WO2011037204A1 - Content playback device, audio parameter setting method, program, and storage medium - Google Patents

Content playback device, audio parameter setting method, program, and storage medium Download PDF

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Publication number
WO2011037204A1
WO2011037204A1 PCT/JP2010/066591 JP2010066591W WO2011037204A1 WO 2011037204 A1 WO2011037204 A1 WO 2011037204A1 JP 2010066591 W JP2010066591 W JP 2010066591W WO 2011037204 A1 WO2011037204 A1 WO 2011037204A1
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WO
WIPO (PCT)
Prior art keywords
sound
audio
content
parameter
setting
Prior art date
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PCT/JP2010/066591
Other languages
French (fr)
Japanese (ja)
Inventor
修 藤井
寛 打木
隆匡 清水
愛 寺島
篤 小川
Original Assignee
シャープ株式会社
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Publication of WO2011037204A1 publication Critical patent/WO2011037204A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/439—Processing of audio elementary streams
    • H04N21/4398—Processing of audio elementary streams involving reformatting operations of audio signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/485—End-user interface for client configuration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/485—End-user interface for client configuration
    • H04N21/4852—End-user interface for client configuration for modifying audio parameters, e.g. switching between mono and stereo
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/26—Pre-filtering or post-filtering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/81—Monomedia components thereof
    • H04N21/8106—Monomedia components thereof involving special audio data, e.g. different tracks for different languages

Definitions

  • the present invention relates to a content reproduction apparatus for reproducing content, a program, and a computer-readable recording medium on which the program is recorded.
  • the present invention also relates to an audio parameter setting method executed by the content reproduction apparatus.
  • Patent Document 1 a method has been proposed in which the characteristics (sound quality, volume, and sound field) of audio included in content are switched according to the genre or time of the content.
  • Patent Document 2 a proposal has been made to change the frequency characteristics to be output to each speaker according to the audio genre by providing a plurality of speakers that output sound corresponding to the audio signal.
  • Patent Document 3 proposes a technique that can adjust mixing of a voice signal and background sound.
  • Japanese Patent Publication Japanese Patent Laid-Open No. 2001-111970 (published April 20, 2001)” Japanese Patent Publication “JP 2008-103947 A (published May 1, 2008)” Japanese Patent Gazette “Special Table 2003-524906 (published August 19, 2003)”
  • Patent Document 3 requires the user to manually adjust various audio parameters. Therefore, the operation is complicated and troublesome for the user.
  • the present invention has been made to solve the above-described problems, and an object of the present invention is to provide a content reproduction apparatus that enables a sound characteristic setting according to a user's hearing ability and preference by a simple operation. is there.
  • the content playback apparatus provides: A content playback device for playing back content including at least sound, Display means for displaying, on a display, a plurality of selection items for individually explaining a sound having any one of a plurality of frequency characteristics different from each other; Selection means for allowing the user to select any one of the plurality of selection items; Sound output means for outputting the sound represented by the selected selection item from a speaker; Setting means for setting a parameter representing the frequency characteristic of the sound described by the selected selection item as a parameter for the audio included in the content; It is characterized by comprising audio output means for processing the audio included in the content using the set parameters when reproducing the content and outputting the processed audio from the speaker.
  • the user when the user selects one of a plurality of selection items, the user can hear the actual sound expressed by each selection item. Therefore, the user can reliably select the selection item corresponding to the sound that matches his / her preference.
  • a parameter corresponding to the selection item selected by the user is set as a parameter for the audio of the content. Therefore, it is not necessary for the user to manually adjust the parameters for voice one by one.
  • the content reproduction apparatus has an effect of enabling the voice characteristic setting according to the user's preference by a simple operation.
  • the voice parameter setting method is to solve the above-mentioned problem.
  • An audio parameter setting method executed by a content reproduction apparatus that reproduces content including at least audio A display step of displaying a plurality of selection items individually describing a sound having any one of a plurality of frequency characteristics different from each other on a display; A selection step for allowing the user to select any one of the plurality of selection items; A sound output step for outputting the sound represented by the selected selection item from a speaker; A setting step of setting a parameter representing the frequency characteristic of the sound described by the selected selection item as a parameter for the sound included in the content; A voice output step of processing the audio included in the content when the content is reproduced using the set parameter and outputting the processed audio from the speaker;
  • the present invention has an effect of adjusting the sound characteristics by a simple operation.
  • FIG. 7 is a diagram showing an example of each frequency characteristic based on parameters for each column of the table shown in FIG. 6, and (a) to (e) correspond to “1.” to “5.” columns of the table of FIG. is doing. It is a table showing the parameter previously linked
  • FIG. 9 is a diagram showing an example of each frequency characteristic based on the parameters for each column shown in FIG. 8, and (a) to (e) correspond to “1.” column to “5.” column of the table of FIG. ing.
  • FIG. 1 is a diagram schematically showing a configuration of a television receiver 10 according to an embodiment of the present invention.
  • a television receiver 10 (content reproduction device) is an entire television receiver having a liquid crystal display device 22 (display panel) having a screen size of 16: 9 (1920 ⁇ 1010 dots), for example.
  • the television receiver 10 includes a CPU 6 and a memory 7 connected to the bus 8, and the operation of the television receiver 10 is controlled by various control programs stored in the CPU 6 and the memory 7. That is, the television receiver shown in FIG. 1 is controlled by a computer system including a CPU 6, and a program for operating the television receiver by the computer system is stored in the memory 7.
  • the memory 7 is usually composed of a RAM, but may include a ROM in part. Further, a rewritable flash memory or the like may be included.
  • the memory 7 stores an OS for operating the CPU, various control software, and the like. Data relating to program information such as EPG data received via broadcast waves, and for OSD display necessary for OSD display. Image data and the like are stored.
  • the memory 7 has a work area that functions as a work memory necessary for various control operations.
  • the television receiver 10 is provided with an analog tuner section 12 in addition to the digital tuner section 14, and can receive analog broadcasts.
  • the external input unit 31 can be connected to various external devices 30 such as a solid-state memory such as an HDD and an SD card, and a disk device such as a BD (Blu-ray Disc), DVD, and CD.
  • a BD / DVD / CD recording / reproducing unit 32 is also incorporated in the main body of the receiver 10.
  • an IP broadcast tuner unit 23 is provided, and IP broadcast reception is also possible.
  • the television receiver 10 includes an AV switch unit 13, a digital demodulation unit 15, a separation unit (DMUX) 16, a video decoding / capture unit 17, a video selector unit 18, a video processing unit 19 (video processing means), and an addition.
  • the television receiver 10 is further provided with an OPC sensor 38 for detecting ambient brightness.
  • the OPC sensor 38 is more preferably an illuminance sensor including a low pass filter. Thereby, temporary changes, such as a person passing in front of a sensor, can be relieved and illumination intensity can be acquired smoothly.
  • the analog tuner unit 12 selects an analog television broadcast signal received via the antenna 11 for receiving an analog broadcast, and selects a channel according to a channel selection instruction from the channel selection unit 33.
  • the received signal from the analog tuner unit 12 is separated into an audio signal and a video signal in the AV switch unit 13, the video signal is input to the video selector unit 18, and the audio signal is input to the audio selector unit 26.
  • the digital tuner unit 14 selects a digital television broadcast signal received via the digital broadcast receiving antenna 40, and selects a channel to be received according to a channel selection instruction from the channel selection unit 33.
  • the received signal from the digital tuner unit 14 is demodulated by the digital demodulation unit 15 and sent to the separation unit (DMUX) 16.
  • the IP broadcast tuner unit 23 selects an IP broadcast received via a communication control unit 34 connected to a telephone line / LAN or the like, and receives a specific IP received in response to a channel selection instruction from the channel selection unit 33. The broadcast is selected and the output is sent to the separation unit (DMUX) 16.
  • DMUX separation unit
  • the separation unit (DMUX) 16 separates the multiplexed video data and audio data input from the digital demodulation unit 15 or the IP broadcast tuner unit 23, sends the video data to the video decoding / capture unit 17, and the audio data Is sent to the audio decoding unit 25. Further, the separation unit (DMUX) 16 extracts data such as EPG data included in the broadcast signal and sends it to the EPG / OSD / reservation processing unit 24. The broadcast wave signal extracted by the separation unit (DMUX) 16 is recorded in the memory 7 by writing control by the CPU 6 as necessary.
  • the video decode / capture unit 17 decodes the video data separated by the separation unit (DMUX) 16 and captures video information included in the video data as a still image.
  • the video signal decoded by the video decoding / capture unit 17 is sent to the video selector unit 18.
  • the video signal from the analog tuner unit 12 is input to the video selector unit 18, and the video signal from the external input unit 31 is also input.
  • the video selector unit 18 selects and outputs one video signal from these input video signals according to the control signal from the CPU 6, and sends it to the video processing unit 19.
  • the video processing unit 19 performs video processing such as noise reduction processing, sharpness adjustment, and contrast adjustment on the input video signal so as to obtain an optimal video signal for the liquid crystal display device 22. Convert video data to.
  • the display control unit 21 includes a drive circuit for displaying the received video data on the liquid crystal display device 22, and an electronic program table (from the EPG / OSD / reservation processing unit 24) added by the addition circuit 20 ( EPG (Electronic Program Guide) data or OSD (On Screen Display) data is sent to the liquid crystal display device 22 in addition to the video data from the video processing unit 19.
  • EPG Electronic Program Guide
  • OSD On Screen Display
  • the audio decoding unit 25 decodes the audio data separated by the separation unit (DMUX) 16.
  • the audio decoding unit 25 sends the decoded audio signal to the audio selector unit 26.
  • the audio selector unit 26 receives the audio signal from the AV switch unit 13, the audio signal from the external input unit 31, and the audio signal from the audio decoding unit 25, and is selected by the video selector unit 18 under the control of the CPU 6. An audio signal corresponding to the video signal is selected, and the audio signal is sent to the speaker 28 via the audio output conversion unit 27.
  • the audio output conversion unit 27 converts the received audio signal into a signal optimal for reproduction on the speaker 28 and supplies the converted signal to the speaker 28.
  • the remote control light receiving unit 35 receives an optical signal from a remote controller 36 (hereinafter referred to as a remote controller 36) and receives a control signal from the remote controller 36.
