の視聴空間を体感することができる。
With the above configuration, the ratio of the distance from the viewer to the display in the viewing space and the distance between the speakers can be an encouraged ratio in the professional viewing space, for example, the golden ratio. Furthermore, by reproducing an audio signal that improves the sense of breadth for the viewer, it is possible to dynamically reproduce the viewing space with a sense of presence and surround effect, and to create a sense of beauty through hearing. In addition, it is not necessary for the viewer to have specialized knowledge, and it is possible to experience a high-quality viewing space with powerfulness and presence without complicated operations.
特に、ディスプレイに表示される画像の幅までも黄金比の関係を満たすように設定することは、民生用のディスプレイのサイズからして困難であることからすれば実践可能である次善策を提供する本発明は、大変有利である。
In particular, it is difficult to set the relationship of the golden ratio even for the width of the image displayed on the display because of the size of the consumer display. The present invention is very advantageous.
次に、メモリ13に格納されている比率について、図2を参照して説明する。ここに図2は、実施形態に係るプロの視聴空間を示す平面図である。
Next, the ratio stored in the memory 13 will be described with reference to FIG. FIG. 2 is a plan view showing a professional viewing space according to the embodiment.
図2に示すように、プロのサウンドミキサー100が、プロのディスプレイ装置101及びスピーカ102a、102bを利用することで、AVコンテンツをミキシングする。一対のスピーカ102a、102bは、ディスプレイ101の両サイドに取り付けられている。
As shown in FIG. 2, a professional sound mixer 100 uses a professional display device 101 and speakers 102a and 102b to mix AV content. A pair of speakers 102 a and 102 b are attached to both sides of the display 101.
この際、プロの視聴空間におけるディスプレイ101に表示される画像の横幅をWsdとし、サウンドミキサー100とディスプレイ101との間の距離、即ち該横幅Wsdに対して奨励される理想的な視聴位置からディスプレイ101までの距離をWdoとする。Wsd/Wdoの値、通常に美感を有している黄金比が、メモリ13に予め格納されている。スピーカ12a、12b間の実際距離Wspもメモリ13に予め格納されている。
At this time, the horizontal width of the image displayed on the display 101 in the professional viewing space is Wsd, and the distance between the sound mixer 100 and the display 101, that is, the ideal viewing position recommended for the horizontal width Wsd is displayed. Let the distance to 101 be Wdo. The value of Wsd / Wdo, the golden ratio that normally has aesthetics, is stored in the memory 13 in advance. The actual distance Wsp between the speakers 12a and 12b is also stored in the memory 13 in advance.
この構成によれば、メモリ13に格納されている黄金比である又は黄金比に近付けられている、Wsd/Wdoの値及びWspが制御部15によって読み出されて、更に制御部15に処理されることで、臨場感のある視聴空間を提供することが可能である。
According to this configuration, the value of Wsd / Wdo and Wsp, which are the golden ratio stored in the memory 13 or close to the golden ratio, are read by the control unit 15 and further processed by the control unit 15. This makes it possible to provide a realistic viewing space.
次に、距離特定部14の処理について、図3を参照して説明する。ここに図3は実施形態に係る音声信号処理部16が動作する時の視聴空間を示す平面図である。
Next, processing of the distance specifying unit 14 will be described with reference to FIG. FIG. 3 is a plan view showing a viewing space when the audio signal processing unit 16 according to the embodiment operates.
図3に示すように、視聴者5に対して、ディスプレイ11が供給された画像信号を出力し、スピーカ12a、12bが供給された音声信号を出力する。一対のスピーカ12a、12bは、ディスプレイ11からの距離が固定されると共に、ディスプレイ11の両サイドに取り付けられている。
As shown in FIG. 3, the image signal supplied with the display 11 is output to the viewer 5, and the audio signal supplied with the speakers 12a and 12b is output. The pair of speakers 12 a and 12 b are fixed at a distance from the display 11 and are attached to both sides of the display 11.
距離特定部14は、先に視聴者5からディスプレイ11の両側にある一対のスピーカ12a、12bまでの距離Wsplx及びWsprxを測定して、スピーカ12a、12b間の実際距離Wsp、距離Wsplx及びWsprxによって距離Wdxを算出する。
The distance specifying unit 14 first measures the distances Wsplx and Wsprx from the viewer 5 to the pair of speakers 12a and 12b on both sides of the display 11, and uses the actual distances Wsp and the distances Wsplx and Wsprx between the speakers 12a and 12b. A distance Wdx is calculated.