  • a remote controller 36 receives an optical signal from a remote controller 36 (hereinafter referred to as a remote controller 36) and receives a control signal from the remote controller 36.
  • An instruction from the user (viewer) such as selection and determination of various buttons on the screen is performed via the remote controller 36.
  • the EPG / OSD / reservation processing unit 24 creates an electronic program guide based on EPG data periodically updated and stored, and draws OSD data stored in the memory 7 in advance.
  • the OSD data is data for drawing various information such as a setting menu screen, a volume cage, a current time, a channel selection, and the like stored in advance in the memory 7, for example.
  • the EPG / OSD / reservation processing unit 24 performs program reservation processing using the electronic program guide.
  • the communication control unit 34 performs control so as to establish communication via a network such as a telephone line, a LAN, or the Internet.
  • various data selection items, audio signals, and audio signals for hearing measurement used in “favorite audio setting” to be described later are stored in advance.
  • the audio parameter setting unit 42 sets audio parameters used when the audio output conversion unit 27 processes an audio signal.
  • the genre information processing unit 43 discriminates and acquires the genre information of the content from the member that has received the content among the separation unit 16, the external input unit 31, and the recording / playback unit 32.
  • genre information is classified and associated with major classification and middle classification.
  • the major classification includes, for example, “news / report”, “information / wide show”, “variety”, “movie”, “sports”, and the like.
  • As the middle category for example, when the major category is “news / report”, there are “regular / comprehensive”, “local / region”, “weather” and the like.
  • one broadcast program (content) is associated with a plurality of large categories of genre information. For example, in the case of sports news, genre information of large categories “news / report” and “sports” is associated, and further, some genre information of medium categories belonging to these are associated.
  • the genre information processing unit 43 displays genre information associated with the content. get.
  • the genre information to be acquired may be a part or all of the genre information associated with the content.
  • the genre information processing unit 43 can determine, for example, whether or not it is derived from a film from the frame frequency of the content.
  • the case where the content received by the television receiver is a digital broadcast will be described, but the same processing can be performed for an analog broadcast. That is, in the case of analog broadcasting, it is possible to acquire genre information by extracting a keyword representing the type of program as genre information by performing audio analysis and image analysis.
  • FIG. 2 is a diagram showing a screen for inquiring the user whether or not to set the sound quality of the sound when reproducing the content.
  • the screen shown in FIG. 2 is displayed. This is a screen for inquiring the user as to whether or not to initially set the sound quality of content (for example, a broadcast program) that can be played back on the television receiver 10.
  • the user who visually recognizes the screen of FIG. 2 operates the remote controller 36 to select “Yes” or “No”.
  • “Setting the favorite sound quality” is a process of setting a parameter representing a sound quality characteristic according to the user's preference as a parameter for the sound of the content by a simple operation.
  • FIG. 3 is a diagram showing a screen when the user selects the middle sound setting when setting the favorite sound quality.
  • the display control unit 21 of the television receiver 10 first displays on the liquid crystal display device 22 a screen that prompts the user to set medium sound.
  • the term “medium sound” here means a sound in the middle frequency band (voice band). Specifically, for example, a sound in a frequency band from approximately 100 Hz to 8 kHz corresponds to a medium sound.
  • the display control unit 21 displays a plurality of selection candidates that individually express sounds having any one of a plurality of frequency characteristics that are different from each other in the mid-range and that are equal to each other in the bands other than the mid-range (low range and high range). Is displayed on the display control unit 21.
  • five texts “clear sound quality”, “excellent sound quality”, “standard sound quality”, “soft sound quality”, and “sound quality suitable for background sound” are selected as the plurality of selection candidates. Equivalent to. By default, the “standard sound quality” item is selected. The user operates the remote controller 36 to select one of these five selection candidates. The currently selected item is highlighted.
  • the display control unit 21 displays, for each selection candidate, a sentence explaining the effect of sound quality setting when the selection candidate is selected next to the selection candidate on the screen of FIG.
  • the user can know in advance the effect of sound quality improvement when selecting each selection candidate by reading each sentence.
  • the audio output conversion unit 27 reads the audio signal (MP3 or AAC format) corresponding to the selection item selected by the user from the setting memory 41, Output to the speaker 28. Thereby, a sound corresponding to the item being selected is output from the speaker 28. At this time, the sound is limited to the built-in speaker 28. That is, no sound is emitted from an external speaker.
  • the sound volume can be changed as appropriate.
  • the current volume value is displayed on the screen. If the user changes the selection of the item, the sound output from the speaker 28 is changed accordingly. At this time, a new sound is reproduced from the beginning. By listening to this sound, the user can grasp in advance how the middle sound of the content is heard when the selection of a certain item is confirmed.
  • the voice output conversion unit 27 outputs a voice from the speaker 28 as a medium sound. Specifically, some sound (for example, conversation or speech) including human speech is output. Thereby, the user can surely grasp how the sound quality of the medium sound of the content is improved.
  • the user selects one of a plurality of items and finally confirms the selection. For example, when an enter button on the remote controller 36 is pressed, the item being selected can be confirmed. Information for specifying the item thus selected is transmitted to the voice parameter setting unit 42 through the remote control light receiving unit 35.
  • FIG. 4 is a diagram showing a screen when the user selects the setting of the low tone and the high tone when the favorite sound quality is set.
  • the display control unit 21 of the television receiver 10 displays a screen for prompting the user to set a low tone and a high tone on the liquid crystal display device 22.
  • the term “bass” as used herein means a sound in a low frequency band. Specifically, for example, sound in a frequency band from approximately 10 Hz to 100 Hz corresponds to bass.
  • “treble” means a sound in a high frequency band. Specifically, for example, a sound in a frequency band from about 8 kHz to 20 kHz corresponds to a high tone.
  • the display control unit 21 has a plurality of sounds that individually express sounds having any one of a plurality of frequency characteristics that are different from each other in the low frequency band and the high frequency band and that are equal to each other in a band (middle frequency band) other than the low frequency band and the high frequency band.
  • the selected item is displayed on the display control unit 21.
  • five texts of “more powerful sound quality”, “powerful sound quality”, “standard sound quality”, “sound quality emphasizing voice”, and “sound quality emphasizing voice” are Corresponds to multiple selection items. By default, the item “standard sound quality” is selected, and the user operates the remote controller 36 to select one of these five selection items. The currently selected item is highlighted.
  • the display control part 21 displays the text explaining the effect at the time of selecting the said selection item for every selection item on the screen of FIG. 5 next to the said selection item. By reading each sentence, the user can know in advance the effect of sound quality improvement when each selection item is selected.
  • the television receiver 10 reproduces sound corresponding to the item selected by the user.
  • the audio output conversion unit 27 reads out the audio signal (MP3 or AAC format) corresponding to the currently selected item from the setting memory 41 and outputs it from the speaker 28.
  • the sound is limited to the built-in speaker 28. That is, no sound is emitted from an external speaker.
  • the sound volume can be changed as appropriate.
  • the current volume value is displayed on the screen. If the user changes the selection of the item, the sound output from the speaker 28 is changed accordingly. At this time, a new sound is reproduced from the beginning. By listening to this sound, the user can know in advance how the low and high sounds of the content are heard when a certain item is set.
  • the audio output conversion unit 27 outputs music from the speaker 28 as low and high sounds. Since music contains a lot of bass and treble components, changing the frequency characteristics of bass and treble will greatly change how the music is heard. Therefore, the user can surely grasp how the sound quality of the bass and treble is improved before the selection of the item is confirmed.
  • the user selects one of a plurality of items and finally confirms the selection. For example, if a determination button on the remote controller 36 is pressed, the item being selected can be confirmed. Which item is selected in this way is notified to the audio parameter setting unit 42 of the television receiver 10.
  • FIG. 5 is a diagram showing a screen that prompts the user to complete the preference sound quality setting.
  • the display control unit 21 displays the setting items (two) selected by the user, and displays a screen that prompts the user to decide whether to complete the setting or to reset the setting. If the user selects “Complete”, the television receiver 10 completes the preference sound quality setting. On the other hand, if the user selects “reset”, the television receiver 10 redoes the preference sound quality setting.
  • FIG. 6 is a diagram showing a table storing a plurality of parameters individually associated in advance with each selection item displayed on the screen when setting the favorite sound quality of the medium sound.
  • the table shown in this figure stores a plurality of parameters representing the frequency characteristics of the sound represented by each selection item for each of the five selection items.
  • the numbers in the top row of the table indicate the display order of the selection items shown in FIG. 3 from the screen. That is to say, for example, the parameter “1.” stores parameters related to the selection item of “clear sound”.
  • the parameters shown in FIG. 6 are values that can be set in the parametric equalizer.
  • a total of ten parameters are associated in advance with respect to one selection item shown in FIG.
  • “L / R band 0” indicates a value set to the first band of the left and right channels of the parametric equalizer
  • “L / R band 1” indicates the second channel of the left and right channels of the parametric equalizer.
  • the band 0 and band 1 parametric equalizers are cascaded.
  • S / W0 indicates a value set in the first band of the subwoofer of the parametric equalizer. For each of these items, there are parameters for gain, center frequency, and sharpness, respectively.
  • “Volume” indicates a value for uniformly changing the sound value of all frequency bands.
  • FIG. 7 is a diagram showing an example of each frequency characteristic based on the parameters for each column shown in FIG. 7A to 7E correspond to the “1.” column to the “5.” column of the table of FIG.
  • FIG. 8 is a diagram showing a table storing a plurality of parameters individually associated in advance with each selection item displayed on the screen when setting the favorite sound quality of bass and treble.
  • the table shown in this figure includes a plurality of parameters representing the frequency characteristics of the sound represented by each selection item for each of the five selection items.
  • the numbers in the top row of the table represent the display order of the selection items shown in FIG. 4 from the screen. That is, for example, the parameter “1.” stores parameters related to the selection item of “More powerful voice”.
  • “treble” represents high-frequency gain
  • “low” represents low-frequency gain
  • the filter shown in FIG. 8 is composed of a biquad filter or the like, like a parametric equalizer, and has gain, center frequency, and sharpness as parameters.
  • the low frequency side is called a LowShelf filter
  • the high frequency side is called a highShelf filter.
  • FIG. 9 is a diagram showing an example of each frequency characteristic based on the parameters for each column shown in FIG. 9A to 9E correspond to the “1.” column to the “5.” column in the table of FIG.
  • the audio parameter setting unit 42 sets a parameter corresponding to the item selected by the user as a parameter used when outputting the audio of the content. Specifically, first, parameters corresponding to the item selected by the user when setting the preferred sound quality of the medium sound are read from the table shown in FIG. Then, the read parameter is set as a medium sound parameter in the audio of the content. Next, the parameter corresponding to the item selected by the user when setting the favorite sound quality of bass / treble is read from the table shown in FIG. Then, the read parameters are set as parameters for low and high sounds in the audio of the content.
  • the voice parameter setting unit 42 transmits the set parameters to the voice output conversion unit 27.
  • the audio output conversion unit 27 processes the audio of the content using the parameters transmitted from the audio parameter setting unit 42 and outputs the processed audio to the speaker 28.
  • the sound reflecting the parameters according to the two items selected by the user when setting the favorite sound quality is output from the speaker 28.
  • the user can easily complete the sound quality setting of the content simply by selecting two selection items.
  • the audio parameter setting unit 42 corrects the parameters set at the time of setting the favorite sound quality using parameters (frequency characteristics, volume, sound field, etc.) according to the genre of the content. May be.
  • the genre information processing unit 43 outputs the acquired genre information to the audio parameter setting unit 42.
  • the audio parameter setting unit 42 specifies the genre of the content based on the input genre information. Then, the parameter corresponding to the specified genre is read from the setting memory 41.
  • FIG. 10 is a diagram showing a list of sound quality parameters corresponding to the genre of content. Different parameters correspond to each genre. Such genre types and parameter values are associated with each other and stored in the setting memory 41 in advance.
  • the audio parameter setting unit 42 corrects the parameter set at the time of setting the favorite sound quality with the parameter corresponding to the genre of the content. Specifically, for example, parameter values are combined with each other to obtain a new value, and this value is set as a parameter used during audio processing of content.
  • the television receiver 10 can output audio reflecting both the user's preference and the content genre when the content is reproduced. Therefore, it is possible to output the optimum voice for the user for each genre.
  • the television receiver 10 can also set a parameter corresponding to the user's hearing as a parameter for audio of content. This example will be described below with reference to FIGS.
  • FIG. 11 is a diagram showing a screen for measuring the user's hearing ability. After the user purchases the television receiver 10 for the first time after the purchase, the television receiver 10 displays the screen shown in FIG. 11 before presenting selection items for setting the favorite sound quality to the user. At that time, the audio output conversion unit 27 outputs a specified audio for measuring hearing ability from the speaker 28 with a constant volume.
  • the audio for measuring hearing ability is a person's speaking voice (conversation or speech).
  • the television receiver 10 allows the user to input whether or not the sound for hearing measurement has been heard.
  • the user inputs the listening result by selecting “Yes” or “No” on the screen.
  • the input listening result is transmitted to the display control unit 21 through the remote control light receiving unit 35. After inputting the listening result, the television receiver 10 starts setting the favorite sound quality.
  • the display control unit 21 displays a plurality of selection items on the liquid crystal display device 22 according to the input contents by the user when setting the favorite sound quality. Specifically, when the user selects “Yes”, the display control unit 21 displays a plurality of selection items for young people (FIG. 12).
  • FIG. 12 is a diagram showing a screen including a plurality of selection items for young people displayed when setting the sound quality of medium sound.
  • FIG. 13 is a diagram showing a screen including a plurality of selection items for elderly people displayed when setting the sound quality of medium sound.
  • the average value of the amplitude of the frequency characteristic of the sound expressed by each selection item shown in FIG. 12 takes a certain value.
  • the average value of the amplitude of the frequency characteristic of the sound expressed by each selection item shown in FIG. 13 takes a higher value than the certain value. Therefore, the average value of the amplitudes among the plurality of parameters previously associated with each selection item shown in FIG. 12 is greater than the average value of the amplitudes among the plurality of parameters previously associated with each selection item shown in FIG. It is getting bigger.
  • the television receiver 10 causes the user who is determined to be an elderly person to select the setting of sound that can be heard with a louder sound for the user who is determined to be a youth. Thereby, the optimal sound quality setting according to a user's hearing ability is attained.
  • FIG. 14 is a diagram illustrating a screen when the user selects the setting of the low tone and the high tone when setting the favorite sound quality.
  • seven selection items are displayed.
  • the display control unit 21 displays a screen including common selection items on the liquid crystal display device 22 when the user selects low and high sounds regardless of the hearing determination result. This is because the effect of changing the amplitude of bass and treble for young people and elderly people is lower than that of medium sounds.
  • the display control unit 21 displays selection items according to the listening result input by the user on the liquid crystal display device 22 when setting the favorite sound quality for bass and treble as in the case of setting the middle tone. May be.
  • a television receiver has been described as an example, but in addition, in portable devices that can watch television, such as mobile phones, car navigation systems, portable game terminals, etc. It is clear that the display method according to the present invention can be applied also when receiving television.
  • each unit included in the television receiver 10 may be configured by hardware logic. Alternatively, it may be realized by software using a CPU (Central Processing Unit) as follows.
  • CPU Central Processing Unit
  • the television receiver 10 includes a CPU that executes instructions of a program that realizes each function, a ROM (Read Only Memory) that stores the program, a RAM (Random Access Memory) that expands the program into an executable format, And a storage device (recording medium) such as a memory for storing the program and various data.
  • a predetermined recording medium such as a memory for storing the program and various data.
  • This recording medium only needs to record the program code (execution format program, intermediate code program, source program) of the program of the television receiver 10 which is software that realizes the above-described functions so that it can be read by a computer.
  • This recording medium is supplied to the television receiver 10.
  • the television receiver 10 or CPU or MPU as a computer may read and execute the program code recorded on the supplied recording medium.
  • the recording medium that supplies the program code to the television receiver 10 is not limited to a specific structure or type. That is, the recording medium includes, for example, a tape system such as a magnetic tape and a cassette tape, a magnetic disk such as a floppy (registered trademark) disk / hard disk, and an optical disk such as a CD-ROM / MO / MD / DVD / CD-R. System, a card system such as an IC card (including a memory card) / optical card, or a semiconductor memory system such as a mask ROM / EPROM / EEPROM / flash ROM.
  • a tape system such as a magnetic tape and a cassette tape
  • a magnetic disk such as a floppy (registered trademark) disk / hard disk
  • an optical disk such as a CD-ROM / MO / MD / DVD / CD-R.
  • a card system such as an IC card (including a memory card) / optical card, or a semiconductor memory system such as a
  • the object of the present invention can be achieved.
  • the program code is supplied to the television receiver 10 via the communication network.
  • the communication network is not limited to a specific type or form as long as it can supply program codes to the television receiver 10.
  • the Internet intranet, extranet, LAN, ISDN, VAN, CATV communication network, virtual private network, telephone line network, mobile communication network, satellite communication network, etc. may be used.
  • the transmission medium constituting the communication network may be any medium that can transmit the program code, and is not limited to a specific configuration or type.
  • a specific configuration or type for example, even wired such as IEEE 1394, USB (Universal Serial Bus), power line carrier, cable TV line, telephone line, ADSL (Asymmetric Digital Subscriber Line) line, infrared such as IrDA or remote control, Bluetooth (registered trademark), 802.11
  • radio such as radio, HDR, mobile phone network, satellite line, terrestrial digital network.
  • the present invention can also be realized in the form of a computer data signal embedded in a carrier wave in which the program code is embodied by electronic transmission.
  • the content reproduction apparatus is a content reproduction apparatus that reproduces content including at least sound
  • Display means for displaying, on a display, a plurality of selection items for individually explaining a sound having any one of a plurality of frequency characteristics different from each other
  • Selection means for allowing the user to select any one of the plurality of selection items
  • Sound output means for outputting the sound represented by the selected selection item from a speaker
  • Setting means for setting a parameter representing the frequency characteristic of the sound described by the selected selection item as a parameter for the audio included in the content
  • It is characterized by comprising audio output means for processing the audio included in the content using the set parameters when reproducing the content and outputting the processed audio from the speaker.
  • Audio output means for audio measurement for outputting the audio for audio measurement of a predetermined volume from the speaker at a constant volume;
  • Input means for allowing a user to input whether or not the hearing measurement sound has been heard;
  • the display means displays the plurality of selection items corresponding to the input content by the user on the display.
  • an optimum parameter corresponding to the user's hearing ability can be set as a parameter for content audio.
  • the display means includes When the user inputs that the audio for hearing measurement is heard, the plurality of selection items individually expressing any one of the plurality of frequency characteristics whose average value of amplitude in a middle range is a predetermined value, On the display, The plurality of selection items that individually express any one of the plurality of frequency characteristics in which an average value of an amplitude in a middle range is larger than the predetermined value when the user inputs that the audio for hearing measurement is not heard Is preferably displayed on the display.
  • a user who cannot hear a hearing measurement sound can be made to select a candidate set to a sound having a frequency characteristic with higher amplitude than a user who can hear the sound for hearing measurement. Therefore, an optimum parameter corresponding to the user's hearing ability can be set as a parameter for the sound of the content.
  • the display means displays the plurality of selection items individually representing sounds having any one of the plurality of frequency characteristics different from each other in a specific band and equal to each other in a band other than the specific band. Displayed on the The setting means preferably sets a parameter representing the frequency characteristic of the sound described by the selected selection item as a parameter for the specific band in the sound included in the content.
  • the specific band is a middle band;
  • the sound output means outputs a speaking voice as the sound from the speaker.
  • the user can set the sound quality of the middle range (medium tone) while listening to the spoken voice reflecting the setting candidate parameters. Therefore, the user can surely grasp how the sound quality of the middle sound of the content is improved before setting.
  • the specific band is at least one of a low band and a high band
  • the sound output means preferably outputs music from the speaker as the sound.
  • the user can set the sound quality of the low range and the high range (bass and treble) while listening to the music reflecting the setting candidate parameters. Therefore, the user can surely grasp how the sound quality of the bass and treble included in the content is improved before setting.
  • the specific band is preferably both a low band and a high band.
  • Genre specifying means for specifying the genre of the content It is preferable that the apparatus further includes a correcting unit that corrects the parameter set by the setting unit based on a parameter corresponding to the genre specified by the genre specifying unit.