具体的には、視聴者5の位置に収音手段とするマイク6が置かれて、一旦コンテンツ再生装置1が、距離測定モードに設定されると、スピーカ12a、12bから測定用の音声信号が発信される。すると、マイク6によって、発信された測定用の音声信号が収音される。収音された音声信号がマイク6に拾われるまでの時間に基づいて、一対のスピーカ12a、12bからマイク6までの距離、即ち視聴者5からディスプレイ11の両側にある一対のスピーカ12a、12bまでの距離Wsplx及びWsprxが測定される。
Specifically, when a microphone 6 serving as a sound collection unit is placed at the position of the viewer 5 and the content reproduction apparatus 1 is once set to the distance measurement mode, an audio signal for measurement is output from the speakers 12a and 12b. Called. Then, the transmitted sound signal for measurement is picked up by the microphone 6. Based on the time until the collected sound signal is picked up by the microphone 6, the distance from the pair of speakers 12 a and 12 b to the microphone 6, that is, from the viewer 5 to the pair of speakers 12 a and 12 b on both sides of the display 11. Distances Wsplx and Wsprx are measured.
そして、メモリ13から読み出されたスピーカ12a、12b間の実際距離Wsp、距離Wsplx及びWsprxによって、距離Wdxが算出される。
The distance Wdx is calculated from the actual distance Wsp, the distances Wsplx and Wsprx between the speakers 12a and 12b read from the memory 13.
このように構成すれば、ユーザの負担を減らすことができ、視聴者からディスプレイまでの正確な距離を簡便且つ迅速に算出可能となる。
With this configuration, the burden on the user can be reduced, and the accurate distance from the viewer to the display can be calculated easily and quickly.
次に、制御部15の処理について、図3及び4を参照して説明する。ここに図4は実施形態に係る画像信号生成部17及び音声信号生成部18が動作する時の視聴空間を示す平面図である。
Next, processing of the control unit 15 will be described with reference to FIGS. FIG. 4 is a plan view showing a viewing space when the image signal generation unit 17 and the audio signal generation unit 18 according to the embodiment operate.
制御部15は、プロの視聴空間におけるWsd/Wdoが現実の視聴空間におけるWsp’/Wdxより大きいと判別される場合には、Wsp’/Wdxの値をWsd/Wdoの値に近付けるため、仮想的なスピーカ間距離Wsp’を増加させるように、音声信号処理部16を制御する。
When it is determined that Wsd / Wdo in the professional viewing space is greater than Wsp ′ / Wdx in the actual viewing space, the control unit 15 brings the value of Wsp ′ / Wdx closer to the value of Wsd / Wdo. The audio signal processing unit 16 is controlled so as to increase the typical inter-speaker distance Wsp ′.
具体的には、図3に示すように、音声信号処理部16によって音声信号がワイド化されることで、視聴者5による聴覚上で擬似的に一対のスピーカ12a、12b間のスピーカ間距離Wsp’を増大する。即ち、聴覚上で一対のスピーカ12a、12bの位置を夫々模擬的に22a、22bへ移動させる。
Specifically, as shown in FIG. 3, when the audio signal is widened by the audio signal processing unit 16, the speaker-to-speaker distance Wsp between the pair of speakers 12a and 12b is artificially heard by the viewer 5. 'Increase. That is, the position of the pair of speakers 12a and 12b is moved to 22a and 22b in a simulated manner.
逆に、プロの視聴空間におけるWsd/Wdoが現実の視聴空間におけるWsp’/Wdxより大きいではない場合に、Wsp’/Wdxの値をWsd/Wdoの値に近付けるため、視聴者5を奨励される理想的な視聴位置、例えば黄金比になる位置へ動かすことを催促させるように、画像信号生成部17及び音声信号生成部18を制御する。
Conversely, if Wsd / Wdo in the professional viewing space is not greater than Wsp ′ / Wdx in the actual viewing space, viewer 5 is encouraged to bring the value of Wsp ′ / Wdx closer to the value of Wsd / Wdo. The image signal generation unit 17 and the audio signal generation unit 18 are controlled so as to prompt the user to move to an ideal viewing position, for example, a position where the golden ratio is achieved.