  • the content reproduction apparatus may be realized by a computer.
  • a program for realizing the content reproduction apparatus in the computer by causing the computer to operate as each of the above means and a computer-readable recording medium recording the program also fall within the scope of the present invention.
  • the present invention can be optimally used as a content reproduction apparatus such as a television receiver.

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Abstract

A display control unit (21) displays, on a liquid crystal display device (22), a plurality of items to be selected from, each of which explains individually a sound having either one of a plurality of frequency characteristics that are different from each other. A television receiver (10) lets a user select either one among the plurality of selecting items. An audio output converting unit (27) outputs, from a speaker (28), the sound that the item selected by the user represents. An audio parameter setting unit sets a parameter that indicates the frequency characteristic the sound explained by the item selected by the user has, as an audio parameter to be included in the content. An audio output converting unit (27) processes the audio included in the content, using the parameter that was set, and outputs the processed audio from the speaker (28).

Description

コンテンツ再生装置、音声パラメータ設定方法、プログラム、および記録媒体Content reproduction apparatus, audio parameter setting method, program, and recording medium
　本発明は、コンテンツを再生するコンテンツ再生装置、プログラム、および当該プログラムが記録されたコンピュータ読み取り可能な記録媒体に関する。また、コンテンツ再生装置が実行する音声パラメータ設定方法に関する。 The present invention relates to a content reproduction apparatus for reproducing content, a program, and a computer-readable recording medium on which the program is recorded. The present invention also relates to an audio parameter setting method executed by the content reproduction apparatus.
　従来、コンテンツに含まれる音声の特性（音質、音量、および音場）を、当該コンテンツのジャンルまたは時刻に応じて切り替える手法が提案されている（特許文献１）。また、音声信号の応じた音を出力するスピーカを複数備え、音声ジャンルに応じて各スピーカに出力する周波数特性を変更する提案もなされている（特許文献２）　。 Conventionally, a method has been proposed in which the characteristics (sound quality, volume, and sound field) of audio included in content are switched according to the genre or time of the content (Patent Document 1). In addition, a proposal has been made to change the frequency characteristics to be output to each speaker according to the audio genre by providing a plurality of speakers that output sound corresponding to the audio signal (Patent Document 2).
　しかし特許文献１および２の技術では、ユーザの聴力および嗜好を、音声の特性に反映させることはできない。一方、ユーザの嗜好反映を可能にする技術として、従来、ボイス信号と背景音のミキシングを調整に可能する装置が提案されている（特許文献３）。 However, with the technologies of Patent Documents 1 and 2, the user's hearing ability and preference cannot be reflected in the sound characteristics. On the other hand, as a technique that enables the user's preference to be reflected, an apparatus that can adjust mixing of a voice signal and background sound has been proposed (Patent Document 3).
日本国公開特許公報「特開２００１－１１１９７０号公報（２００１年４月２０日公開）」Japanese Patent Publication “Japanese Patent Laid-Open No. 2001-111970 (published April 20, 2001)” 日本国公開特許公報「特開２００８－１０３９４７号公報（２００８年５月　１日公開）」Japanese Patent Publication “JP 2008-103947 A (published May 1, 2008)” 日本国公表特許公報「特表２００３－５２４９０６号公報（２００３年８月１９日公表）」Japanese Patent Gazette “Special Table 2003-524906 (published August 19, 2003)”
　しかし特許文献３の技術では、ユーザが各種の音声パラメータを手動で調整する必要がある。したがって操作が複雑になって、ユーザにとって煩わしい。 However, the technique of Patent Document 3 requires the user to manually adjust various audio parameters. Therefore, the operation is complicated and troublesome for the user.
　本発明は前記の課題を解決するためになされたものであり、その目的は、簡単な操作によって、ユーザの聴力や嗜好に応じた音声の特性設定を可能にするコンテンツ再生装置を提供することにある。 The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a content reproduction apparatus that enables a sound characteristic setting according to a user's hearing ability and preference by a simple operation. is there.
　本発明に係るコンテンツ再生装置は、前記の課題を解決するために、
　少なくとも音声を含むコンテンツを再生するコンテンツ再生装置であって、
　互いに異なる複数の周波数特性のうちいずれかを有する音を個別に説明する複数の選択項目を、ディスプレイに表示する表示手段と、
　前記複数の選択項目のうち、いずれか一つをユーザに選択させる選択手段と、
　選択された前記選択項目によって表現される前記音を、スピーカから出力させる音出力手段と、
　択された前記選択項目によって説明される前記音が有する前記周波数特性を表すパラメータを、前記コンテンツに含まれる前記音声用のパラメータとして設定する設定手段と、
　前記コンテンツの再生時、当該コンテンツに含まれる音声を前記設定されたパラメータを用いて処理し、処理後の音声を前記スピーカから出力させる音声出力手段とを備えていることを特徴としている。 In order to solve the above problems, the content playback apparatus according to the present invention provides:
A content playback device for playing back content including at least sound,
Display means for displaying, on a display, a plurality of selection items for individually explaining a sound having any one of a plurality of frequency characteristics different from each other;
Selection means for allowing the user to select any one of the plurality of selection items;
Sound output means for outputting the sound represented by the selected selection item from a speaker;
Setting means for setting a parameter representing the frequency characteristic of the sound described by the selected selection item as a parameter for the audio included in the content;
It is characterized by comprising audio output means for processing the audio included in the content using the set parameters when reproducing the content and outputting the processed audio from the speaker.
　上記の構成によれば、ユーザは、複数の選択項目から一つを選ぶ際、各選択項目によって表現される実際の音を聞くことができる。したがってユーザは、自身の嗜好に合致した音に対応する選択項目を、確実に選択できる。ユーザが選択した選択項目に応じたパラメータが、コンテンツの音声用のパラメータとして設定される。したがって、音声用のパラメータをユーザが一つ一つ手作業で調整する手間は必要としない。 According to the above configuration, when the user selects one of a plurality of selection items, the user can hear the actual sound expressed by each selection item. Therefore, the user can reliably select the selection item corresponding to the sound that matches his / her preference. A parameter corresponding to the selection item selected by the user is set as a parameter for the audio of the content. Therefore, it is not necessary for the user to manually adjust the parameters for voice one by one.
　以上のように、本発明のコンテンツ再生装置では、簡単な操作によって、ユーザの嗜好に応じた音声の特性設定を可能にする効果を奏する。 As described above, the content reproduction apparatus according to the present invention has an effect of enabling the voice characteristic setting according to the user's preference by a simple operation.
　本発明に係る音声パラメータ設定方法は、上記の課題を解決するためん、
　少なくとも音声を含むコンテンツを再生するコンテンツ再生装置が実行する音声パラメータ設定方法であって、
　互いに異なる複数の周波数特性のうちいずれかを有する音を個別に説明する複数の選択項目を、ディスプレイに表示する表示ステップと、
　前記複数の選択項目のうち、いずれか一つをユーザに選択させる選択ステップと、
　選択された前記選択項目によって表現される前記音を、スピーカから出力させる音出力ステップと、
　選択された前記選択項目によって説明される前記音が有する前記周波数特性を表すパラメータを、前記コンテンツに含まれる前記音声用のパラメータとして設定する設定ステップと、
　前記コンテンツの再生時、当該コンテンツに含まれる音声を、設定された前記パラメータを用いて処理し、処理後の音声を前記スピーカから出力させる音声出力ステップとを備えていることを特徴としている。 The voice parameter setting method according to the present invention is to solve the above-mentioned problem.
An audio parameter setting method executed by a content reproduction apparatus that reproduces content including at least audio,
A display step of displaying a plurality of selection items individually describing a sound having any one of a plurality of frequency characteristics different from each other on a display;
A selection step for allowing the user to select any one of the plurality of selection items;
A sound output step for outputting the sound represented by the selected selection item from a speaker;
A setting step of setting a parameter representing the frequency characteristic of the sound described by the selected selection item as a parameter for the sound included in the content;
A voice output step of processing the audio included in the content when the content is reproduced using the set parameter and outputting the processed audio from the speaker;
　上記の構成によれば、本発明に係るコンテンツ再生装置と同様の作用効果を奏する。 According to the above configuration, the same operational effects as those of the content reproduction apparatus according to the present invention can be obtained.
　本発明は、簡単な操作によって、音声の特性を調整できる効果を奏する。 The present invention has an effect of adjusting the sound characteristics by a simple operation.
本発明の一実施形態に係るテレビジョン受像機の構成を模式的に示す図である。It is a figure which shows typically the structure of the television receiver which concerns on one Embodiment of this invention. コンテンツを再生する際の音声の音質を設定するか否かをユーザに問い合わせる画面を示す図である。It is a figure which shows the screen which asks a user whether the sound quality of the audio | voice at the time of reproducing | regenerating a content is set. お好み音質設定時に、ユーザに中音の設定を選択させる際の画面を示す図面である。It is drawing which shows the screen at the time of making a user select the setting of middle sound at the time of favorite sound quality setting. お好み音質設定時に、ユーザに低音および高音の設定を選択させる際の画面を示す図面である。It is drawing which shows the screen at the time of making a user select the setting of a low tone and a high tone at the time of favorite sound quality setting. お好み音質設定を完了するか否かをユーザに促す画面を示す図である。It is a figure which shows the screen which asks a user whether completion of favorite sound quality setting is completed. 中音のお好み音質設定時に画面に表示される各選択項目にあらかじめ関連付けられているパラメータを表すテーブルである。It is a table showing the parameter previously linked | related with each selection item displayed on a screen at the time of favorite sound quality setting of a middle sound. 図６に示すテーブルの各一列分のパラメータに基づく各周波数特性の例を示す図であり、（ａ）～（ｅ）は図６のテーブルの「１．」列～「５．」列に対応している。FIG. 7 is a diagram showing an example of each frequency characteristic based on parameters for each column of the table shown in FIG. 6, and (a) to (e) correspond to “1.” to “5.” columns of the table of FIG. is doing. 低音および高音のお好み音質設定時に画面に表示される各選択項目にあらかじめ関連付けられているパラメータを表すテーブルである。It is a table showing the parameter previously linked | related with each selection item displayed on a screen at the time of a favorite sound quality setting of a low tone and a high tone. 図８に示す各一列分のパラメータに基づく各周波数特性の例を示す図であり、（ａ）～（ｅ）は、図８のテーブルの「１．」列～「５．」列に対応している。FIG. 9 is a diagram showing an example of each frequency characteristic based on the parameters for each column shown in FIG. 8, and (a) to (e) correspond to “1.” column to “5.” column of the table of FIG. ing. コンテンツのジャンルに応じた音質パラメータの一覧を示す図である。It is a figure which shows the list of the sound quality parameters according to the genre of content. ユーザの聴力を測定するための画面を示す図である。It is a figure which shows the screen for measuring a user's hearing. 中音の音質設定時に表示される、若者向けの複数の選択項目を含んだ画面を示す図である。It is a figure which shows the screen containing the some selection item for youths displayed at the time of the sound quality setting of middle sound. 中音の音質設定時に表示される、高齢者向けの複数の選択項目を含んだ画面を示す図である。It is a figure which shows the screen containing the some selection item for elderly people displayed at the time of the sound quality setting of middle sound. お好み音質設定時に、ユーザに低音および高音の設定を選択させる際の画面を示す図面である。It is drawing which shows the screen at the time of making a user select the setting of a low tone and a high tone at the time of favorite sound quality setting.
　以下、本発明の実施の形態について、図１～図１４を用いて詳細に説明する。なお、以下の説明では本発明を実施するために好ましい種々の限定が付与されているが、本発明の技術的範囲は以下の実施の形態及び図面の記載に限定されるものではない。 Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. In the following description, various preferred limitations for implementing the present invention are given, but the technical scope of the present invention is not limited to the description of the following embodiments and drawings.
　（テレビジョン受像機１０の構成）
　図１は、本発明の一実施形態に係るテレビジョン受像機１０の構成を模式的に示す図である。 (Configuration of television receiver 10)
FIG. 1 is a diagram schematically showing a configuration of a television receiver 10 according to an embodiment of the present invention.
　図１において、テレビジョン受像機１０（コンテンツ再生装置）は、例えば、画面サイズ１６：９（１９２０×１０１０ドット）の液晶表示装置２２（表示パネル）を有するテレビジョン受像機の全体を示している。テレビジョン受像機１０は、バス８に接続されたＣＰＵ６、メモリ７を有しており、テレビジョン受像機１０の動作は、ＣＰＵ６及び前記メモリ７に記憶された各種の制御プログラムにより制御される。即ち、この図１に示されたテレビジョン受像機では、ＣＰＵ６を含むコンピュータ・システムによって制御されており、テレビジョン受像機をコンピュータ・システムによって動作させるためのプログラムはメモリ７に記憶されている。 In FIG. 1, a television receiver 10 (content reproduction device) is an entire television receiver having a liquid crystal display device 22 (display panel) having a screen size of 16: 9 (1920 × 1010 dots), for example. . The television receiver 10 includes a CPU 6 and a memory 7 connected to the bus 8, and the operation of the television receiver 10 is controlled by various control programs stored in the CPU 6 and the memory 7. That is, the television receiver shown in FIG. 1 is controlled by a computer system including a CPU 6, and a program for operating the television receiver by the computer system is stored in the memory 7.
　メモリ７は、通常、ＲＡＭによって構成されるが、一部にＲＯＭを含んでいてもよい。また、書き換え可能なフラッシュメモリ等を含んでいてもよい。前記メモリ７には、ＣＰＵを動作させるためのＯＳや各種の制御ソフト等が記憶され、放送波を介して受信したＥＰＧデータ等の番組情報に関するデータ、ＯＳＤ表示を行なう際に必要となるＯＳＤ用画像データ等が記憶されている。また、前記メモリ７は、各種制御動作に必要なワークメモリとして働くワーク領域を有している。 The memory 7 is usually composed of a RAM, but may include a ROM in part. Further, a rewritable flash memory or the like may be included. The memory 7 stores an OS for operating the CPU, various control software, and the like. Data relating to program information such as EPG data received via broadcast waves, and for OSD display necessary for OSD display. Image data and the like are stored. The memory 7 has a work area that functions as a work memory necessary for various control operations.
　テレビジョン受像機１０には、デジタルチューナー部１４の外に、アナログチューナー部１２が設けられており、アナログ放送も受信可能とされている。また、外部入力部３１には、ＨＤＤ、ＳＤカード等の固体メモリ、ＢＤ（ブルーレイディスク）、ＤＶＤ、ＣＤ等のディスク装置等、種々の外部機器３０が接続可能とされており、更に、テレビジョン受像機１０の本体内にもＢＤ／ＤＶＤ／ＣＤの記録／再生部３２が内蔵されている。更に、ＩＰ放送チューナー部２３が備えられており、ＩＰ放送の受信も可能とされている。 The television receiver 10 is provided with an analog tuner section 12 in addition to the digital tuner section 14, and can receive analog broadcasts. The external input unit 31 can be connected to various external devices 30 such as a solid-state memory such as an HDD and an SD card, and a disk device such as a BD (Blu-ray Disc), DVD, and CD. A BD / DVD / CD recording / reproducing unit 32 is also incorporated in the main body of the receiver 10. Further, an IP broadcast tuner unit 23 is provided, and IP broadcast reception is also possible.
　テレビジョン受像機１０は、この外、ＡＶスイッチ部１３、デジタル復調部１５、分離部（ＤＭＵＸ）１６、ビデオデコード／キャプチャ部１７、ビデオセレクタ部１８、映像処理部１９（映像処理手段）、加算回路２０、表示制御部２１（表示手段）、液晶表示装置２２、ＥＰＧ／ＯＳＤ／予約処理部２４、オーディオデコード部２５、オーディオセレクタ部２６、音声出力変換部２７（音出力手段、聴力測定用音声出力手段）、スピーカ２８、選局部３３、通信制御部３４、リモコン受光部３５（選択手段、入力手段）、設定用メモリ４１、音声パラメータ設定部４２（設定手段、補正手段）、ジャンル情報処理部４３（ジャンル特定手段）を備えている。テレビジョン受像機１０には、更に、周囲の明るさを検出するためのＯＰＣセンサ３８が設けられている。なお、ＯＰＣセンサ３８は、ローパスフィルタを含む照度センサであることがより好ましい。これにより、例えば人がセンサの前を通過するなどの一時的な変化を緩和して、照度を平滑に取得することができる。 In addition, the television receiver 10 includes an AV switch unit 13, a digital demodulation unit 15, a separation unit (DMUX) 16, a video decoding / capture unit 17, a video selector unit 18, a video processing unit 19 (video processing means), and an addition. Circuit 20, display control unit 21 (display unit), liquid crystal display device 22, EPG / OSD / reservation processing unit 24, audio decoding unit 25, audio selector unit 26, audio output conversion unit 27 (sound output unit, audio for audiometry) Output unit), speaker 28, channel selection unit 33, communication control unit 34, remote control light receiving unit 35 (selection unit, input unit), setting memory 41, voice parameter setting unit 42 (setting unit, correction unit), genre information processing unit 43 (genre specifying means). The television receiver 10 is further provided with an OPC sensor 38 for detecting ambient brightness. The OPC sensor 38 is more preferably an illuminance sensor including a low pass filter. Thereby, temporary changes, such as a person passing in front of a sensor, can be relieved and illumination intensity can be acquired smoothly.
　アナログチューナー部１２は、アナログ放送受信用のアンテナ１１を介して受信するアナログテレビ放送信号を選局するもので、選局部３３からの選局指示に応じて選局を行なう。アナログチューナー部１２からの受信信号は、ＡＶスイッチ部１３において、音声信号と映像信号とに分離され、映像信号はビデオセレクタ部１８に入力され、音声信号はオーディオセレクタ部２６に入力される。 The analog tuner unit 12 selects an analog television broadcast signal received via the antenna 11 for receiving an analog broadcast, and selects a channel according to a channel selection instruction from the channel selection unit 33. The received signal from the analog tuner unit 12 is separated into an audio signal and a video signal in the AV switch unit 13, the video signal is input to the video selector unit 18, and the audio signal is input to the audio selector unit 26.
　デジタルチューナー部１４は、デジタル放送受信用アンテナ４０を介して受信するデジタルテレビ放送信号を選局するもので、選局部３３からの選局指示に応じて受信するチャンネルの選局を行なう。デジタルチューナー部１４からの受信信号は、デジタル復調部１５にて復調され、分離部（ＤＭＵＸ）１６に送られる。 The digital tuner unit 14 selects a digital television broadcast signal received via the digital broadcast receiving antenna 40, and selects a channel to be received according to a channel selection instruction from the channel selection unit 33. The received signal from the digital tuner unit 14 is demodulated by the digital demodulation unit 15 and sent to the separation unit (DMUX) 16.
　ＩＰ放送チューナー部２３は、電話回線・ＬＡＮ等に接続された通信制御部３４を介して受信するＩＰ放送を選局するもので、選局部３３からの選局指示に応じて受信する特定のＩＰ放送を選局し、出力を分離部（ＤＭＵＸ）１６に送る。 The IP broadcast tuner unit 23 selects an IP broadcast received via a communication control unit 34 connected to a telephone line / LAN or the like, and receives a specific IP received in response to a channel selection instruction from the channel selection unit 33. The broadcast is selected and the output is sent to the separation unit (DMUX) 16.
　分離部（ＤＭＵＸ）１６は、デジタル復調部１５又はＩＰ放送チューナー部２３から入力された、多重化された映像データ、音声データを分離し、映像データをビデオデコード／キャプチャ部１７に送り、音声データをオーディオデコード部２５に送る。さらに、分離部（ＤＭＵＸ）１６は、放送信号に含まれるＥＰＧデータ等のデータを抽出し、ＥＰＧ／ＯＳＤ／予約処理部２４に送る。なお、分離部（ＤＭＵＸ）１６によって抽出された放送波信号は、必要に応じてＣＰＵ６による書き込み制御によりメモリ７に記録される。 The separation unit (DMUX) 16 separates the multiplexed video data and audio data input from the digital demodulation unit 15 or the IP broadcast tuner unit 23, sends the video data to the video decoding / capture unit 17, and the audio data Is sent to the audio decoding unit 25. Further, the separation unit (DMUX) 16 extracts data such as EPG data included in the broadcast signal and sends it to the EPG / OSD / reservation processing unit 24. The broadcast wave signal extracted by the separation unit (DMUX) 16 is recorded in the memory 7 by writing control by the CPU 6 as necessary.