具体的には、図4に示すように、先ず、第1所定距離Wdx’と横幅Wsdとの比率が黄金比にすることに応じて、第1所定距離Wdx’が算出される。次に、算出された第1所定距離Wdx’に応じて、距離Wdxと第1所定距離Wdx’との差を小さくする。例えば第1所定距離Wdx’と距離Wdxとの差が15センチとすると、画像信号生成部17によって、例えば「後ろへ15センチ動かしてください」の文字の画像信号が生成されて、生成された画像信号がディスプレイ11によってスクリーンで表示されると共に、音声信号生成部18によって、例えば「後ろへ15センチ動かしてください」の音声信号が生成されて、生成された音声信号がスピーカ12a、12bによって出力される。よって、視聴者5をディスプレイ11から第1所定距離Wdx’までの位置5a、即ち黄金比になる場所へ動かすように催促する。
Specifically, as shown in FIG. 4, first, the first predetermined distance Wdx 'is calculated in accordance with the ratio of the first predetermined distance Wdx' to the lateral width Wsd being the golden ratio. Next, the difference between the distance Wdx and the first predetermined distance Wdx ′ is reduced according to the calculated first predetermined distance Wdx ′. For example, if the difference between the first predetermined distance Wdx ′ and the distance Wdx is 15 centimeters, the image signal generation unit 17 generates an image signal of, for example, “Please move back 15 centimeters” and the generated image The signal is displayed on the screen by the display 11, and the audio signal generation unit 18 generates an audio signal of, for example, “Please move 15 centimeters backward”, and the generated audio signal is output by the speakers 12a and 12b. The Therefore, the viewer 5 is prompted to move to the position 5a from the display 11 to the first predetermined distance Wdx ', that is, the place where the golden ratio is achieved.
従って、視聴者が専門的な知識を有することが必要とならないし、煩雑な操作をすることなく、臨場感のある視聴空間を体感することができる。
Therefore, it is not necessary for the viewer to have specialized knowledge, and it is possible to experience a realistic viewing space without performing complicated operations.
更に、音声信号処理部16の処理について、図5を参照して説明する。ここに図5は、実施形態に係る音声信号処理部16を示すブロック図である。
Furthermore, the processing of the audio signal processing unit 16 will be described with reference to FIG. FIG. 5 is a block diagram showing the audio signal processing unit 16 according to the embodiment.
図5において、音声信号処理部16は、クリップ防止部16a、エフェクター16b、ゲイン制御部16c、及び加算部16dを備えている。
In FIG. 5, the audio signal processing unit 16 includes a clip prevention unit 16a, an effector 16b, a gain control unit 16c, and an addition unit 16d.
クリップ防止部16aは、例えばクリップ検出回路などが設けられており、クリップ検出回路によって、入力された音声信号のクリップ状態を検出して、ゲイン制御部16cのゲイン調整抵抗の抵抗値を大きくするように自動的に作用し、音声信号処理部16に入力される音声信号のレベルが抑えられる。よって、一対のスピーカ12a、12bから出力される音声の歪みが阻止される。クリップ防止部16aによって処理された音声信号が、ワイド処理をするためエフェクター16bへ送信されると共に、加算をするため加算部16dへも送信される。
The clip prevention unit 16a is provided with, for example, a clip detection circuit. The clip detection circuit detects the clip state of the input audio signal and increases the resistance value of the gain adjustment resistor of the gain control unit 16c. The level of the audio signal input to the audio signal processing unit 16 is suppressed automatically. Therefore, distortion of sound output from the pair of speakers 12a and 12b is prevented. The audio signal processed by the clip prevention unit 16a is transmitted to the effector 16b for wide processing and also transmitted to the addition unit 16d for addition.
エフェクター16bは、原音とは異なった音声に変化させる装置であり、音声信号の音圧レベルや出力されるタイミング等の特性に変更を加える。例えば、2chの音声信号が入力される場合、エフェクター16bは、2chの各chに出力タイミング、音圧等の特性に変更を加える信号処理を実行するのである。
The effector 16b is a device that changes the sound to be different from the original sound, and changes the characteristics such as the sound pressure level of the sound signal and the output timing. For example, when a 2ch audio signal is input, the effector 16b executes signal processing for changing characteristics such as output timing and sound pressure for each of the 2ch channels.