　ビデオデコード／キャプチャ部１７は、分離部（ＤＭＵＸ）１６によって分離された映像データをデコードしたり、映像データに含まれるビデオ情報を静止画としてキャプチャしたりする。前記ビデオデコード／キャプチャ部１７によってデコードされた映像信号は、ビデオセレクタ部１８に送られる。ビデオセレクタ部１８には、既に説明したとおり、アナログチューナー部１２からの映像信号が入力されており、また、外部入力部３１からの映像信号も入力されている。ビデオセレクタ部１８は、ＣＰＵ６からの制御信号により、これらの入力映像信号から１つの映像信号を選んで出力し、映像処理部１９に送る。 The video decode / capture unit 17 decodes the video data separated by the separation unit (DMUX) 16 and captures video information included in the video data as a still image. The video signal decoded by the video decoding / capture unit 17 is sent to the video selector unit 18. As described above, the video signal from the analog tuner unit 12 is input to the video selector unit 18, and the video signal from the external input unit 31 is also input. The video selector unit 18 selects and outputs one video signal from these input video signals according to the control signal from the CPU 6, and sends it to the video processing unit 19.
　映像処理部１９では、入力された映像信号に対して、例えば、ノイズリダクションの処理、シャープネスの調整、コントラストの調整等の映像処理を行ない、液晶表示装置２２に対して最適な映像信号となるように映像データを変換する。 The video processing unit 19 performs video processing such as noise reduction processing, sharpness adjustment, and contrast adjustment on the input video signal so as to obtain an optimal video signal for the liquid crystal display device 22. Convert video data to.
　表示制御部２１は、受信した映像データを液晶表示装置２２に表示させるための駆動回路を含む部分であり、加算回路２０によって加算された、ＥＰＧ／ＯＳＤ／予約処理部２４からの電子番組表（ＥＰＧ；Electronic Program Guide）データ、或いは、ＯＳＤ（オン・スクリーン・ディスプレイ）データを、映像処理部１９からの映像データに加えて液晶表示装置２２に送る。液晶表示装置２２では、送られてきた映像データを画面上に表示する。 The display control unit 21 includes a drive circuit for displaying the received video data on the liquid crystal display device 22, and an electronic program table (from the EPG / OSD / reservation processing unit 24) added by the addition circuit 20 ( EPG (Electronic Program Guide) data or OSD (On Screen Display) data is sent to the liquid crystal display device 22 in addition to the video data from the video processing unit 19. The liquid crystal display device 22 displays the transmitted video data on the screen.
　オーディオデコード部２５は、分離部（ＤＭＵＸ）１６によって分離された音声データをデコードするものである。オーディオデコード部２５は、デコードした音声信号をオーディオセレクタ部２６に送る。 The audio decoding unit 25 decodes the audio data separated by the separation unit (DMUX) 16. The audio decoding unit 25 sends the decoded audio signal to the audio selector unit 26.
　オーディオセレクタ部２６では、ＡＶスイッチ部１３からの音声信号、外部入力部３１からの音声信号、及び、オーディオデコード部２５からの音声信号を受け、ＣＰＵ６からの制御によってビデオセレクタ部１８で選択された映像信号に対応した音声信号を選択し、音声出力変換部２７を介して音声信号をスピーカ２８に送る。音声出力変換部２７は、受信した音声信号をスピーカ２８での再生に最適な信号に変換してスピーカ２８に供給する。 The audio selector unit 26 receives the audio signal from the AV switch unit 13, the audio signal from the external input unit 31, and the audio signal from the audio decoding unit 25, and is selected by the video selector unit 18 under the control of the CPU 6. An audio signal corresponding to the video signal is selected, and the audio signal is sent to the speaker 28 via the audio output conversion unit 27. The audio output conversion unit 27 converts the received audio signal into a signal optimal for reproduction on the speaker 28 and supplies the converted signal to the speaker 28.
　リモコン受光部３５は、リモートコントローラ３６（以下リモコン３６という）からの光信号を受信して、前記リモコン３６からの制御信号を受け付けるためのものである。画面上の各種ボタンの選択と決定等、ユーザ（視聴者）からの指示は、このリモコン３６を介して行なわれる。 The remote control light receiving unit 35 receives an optical signal from a remote controller 36 (hereinafter referred to as a remote controller 36) and receives a control signal from the remote controller 36. An instruction from the user (viewer) such as selection and determination of various buttons on the screen is performed via the remote controller 36.
　ＥＰＧ／ＯＳＤ／予約処理部２４は、定期的に更新保存されたＥＰＧデータに基づき電子番組表を作成し、また、メモリ７に予め保存されているＯＳＤデータを描画する。前記のＯＳＤデータとは、例えば、予めメモリ７に記憶された設定メニュー画面、音量ケージ、現在時刻、選局チャンネル等の各種情報を描画するためのデータである。また、ＥＰＧ／ＯＳＤ／予約処理部２４は、前記の電子番組表を利用して番組の予約処理等を行なう。 The EPG / OSD / reservation processing unit 24 creates an electronic program guide based on EPG data periodically updated and stored, and draws OSD data stored in the memory 7 in advance. The OSD data is data for drawing various information such as a setting menu screen, a volume cage, a current time, a channel selection, and the like stored in advance in the memory 7, for example. The EPG / OSD / reservation processing unit 24 performs program reservation processing using the electronic program guide.
　通信制御部３４は、電話回線、ＬＡＮ、インターネット等のネットワーク網を介して通信を確立させるように制御を行なう。 The communication control unit 34 performs control so as to establish communication via a network such as a telephone line, a LAN, or the Internet.
　設定用メモリ４１には、後述する「お好み音声設定」時に用いられる各種のデータ（選択項目、音声信号、および聴力測定用音声信号）が予め格納されている。 In the setting memory 41, various data (selection items, audio signals, and audio signals for hearing measurement) used in “favorite audio setting” to be described later are stored in advance.
　音声パラメータ設定部４２は、音声出力変換部２７が音声信号を処理する際に用いる音声パラメータを設定する。 The audio parameter setting unit 42 sets audio parameters used when the audio output conversion unit 27 processes an audio signal.
　ジャンル情報処理部４３は、分離部１６、外部入力部３１、記録／再生部３２のうち、コンテンツを受信した部材から、そのコンテンツのジャンル情報を判別して取得する。 The genre information processing unit 43 discriminates and acquires the genre information of the content from the member that has received the content among the separation unit 16, the external input unit 31, and the recording / playback unit 32.
　例えば、デジタル放送においては、ジャンル情報が大分類、中分類と分類されて関連付けられている。大分類としては、例えば、「ニュース／報道」、「情報／ワイドショー」、「バラエティ」、「映画」、「スポーツ」等がある。中分類としては、例えば大分類が「ニュース／報道」の場合は「定時・総合」、「ローカル／地域」、「天気」等がある。一般に一つの放送番組（コンテンツ）には、複数の大分類のジャンル情報が関連付けられている。例えば、スポーツニュースの場合は「ニュース／報道」、「スポーツ」の大分類のジャンル情報が関連付けられており、さらに、これらに属する中分類のジャンル情報がいくつか関連付けられている。ジャンル情報処理部４３は、分離部１６、外部入力部３１、記録／再生部３２のいずれかが、これらのジャンル情報が関連付けられたコンテンツを受信したときに、当該コンテンツに関連付けられたジャンル情報を取得する。ここで、取得するジャンル情報は、当該コンテンツに関連付けられたジャンル情報の一部でもよいし全部でもよい。また、ジャンル情報処理部４３は、コンテンツのフレーム周波数等から、例えば、フィルム由来であるか否か等を判断することもできる。 For example, in digital broadcasting, genre information is classified and associated with major classification and middle classification. The major classification includes, for example, “news / report”, “information / wide show”, “variety”, “movie”, “sports”, and the like. As the middle category, for example, when the major category is “news / report”, there are “regular / comprehensive”, “local / region”, “weather” and the like. In general, one broadcast program (content) is associated with a plurality of large categories of genre information. For example, in the case of sports news, genre information of large categories “news / report” and “sports” is associated, and further, some genre information of medium categories belonging to these are associated. When any of the separation unit 16, the external input unit 31, and the recording / playback unit 32 receives content associated with these genre information, the genre information processing unit 43 displays genre information associated with the content. get. Here, the genre information to be acquired may be a part or all of the genre information associated with the content. Further, the genre information processing unit 43 can determine, for example, whether or not it is derived from a film from the frame frequency of the content.
　なお、本実施形態ではテレビジョン受像機が受信するコンテンツがデジタル放送である場合について説明するが、アナログ放送でも同様の処理が可能である。つまり、アナログ放送の場合は、音声解析及び画像解析等を行なって番組の種類を表すキーワードをジャンル情報として抽出することによって、ジャンル情報を取得することが可能である。 In the present embodiment, the case where the content received by the television receiver is a digital broadcast will be described, but the same processing can be performed for an analog broadcast. That is, in the case of analog broadcasting, it is possible to acquire genre information by extracting a keyword representing the type of program as genre information by performing audio analysis and image analysis.
　（初期設定画面）
　図２は、コンテンツを再生する際の音声の音質を設定するか否かをユーザに問い合わせる画面を示す図である。 (Initial setting screen)
FIG. 2 is a diagram showing a screen for inquiring the user whether or not to set the sound quality of the sound when reproducing the content.
　ユーザがテレビジョン受像機１０を購入してから初めて電源を入れると、図２に示す画面が表示される。これは、テレビジョン受像機１０において再生可能なコンテンツ（例えば放送番組）の音質を初期設定するか否かをユーザに問い合わせる画面である。図２の画面を視認したユーザは、リモコン３６を操作して「はい」または「いいえ」を選択する。ユーザが「はい」を選択すると、テレビジョン受像機１０はお好み音質の設定処理を開始する。「お好み音質の設定」とは、ユーザの嗜好に応じた音質特性を表すパラメータを、簡単な操作によって、コンテンツの音声用のパラメータとして設定する処理のことである。 When the user turns on the power for the first time after purchasing the television receiver 10, the screen shown in FIG. 2 is displayed. This is a screen for inquiring the user as to whether or not to initially set the sound quality of content (for example, a broadcast program) that can be played back on the television receiver 10. The user who visually recognizes the screen of FIG. 2 operates the remote controller 36 to select “Yes” or “No”. When the user selects “Yes”, the television receiver 10 starts a favorite sound quality setting process. “Setting the favorite sound quality” is a process of setting a parameter representing a sound quality characteristic according to the user's preference as a parameter for the sound of the content by a simple operation.
　（中音の設定）
　図３は、お好み音質設定時に、ユーザに中音の設定を選択させる際の画面を示す図面である。この図に示すように、テレビジョン受像機１０の表示制御部２１は、まずユーザに中音の設定を促す画面を液晶表示装置２２に表示する。ここでいう「中音」とは、中域（音声帯域）の周波数帯域における音を意図している。具体的には、たとえば略１００Ｈｚから８ｋＨｚまでの周波数帯域の音が、中音に相当する。 (Medium setting)
FIG. 3 is a diagram showing a screen when the user selects the middle sound setting when setting the favorite sound quality. As shown in this figure, the display control unit 21 of the television receiver 10 first displays on the liquid crystal display device 22 a screen that prompts the user to set medium sound. The term “medium sound” here means a sound in the middle frequency band (voice band). Specifically, for example, a sound in a frequency band from approximately 100 Hz to 8 kHz corresponds to a medium sound.
　表示制御部２１は、中域においては互いに異なると共に、中域以外の帯域（低域および高域）では互いに等しい複数の周波数特性のうちいずれかを有する音を個別に表現する複数の選択候補を、表示制御部２１に表示する。図３では、「クッキリした音質」、「抜けの良い音質」、「標準的な音質」、「やわらかい音質」、および「背景音になじんだ音質」という５つのテキストが、当該複数の選択候補に相当する。デフォルトでは「標準的な音質」の項目が選択されている。ユーザは、リモコン３６を操作して、これら５つの選択候補の中から１つを選択する。現在選択中の項目は、ハイライト表示される。 The display control unit 21 displays a plurality of selection candidates that individually express sounds having any one of a plurality of frequency characteristics that are different from each other in the mid-range and that are equal to each other in the bands other than the mid-range (low range and high range). Is displayed on the display control unit 21. In FIG. 3, five texts “clear sound quality”, “excellent sound quality”, “standard sound quality”, “soft sound quality”, and “sound quality suitable for background sound” are selected as the plurality of selection candidates. Equivalent to. By default, the “standard sound quality” item is selected. The user operates the remote controller 36 to select one of these five selection candidates. The currently selected item is highlighted.
　表示制御部２１は、図３の画面において、選択候補ごとに、当該選択候補を選んだ場合の音質設定の効果を説明する文章を、当該選択候補の隣に表示する。ユーザは、各文章を読むことによって、各選択候補を選んだ場合の音質改善の効果を事前に知ることができる。 The display control unit 21 displays, for each selection candidate, a sentence explaining the effect of sound quality setting when the selection candidate is selected next to the selection candidate on the screen of FIG. The user can know in advance the effect of sound quality improvement when selecting each selection candidate by reading each sentence.
　図３の画面が表示されているとき、音声出力変換部２７が、ユーザが選択した選択項目に対応する音声信号（ＭＰ３またはＡＡＣ形式）を、音声出力変換部２７が設定用メモリ４１から読み出し、スピーカ２８に出力する。これにより、選択中の項目に対応する音がスピーカ２８から出力される。このとき音を出すのは内蔵のスピーカ２８に限定する。すなわち、外付けのスピーカには音を出さない。音のボリュームは適宜変更できる。現在のボリューム値は画面に表示される。ユーザが項目の選択を変更すれば、それに追随してスピーカ２８から出力される音も変更される。このとき、新たな音は先頭から再生される。この音を聞くことによって、ユーザは、ある項目の選択を確定した場合、コンテンツの中音がどのように聞こえるのかを、事前に把握することができる。 When the screen of FIG. 3 is displayed, the audio output conversion unit 27 reads the audio signal (MP3 or AAC format) corresponding to the selection item selected by the user from the setting memory 41, Output to the speaker 28. Thereby, a sound corresponding to the item being selected is output from the speaker 28. At this time, the sound is limited to the built-in speaker 28. That is, no sound is emitted from an external speaker. The sound volume can be changed as appropriate. The current volume value is displayed on the screen. If the user changes the selection of the item, the sound output from the speaker 28 is changed accordingly. At this time, a new sound is reproduced from the beginning. By listening to this sound, the user can grasp in advance how the middle sound of the content is heard when the selection of a certain item is confirmed.
　音声出力変換部２７は、中音として声をスピーカ２８から出力させる。具体的には、人の話し声を含む何らかの音（たとえば会話またはスピーチ）を出力させる。これによりユーザは、コンテンツの中音の音質がどのように改善されるのかを、確実に把握することができる。 The voice output conversion unit 27 outputs a voice from the speaker 28 as a medium sound. Specifically, some sound (for example, conversation or speech) including human speech is output. Thereby, the user can surely grasp how the sound quality of the medium sound of the content is improved.
　ユーザは、複数の項目のうちいずれか一つを選択し、最終的に当該選択を確定させる。たとえばリモコン３６の決定ボタンを押下すれば、選択中の項目を確定させることができる。こうして選択された項目を特定する情報が、リモコン受光部３５を通じて音声パラメータ設定部４２に伝えられる。 The user selects one of a plurality of items and finally confirms the selection. For example, when an enter button on the remote controller 36 is pressed, the item being selected can be confirmed. Information for specifying the item thus selected is transmitted to the voice parameter setting unit 42 through the remote control light receiving unit 35.
　（低音／高音の設定）
　テレビジョン受像機１０は、中音の設定が完了すると、次に低音および高音のお好み音質設定を実行する。図４は、お好み音質設定時に、ユーザに低音および高音の設定を選択させる際の画面を示す図面である。この図に示すように、テレビジョン受像機１０の表示制御部２１は、ユーザに低音および高音の設定を促す画面を液晶表示装置２２に表示する。ここでいう「低音」とは、低域の周波数帯域における音を意図している。具体的には、たとえば略１０Ｈｚから１００Ｈｚまでの周波数帯域の音が、低音に相当する。また「高音」とは、高域の周波数帯域における音を意図している。具体的には、たとえば略８ｋＨｚから２０ｋＨｚまでの周波数帯域の音が、高音に相当する。 (Bass / treble setting)
When the setting of the medium sound is completed, the television receiver 10 next performs the favorite sound quality setting of the low sound and the high sound. FIG. 4 is a diagram showing a screen when the user selects the setting of the low tone and the high tone when the favorite sound quality is set. As shown in this figure, the display control unit 21 of the television receiver 10 displays a screen for prompting the user to set a low tone and a high tone on the liquid crystal display device 22. The term “bass” as used herein means a sound in a low frequency band. Specifically, for example, sound in a frequency band from approximately 10 Hz to 100 Hz corresponds to bass. In addition, “treble” means a sound in a high frequency band. Specifically, for example, a sound in a frequency band from about 8 kHz to 20 kHz corresponds to a high tone.
　表示制御部２１は、低域および高域においては互いに異なると共に、低域および高域以外の帯域（中域）では互いに等しい複数の周波数特性のうちいずれかを有する音を個別に表現する複数の選択項目を、表示制御部２１に表示する。図４では、「さらに迫力のある音質」、「迫力のある音質」、「標準的な音質」、「声を重視した音質」、および「さらに声を重視した音質」という５つのテキストが、当該複数の選択項目に相当する。デフォルトでは「標準的な音質」の項目が選択されており、ユーザは、リモコン３６を操作して、これら５つの選択項目の中から１つを選択する。現在選択中の項目は、ハイライト表示される。 The display control unit 21 has a plurality of sounds that individually express sounds having any one of a plurality of frequency characteristics that are different from each other in the low frequency band and the high frequency band and that are equal to each other in a band (middle frequency band) other than the low frequency band and the high frequency band. The selected item is displayed on the display control unit 21. In FIG. 4, five texts of “more powerful sound quality”, “powerful sound quality”, “standard sound quality”, “sound quality emphasizing voice”, and “sound quality emphasizing voice” are Corresponds to multiple selection items. By default, the item “standard sound quality” is selected, and the user operates the remote controller 36 to select one of these five selection items. The currently selected item is highlighted.
　なお、表示制御部２１は、図５の画面において、選択項目ごとに、当該選択項目を選んだ場合の効果を説明する文章を、当該選択項目の隣に表示する。ユーザは、各文章を読むことによって、各選択項目を選んだ場合の音質改善の効果を事前に知ることができる。 In addition, the display control part 21 displays the text explaining the effect at the time of selecting the said selection item for every selection item on the screen of FIG. 5 next to the said selection item. By reading each sentence, the user can know in advance the effect of sound quality improvement when each selection item is selected.
　テレビジョン受像機１０では、ユーザが選択した項目に対応する音を再生する。具体的には、現在選択中の項目に対応する音声信号（ＭＰ３またはＡＡＣ形式）を、音声出力変換部２７が設定用メモリ４１から読み出し、スピーカ２８から出力させる。このとき音を出すのは内蔵のスピーカ２８に限定する。すなわち、外付けのスピーカには音を出さない。音のボリュームは適宜変更できる。現在のボリューム値は画面に表示される。ユーザが項目の選択を変更すれば、それに追随してスピーカ２８から出力される音も変更される。このとき、新たな音は先頭から再生される。この音を聞くことによって、ユーザは、ある項目を設定した場合、コンテンツの低音および高音がどのように聞こえるのかを、事前に把握することができる。 The television receiver 10 reproduces sound corresponding to the item selected by the user. Specifically, the audio output conversion unit 27 reads out the audio signal (MP3 or AAC format) corresponding to the currently selected item from the setting memory 41 and outputs it from the speaker 28. At this time, the sound is limited to the built-in speaker 28. That is, no sound is emitted from an external speaker. The sound volume can be changed as appropriate. The current volume value is displayed on the screen. If the user changes the selection of the item, the sound output from the speaker 28 is changed accordingly. At this time, a new sound is reproduced from the beginning. By listening to this sound, the user can know in advance how the low and high sounds of the content are heard when a certain item is set.