ゲイン制御部16cは、エフェクター16bによって処理された音声信号に対して、ゲインをあげるように制御する。
The gain controller 16c controls the audio signal processed by the effector 16b to increase the gain.
加算部16dは、クリップ防止部16aから送信されたワイド処理されないまま、即ちオリジナル音声信号と、エフェクター16aによってワイド処理された音声信号とを加算する。そして、音声信号処理部16によって信号処理された各chに対応する音声信号が、一対のスピーカ12a、12bに供給され、各スピーカから別個独立に出力される。
The adding unit 16d adds the original audio signal transmitted from the clip prevention unit 16a without being subjected to wide processing, that is, the audio signal subjected to wide processing by the effector 16a. Then, the audio signal corresponding to each channel subjected to the signal processing by the audio signal processing unit 16 is supplied to the pair of speakers 12a and 12b, and is output separately from each speaker.
次に、図6を参照して、コンテンツ再生装置におけるコンテンツ再生方法について説明する。ここに図6は、本発明の実施形態に係るコンテンツ再生方法について示すフローチャートである。
Next, a content reproduction method in the content reproduction apparatus will be described with reference to FIG. FIG. 6 is a flowchart showing the content reproduction method according to the embodiment of the present invention.
図6において、先ず、本発明に係る「Wsp及びWsd/Wdoを読み出す」の一例として、制御部15によって、メモリ13(図1参照)に格納されているプロの視聴空間におけるディスプレイ11に表示される画像の横幅Wsdと、該横幅Wsdに対して奨励される理想的な視聴位置からディスプレイ11までの距離Wdoとの奨励比率、例えば黄金比が読み出される(ステップS101)。
In FIG. 6, first, as an example of “reading Wsp and Wsd / Wdo” according to the present invention, the control unit 15 displays on the display 11 in the professional viewing space stored in the memory 13 (see FIG. 1). An incentive ratio, for example, a golden ratio, between the horizontal width Wsd of the image to be displayed and the distance Wdo from the ideal viewing position recommended for the horizontal width Wsd to the display 11 is read (step S101).
次に、本発明に係る「Wsplx及びWsprxを測定する」の一例として、距離特定部14(図3参照)によって、視聴者5からディスプレイ11の両側にある一対のスピーカ12a、12bまでの距離Wsplx及びWsprxが測定される。(ステップS102)。
Next, as an example of “measuring Wsplx and Wsprx” according to the present invention, the distance Wsplx from the viewer 5 to the pair of speakers 12a and 12b on both sides of the display 11 by the distance specifying unit 14 (see FIG. 3). And Wsprx are measured. (Step S102).
すると、本発明に係る「Wdxを算出する」の一例として、メモリ13から読み出されたスピーカ12a、12b間の実際距離Wsp、並びに距離測定部で測定された距離Wsplx及びWsprxによって距離Wdxが算出される。(ステップS103)。
Then, as an example of “calculating Wdx” according to the present invention, the distance Wdx is calculated from the actual distance Wsp between the speakers 12a and 12b read from the memory 13 and the distances Wsplx and Wsprx measured by the distance measuring unit. Is done. (Step S103).
次に、本発明に係る「Wsd/Wdo>Wsp’/Wdx?」の一例として、制御部15によって、読み出された横幅Wsd/距離Wdoの値が、算出されたWsp’/Wdxの値より大きいか否かが判別される。(ステップS104)。
Next, as an example of “Wsd / Wdo> Wsp ′ / Wdx?” According to the present invention, the value of the lateral width Wsd / distance Wdo read out by the control unit 15 is calculated from the calculated value of Wsp ′ / Wdx. It is determined whether or not it is larger. (Step S104).
次に、Wsd/WdoはWsp’/Wdxより大きいと判別される場合(ステップS104の判別の結果:Yes)、本発明に係る「Wsp’を増加させるように制御する」の一例として、制御部15によって、Wsp’/Wdxの値をWsd/Wdoの値に近付けるため、仮想的なスピーカ12a、12b間の距離Wsp’を増加させるように、音声信号処理部16が制御される(ステップS105)。
Next, when it is determined that Wsd / Wdo is greater than Wsp ′ / Wdx (the result of determination in step S104: Yes), as an example of “controlling to increase Wsp ′” according to the present invention, the control unit 15, the audio signal processing unit 16 is controlled to increase the distance Wsp ′ between the virtual speakers 12a and 12b in order to bring the value of Wsp ′ / Wdx closer to the value of Wsd / Wdo (step S105). .
次に、本発明に係る「音声信号をワイド処理する」の一例として、音声信号処理部16によって、供給された音声信号がワイド処理されて、ワイド処理された音声信号が次のスピーカ12a、12bへ送信される(ステップS106)。
Next, as an example of “widely processing an audio signal” according to the present invention, the supplied audio signal is subjected to wide processing by the audio signal processing unit 16, and the audio signal subjected to the wide processing is subjected to the next speakers 12 a and 12 b. (Step S106).
次に、本発明に係る「画像信号を出力する」の一例として、ディスプレイ11によって受信された画像信号が、画像出力される。(ステップS107)。
Next, as an example of “outputting an image signal” according to the present invention, the image signal received by the display 11 is output as an image. (Step S107).
次に、画像出力と並行して又は相前後して、本発明に係る「音声信号を出力する」の一例として、一対のスピーカ12a、12bによって、ワイド処理され受信された音声信号が音声出力される(ステップS108)。
Next, in parallel with or in parallel with the image output, as an example of “outputting an audio signal” according to the present invention, an audio signal that has been subjected to wide processing by the pair of speakers 12a and 12b is output as an audio signal. (Step S108).
次に、ステップS104に戻り、Wsd/WdoはWsp’/Wdxより大きいではないと判別される場合(ステップS104の判別の結果:No)、本発明に係る「視聴者を動かすことを催促する旨の画像信号を生成する」の一例として、画像信号生成部17によって、視聴者5を奨励される理想的な視聴位置、例えば黄金比になる位置へ動かすことを催促させるように(図4参照)、画像信号が生成されて、画像出力するためディスプレイ11へ送信される(ステップS109)。
Next, returning to step S104, if it is determined that Wsd / Wdo is not greater than Wsp ′ / Wdx (the result of determination in step S104: No), the “prompt to move the viewer” according to the present invention. As an example of “generating an image signal of”, the image signal generation unit 17 prompts the viewer 5 to move the viewer 5 to an ideal viewing position encouraged, for example, a position where the golden ratio is achieved (see FIG. 4). An image signal is generated and transmitted to the display 11 for image output (step S109).
上述の視聴者を動かすことを催促する旨の画像信号を生成する(ステップS108)と並行して又は相前後して、本発明に係る「視聴者を動かすことを催促する旨の音声信号を生成する」の一例として、音声信号生成部18によって、視聴者5を奨励される理想的な視聴位置、例えば黄金比になる位置へ動かすことを催促させるように(図4参照)、音声信号が生成されて、音声出力するため一対のスピーカ12a、12bへ送信される(ステップS110)。
In parallel with or in parallel with the generation of the image signal that prompts the viewer to move (step S108), the voice signal that prompts the viewer to move is generated. As an example of “to do”, an audio signal is generated by the audio signal generation unit 18 so as to prompt the viewer 5 to move to an ideal viewing position encouraged, for example, a position where the golden ratio is achieved (see FIG. 4). Then, it is transmitted to the pair of speakers 12a and 12b for outputting sound (step S110).
次に、本発明に係る「画像信号を出力する」の一例として、ディスプレイ11によって、生成され受信された画像信号が、画像出力される。(ステップS107)。
Next, as an example of “outputting an image signal” according to the present invention, an image signal generated and received by the display 11 is output as an image. (Step S107).
次に、画像出力と並行して又は相前後して、本発明に係る「音声信号を出力する」の一例として、一対のスピーカ12a、12bによって、生成され受信された音声信号が音声出力される(ステップS108)。
Next, in parallel with or before and after the image output, as an example of “output an audio signal” according to the present invention, an audio signal generated and received by the pair of speakers 12a and 12b is output as audio. (Step S108).
以上の一連の処理によって、視聴空間における視聴者からディスプレイまでの距離と、スピーカ間距離との比率が、プロの視聴空間における奨励比率、例えば黄金比になる。更に、視聴者に対して、広がり感が向上される音声信号を再生することで、臨場感やサラウンド効果ある視聴空間をダイナミックに再現すると共に、聴覚を通じて美感を起こさせることが可能となる。しかも、視聴者が専門的な知識を有することが必要とならないし、煩雑な操作をすることなく迫力や臨場感のある高品位の視聴空間を体感することができる。
Through the above series of processing, the ratio of the distance from the viewer to the display in the viewing space and the distance between the speakers becomes the encouragement ratio in the professional viewing space, for example, the golden ratio. Furthermore, by reproducing an audio signal that improves the sense of breadth for the viewer, it is possible to dynamically reproduce the viewing space with a sense of presence and surround effect, and to create a sense of beauty through hearing. In addition, it is not necessary for the viewer to have specialized knowledge, and it is possible to experience a high-quality viewing space with powerfulness and presence without complicated operations.
尚、本発明は、上述した実施形態に限られるものではなく、請求の範囲及び明細書全体から読み取れる発明の要旨、或いは思想に反しない範囲で適宜変更可能であり、そのような変更を伴うコンテンツ再生装置及び方法もまた、本発明の技術的範囲に含まれるものである。
Note that the present invention is not limited to the above-described embodiments, and can be appropriately changed within the scope of the invention or the concept that can be read from the entire claims and the specification, and content accompanying such changes. A playback apparatus and method are also included in the technical scope of the present invention.
本発明は、例えば光ディスク・プレーヤーで読み取られた画像信号及び音声信号を含むコンテンツ信号を、例えばスピーカ付きのフラットディスプレイ、AVシステム、テレビジョン装置などから再生するためのコンテンツ再生装置及び方法の技術分野に利用可能である。
The present invention relates to a technical field of a content reproduction apparatus and method for reproducing a content signal including an image signal and an audio signal read by an optical disc player, for example, from a flat display with a speaker, an AV system, a television apparatus, etc. Is available.
Claims (9)
- 画像信号が供給され且つ該供給された画像信号に応じた画像出力を行うディスプレイと、
該ディスプレイの両サイドに前記ディスプレイからの距離が固定される形で取り付けられ、音声信号が供給され且つ該供給された音声信号に応じた音声出力を行う一対のスピーカと、
視聴者から前記ディスプレイまでの距離を特定する距離特定手段と、
前記音声信号を信号処理することで、前記視聴者による聴覚上で擬似的に前記一対のスピーカ間のスピーカ間距離を増減可能であり、前記信号処理された音声信号を前記一対のスピーカに供給する音声信号処理手段と、
前記ディスプレイに表示される画像の横幅をWsd、該横幅Wsdに対して奨励される理想的な視聴位置から前記ディスプレイまでの距離をWdo、前記特定された距離をWdx、前記スピーカ間距離をWsp’とするとき、Wsd/Wdoの値に、Wsp’/Wdxの値が近付く側に、前記スピーカ間距離Wsp’を増減させるように前記音声信号処理手段を制御する制御手段と
を備えることを特徴とするコンテンツ再生装置。 A display which is supplied with an image signal and outputs an image corresponding to the supplied image signal;
A pair of speakers that are attached to both sides of the display so that the distance from the display is fixed, to which an audio signal is supplied and that outputs an audio corresponding to the supplied audio signal;
Distance specifying means for specifying the distance from the viewer to the display;
By processing the audio signal, the distance between the speakers between the pair of speakers can be artificially increased or decreased on hearing by the viewer, and the signal-processed audio signals are supplied to the pair of speakers. Audio signal processing means;
The horizontal width of the image displayed on the display is Wsd, the distance from the ideal viewing position recommended for the horizontal width Wsd to the display is Wdo, the specified distance is Wdx, and the distance between the speakers is Wsp ′. Control means for controlling the audio signal processing means so as to increase or decrease the inter-speaker distance Wsp 'on the side where the value of Wsp' / Wdx approaches the value of Wsd / Wdo. Content playback apparatus. - 前記距離特定手段は、前記表示出力及び前記音声出力に先立って、距離測定モードにて前記視聴者の位置に置かれたマイクまでの距離を、前記一対のスピーカからの測定用音声が前記マイクに拾われるまでの時間に基づいて、前記距離を測定することを特徴とする請求の範囲第1項に記載のコンテンツ再生装置。 Prior to the display output and the audio output, the distance specifying means indicates the distance to the microphone placed at the viewer's position in the distance measurement mode, and the measurement audio from the pair of speakers is applied to the microphone. 2. The content reproduction apparatus according to claim 1, wherein the distance is measured based on a time until it is picked up.
- 前記距離特定手段は、前記表示出力及び前記音声出力に先立って、予め測定手段で測定された前記視聴者から前記ディスプレイまでの距離情報を入力可能に構成されており、該入力された距離情報により示される距離として前記距離を特定することを特徴とする請求の範囲第1項に記載のコンテンツ再生装置。 Prior to the display output and the audio output, the distance specifying means is configured to be able to input distance information from the viewer to the display, which is measured in advance by the measuring means, and based on the input distance information The content reproducing apparatus according to claim 1, wherein the distance is specified as the indicated distance.
- 前記Wsd/Wdoの値を予め格納する格納手段を更に備え、
前記制御手段は、前記格納されたWsd/Wdoの値を読み出し、前記読み出されたWsd/Wdoの値に、前記Wsp’/Wdxの値が近付く側に、前記スピーカ間距離Wsp’を増減させるように前記音声信号処理手段を制御する
ことを特徴とする請求の範囲第1項に記載のコンテンツ再生装置。 Storage means for storing the value of Wsd / Wdo in advance;
The control means reads the stored Wsd / Wdo value, and increases or decreases the inter-speaker distance Wsp ′ so that the Wsp ′ / Wdx value approaches the read Wsd / Wdo value. The content reproduction apparatus according to claim 1, wherein the audio signal processing means is controlled as described above. - 前記制御手段は、
前記Wsd/Wdoの値が前記Wsp’/Wdxより大きい場合に、前記スピーカ間距離Wsp’を増加させるように前記音声信号処理手段を制御し、
前記Wsd/Wdoの値が前記Wsp’/Wdxより小さい場合に、前記スピーカ間距離Wsp’を減少させる又は増減させないように前記音声信号処理手段を制御する
ことを特徴とする請求の範囲第1項に記載のコンテンツ再生装置。 The control means includes
Controlling the audio signal processing means to increase the inter-speaker distance Wsp ′ when the value of Wsd / Wdo is larger than the Wsp ′ / Wdx,
2. The audio signal processing means is controlled so that the inter-speaker distance Wsp ′ is not decreased or increased when the value of Wsd / Wdo is smaller than the Wsp ′ / Wdx. The content reproduction apparatus described in 1. - 画像信号が供給され且つ該供給された画像信号に応じた画像出力を行うディスプレイと、
該ディスプレイの両サイドに前記ディスプレイからの距離が固定される形で取り付けられ、音声信号が供給され且つ該供給された音声信号に応じた音声出力を行う一対のスピーカと、
視聴者から前記ディスプレイ又は前記一対のスピーカまでの距離を特定する距離特定手段と、
前記特定された距離と前記画像の横幅に応じて定められた第1所定距離との差を小さくする方向へ前記視聴者を動かすことを催促する旨の画像信号を生成し且つ該生成された画像信号を供給する画像信号生成手段、及び前記第1所定距離との差を小さくする方向へ前記視聴者を動かすことを催促する旨の音声信号を生成し且つ該生成された音声信号を供給する音声信号生成手段のうち少なくとも一方の信号生成手段と
を備えることを特徴とするコンテンツ再生装置。 A display which is supplied with an image signal and outputs an image corresponding to the supplied image signal;
A pair of speakers that are attached to both sides of the display so that the distance from the display is fixed, to which an audio signal is supplied and that outputs an audio corresponding to the supplied audio signal;
Distance specifying means for specifying a distance from a viewer to the display or the pair of speakers;
Generating an image signal for prompting the viewer to move in a direction to reduce a difference between the specified distance and a first predetermined distance determined according to a width of the image, and the generated image Image signal generating means for supplying a signal, and sound for generating a sound signal for prompting the viewer to move in a direction to reduce the difference from the first predetermined distance and supplying the generated sound signal A content reproduction apparatus comprising: at least one of signal generation means. - 前記音声信号を信号処理することで、前記視聴者による聴覚上で擬似的に前記一対のスピーカ間のスピーカ間距離を増減可能であり、前記信号処理された音声信号を前記一対のスピーカに供給する音声信号処理手段と、
前記特定された視聴者から前記ディスプレイまでの距離に応じて定められた第2所定距離に、前記スピーカ間距離を擬似的に近付けるように前記音声信号処理手段を制御する制御手段と
を備えることを特徴とする請求の範囲第6項に記載のコンテンツ再生装置。 By processing the audio signal, the distance between the speakers between the pair of speakers can be artificially increased or decreased on hearing by the viewer, and the signal-processed audio signals are supplied to the pair of speakers. Audio signal processing means;
Control means for controlling the audio signal processing means so as to approximate the distance between the speakers to a second predetermined distance determined according to the distance from the specified viewer to the display. The content playback apparatus according to claim 6, wherein the content playback apparatus is characterized in that: - 画像信号が供給され且つ該供給された画像信号に応じた画像出力を行うディスプレイと、該ディスプレイの両サイドに前記ディスプレイからの距離が固定される形で取り付けられ、音声信号が供給され且つ該供給された音声信号に応じた音声出力を行う一対のスピーカとを備えるコンテンツ再生装置におけるコンテンツ再生方法であって、
視聴者から前記ディスプレイまでの距離を特定する距離特定工程と、
前記音声信号を信号処理することで、前記視聴者による聴覚上で擬似的に前記一対のスピーカ間のスピーカ間距離を増減可能であり、前記信号処理された音声信号を前記一対のスピーカに供給する音声信号処理工程と、
前記ディスプレイに表示される画像の横幅をWsd、該横幅Wsdに対して奨励される理想的な視聴位置から前記ディスプレイまでの距離をWdo、前記特定された距離をWdx、前記スピーカ間距離をWsp’とするとき、Wsd/Wdoの値に、Wsp’/Wdxの値が近付く側に、前記スピーカ間距離Wsp’を増減させるように前記音声信号処理手段を制御する制御工程と
を備えることを特徴とするコンテンツ再生方法。 A display which is supplied with an image signal and outputs an image according to the supplied image signal, and is attached to both sides of the display in a form in which a distance from the display is fixed, and an audio signal is supplied and the supply A content reproduction method in a content reproduction apparatus comprising a pair of speakers that perform audio output in accordance with an audio signal,
A distance identifying step for identifying a distance from the viewer to the display;
By processing the audio signal, the distance between the speakers between the pair of speakers can be artificially increased or decreased on hearing by the viewer, and the signal-processed audio signals are supplied to the pair of speakers. An audio signal processing step;
The horizontal width of the image displayed on the display is Wsd, the distance from the ideal viewing position recommended for the horizontal width Wsd to the display is Wdo, the specified distance is Wdx, and the distance between the speakers is Wsp ′. A control step of controlling the audio signal processing means so as to increase or decrease the inter-speaker distance Wsp 'on the side where the value of Wsp' / Wdx approaches the value of Wsd / Wdo. Content playback method. - 画像信号が供給され且つ該供給された画像信号に応じた画像出力を行うディスプレイと、該ディスプレイの両サイドに前記ディスプレイからの距離が固定される形で取り付けられ、音声信号が供給され且つ該供給された音声信号に応じた音声出力を行う一対のスピーカとを備えるコンテンツ再生装置におけるコンテンツ再生方法であって、
視聴者から前記ディスプレイ又は前記一対のスピーカまでの距離を特定する距離特定工程と、
前記特定された距離と前記画像の横幅に応じて定められた第1所定距離との差を小さくする方向へ前記視聴者を動かすことを催促する旨の画像信号を生成し且つ該生成された画像信号を供給する画像信号生成工程、及び前記第1所定距離との差を小さくする方向へ前記視聴者を動かすことを催促する旨の音声信号を生成し且つ該生成された音声信号を供給する音声信号生成工程のうち少なくとも一方の信号生成工程と
を備えることを特徴とするコンテンツ再生方法。 A display which is supplied with an image signal and outputs an image according to the supplied image signal, and is attached to both sides of the display in a form in which a distance from the display is fixed, and an audio signal is supplied and the supply A content reproduction method in a content reproduction apparatus comprising a pair of speakers that perform audio output in accordance with an audio signal,
A distance specifying step of specifying a distance from a viewer to the display or the pair of speakers;
Generating an image signal for prompting the viewer to move in a direction to reduce a difference between the specified distance and a first predetermined distance determined according to a width of the image, and the generated image An image signal generating step for supplying a signal, and an audio signal for generating an audio signal for prompting the viewer to move in a direction to reduce the difference from the first predetermined distance, and supplying the generated audio signal A content reproduction method comprising: at least one of signal generation steps.
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