　音声出力変換部２７は、低音および高音として音楽をスピーカ２８から出力させる。音楽は低音および高音の成分を多く含んでいるので、低音および高音の周波数特性を変えれば、音楽の聞こえたかたも大きく変わってくる。したがってユーザは、低音および高音の音質がどのように改善されるのかを、項目の選択を確定させる前に確実に把握することができる。 The audio output conversion unit 27 outputs music from the speaker 28 as low and high sounds. Since music contains a lot of bass and treble components, changing the frequency characteristics of bass and treble will greatly change how the music is heard. Therefore, the user can surely grasp how the sound quality of the bass and treble is improved before the selection of the item is confirmed.
　ユーザは、複数の項目のうちいずれか一つを選択し、最終的に、当該選択を確定させる。たとえば、リモコン３６の決定ボタンを押下すれば、選択中の項目を確定させることができる。こうして選択された項目がどれなのかは、テレビジョン受像機１０の音声パラメータ設定部４２に伝えられる。 The user selects one of a plurality of items and finally confirms the selection. For example, if a determination button on the remote controller 36 is pressed, the item being selected can be confirmed. Which item is selected in this way is notified to the audio parameter setting unit 42 of the television receiver 10.
　（設定完了画面）
　ユーザが低音および高音の設定を確定させると、表示制御部２１は、図５に示す画面を表示する。図５は、お好み音質設定を完了するか否かをユーザに促す画面を示す図である。図５の例では、表示制御部２１は、ユーザが選択した設定項目（２つ）をそれぞれ表示すると共に、設定を完了するか、それとも設定をしなおすかの決定を促す画面を表示する。ユーザが「完了」を選択すれば、テレビジョン受像機１０はお好み音質設定を完了させる。一方、ユーザが「設定しなおす」を選択すれば、テレビジョン受像機１０はお好み音質設定をやり直す。 (Setting completion screen)
When the user confirms the setting of bass and treble, the display control unit 21 displays a screen shown in FIG. FIG. 5 is a diagram showing a screen that prompts the user to complete the preference sound quality setting. In the example of FIG. 5, the display control unit 21 displays the setting items (two) selected by the user, and displays a screen that prompts the user to decide whether to complete the setting or to reset the setting. If the user selects “Complete”, the television receiver 10 completes the preference sound quality setting. On the other hand, if the user selects “reset”, the television receiver 10 redoes the preference sound quality setting.
　（中音用の音声パラメータの詳細）
　図６は、中音のお好み音質設定時に画面に表示される各選択項目に個別にあらかじめ関連付けられている複数のパラメータを格納したテーブルを示す図である。この図に示すテーブルは、５つの選択項目のそれぞれについて、各選択項目によって表現される音の周波数特性を表すパラメータを複数格納している。当該テーブルの最上列にある数字は、図３に示す選択項目の画面上からの表示順を表す。すなわち、たとえば「１．」の列には「クッキリした音声」の選択項目に関するパラメータが格納されている。 (Details of mid-sound audio parameters)
FIG. 6 is a diagram showing a table storing a plurality of parameters individually associated in advance with each selection item displayed on the screen when setting the favorite sound quality of the medium sound. The table shown in this figure stores a plurality of parameters representing the frequency characteristics of the sound represented by each selection item for each of the five selection items. The numbers in the top row of the table indicate the display order of the selection items shown in FIG. 3 from the screen. That is to say, for example, the parameter “1.” stores parameters related to the selection item of “clear sound”.
　本実施形態では、図６に示すパラメータは、パラメトリックイコライザーに設定可能な値である。図６に示すように、図３に示す一つの選択項目に対して、全部で１０個のパラメータがあらかじめ関連付けられている。具体的には、「Ｌ／Ｒバンド０」は、パラメトリックイコライザーの左右チャンネルの最初のバンドに設定される値を示し、「Ｌ／Ｒバンド１」は、パラメトリックイコライザーの左右チャンネルの２つ目のバンドに設定される値を示す。バンド０とバンド１のパラメトリックイコライザーは、カスケード接続されて構成される。「Ｓ／Ｗ０」は、パラメトリックイコライザーのサブウーファーの最初のバンドに設定される値を示す。これらの各項目に対して、それぞれゲイン、中心周波数、および先鋭度のパラメータがある。なお、「ボリューム」は、全周波数帯域の音声値を一律に変更する値を示す。 In the present embodiment, the parameters shown in FIG. 6 are values that can be set in the parametric equalizer. As shown in FIG. 6, a total of ten parameters are associated in advance with respect to one selection item shown in FIG. Specifically, “L / R band 0” indicates a value set to the first band of the left and right channels of the parametric equalizer, and “L / R band 1” indicates the second channel of the left and right channels of the parametric equalizer. Indicates the value set for the band. The band 0 and band 1 parametric equalizers are cascaded. “S / W0” indicates a value set in the first band of the subwoofer of the parametric equalizer. For each of these items, there are parameters for gain, center frequency, and sharpness, respectively. “Volume” indicates a value for uniformly changing the sound value of all frequency bands.
　図７は、図６に示す各一列分のパラメータに基づく各周波数特性の例を示す図である。図７（ａ）～（ｅ）は、図６のテーブルの「１．」列～「５．」列に対応している。 FIG. 7 is a diagram showing an example of each frequency characteristic based on the parameters for each column shown in FIG. 7A to 7E correspond to the “1.” column to the “5.” column of the table of FIG.
　（低音および高音用の音声パラメータの詳細）
　図８は、低音および高音のお好み音質設定時に画面に表示される各選択項目に個別にあらかじめ関連付けられている複数のパラメータを格納しているテーブルを示す図である。この図に示すテーブルは、５つの選択項目のそれぞれについて、各選択項目によって表現される音の周波数特性を表すパラメータを複数含んでいる。当該テーブルの最上列にある数字は、図４に示す選択項目の画面上からの表示順を表す。すなわち、たとえば「１．」の列には「さらに迫力のある音声」の選択項目に関するパラメータが格納されている。 (Details of audio parameters for bass and treble)
FIG. 8 is a diagram showing a table storing a plurality of parameters individually associated in advance with each selection item displayed on the screen when setting the favorite sound quality of bass and treble. The table shown in this figure includes a plurality of parameters representing the frequency characteristics of the sound represented by each selection item for each of the five selection items. The numbers in the top row of the table represent the display order of the selection items shown in FIG. 4 from the screen. That is, for example, the parameter “1.” stores parameters related to the selection item of “More powerful voice”.
　具体的には、「高音」は高域のゲインを表し、一方、「低音」は低域のゲインを表す。図８に示すフィルタは、パラメトリックイコライザーと同様に、バイクアッドのフィルタ等で構成され、ゲイン、中心周波数、および先鋭度をパラメータにもっている。一般的には低域側がLowShelfフィルタと呼ばれ、一方、高域側はhighShelfフィルタと呼ばれている。 Specifically, “treble” represents high-frequency gain, while “low” represents low-frequency gain. The filter shown in FIG. 8 is composed of a biquad filter or the like, like a parametric equalizer, and has gain, center frequency, and sharpness as parameters. Generally, the low frequency side is called a LowShelf filter, while the high frequency side is called a highShelf filter.
　図９は、図８に示す各一列分のパラメータに基づく各周波数特性の例を示す図である。図９（ａ）～（ｅ）は、図８のテーブルの「１．」列～「５．」列に対応している。 FIG. 9 is a diagram showing an example of each frequency characteristic based on the parameters for each column shown in FIG. 9A to 9E correspond to the “1.” column to the “5.” column in the table of FIG.
　（パラメータの設定）
　テレビジョン受像機１０では、音声パラメータ設定部４２が、ユーザによって選択された項目に応じたパラメータを、コンテンツの音声を出力する際に用いるパラメータとして設定する。具体的には、まず、中音のお好み音質設定時にユーザによって選択された項目に対応するパラメータを、図６に示すテーブルから読み出す。そして、読み出したパラメータを、コンテンツの音声のうち中音用のパラメータとして設定する。次に、低音／高音のお好み音質設定時にユーザによって選択された項目に対応するパラメータを、図８に示すテーブルから読み出す。そして、読み出したパラメータを、コンテンツの音声のうち低音および高音用のパラメータとして設定する。 (Parameter setting)
In the television receiver 10, the audio parameter setting unit 42 sets a parameter corresponding to the item selected by the user as a parameter used when outputting the audio of the content. Specifically, first, parameters corresponding to the item selected by the user when setting the preferred sound quality of the medium sound are read from the table shown in FIG. Then, the read parameter is set as a medium sound parameter in the audio of the content. Next, the parameter corresponding to the item selected by the user when setting the favorite sound quality of bass / treble is read from the table shown in FIG. Then, the read parameters are set as parameters for low and high sounds in the audio of the content.
　音声パラメータ設定部４２は、設定したパラメータを音声出力変換部２７に伝える。これにより音声出力変換部２７は、音声パラメータ設定部４２から伝えられたパラメータを用いて、コンテンツの音声を処理し、処理後の音声をスピーカ２８に出力する。これにより、お好み音質設定時にユーザによって選択された２つの項目に応じたパラメータが反映された音声が、スピーカ２８から出力される。 The voice parameter setting unit 42 transmits the set parameters to the voice output conversion unit 27. Thereby, the audio output conversion unit 27 processes the audio of the content using the parameters transmitted from the audio parameter setting unit 42 and outputs the processed audio to the speaker 28. As a result, the sound reflecting the parameters according to the two items selected by the user when setting the favorite sound quality is output from the speaker 28.
　以上のように、テレビジョン受像機１０では、ユーザは２つの選択項目を選ぶだけで、簡単に、コンテンツの音声の音質設定を完了することができる。 As described above, in the television receiver 10, the user can easily complete the sound quality setting of the content simply by selecting two selection items.
　（コンテンツのジャンルに基づく補正）
　ユーザがコンテンツの視聴を開始した後、音声パラメータ設定部４２は、コンテンツのジャンルに応じたパラメータ（周波数特性、音量、および音場等）を用いて、お好み音質設定時に設定したパラメータを補正しても良い。 (Correction based on content genre)
After the user starts viewing the content, the audio parameter setting unit 42 corrects the parameters set at the time of setting the favorite sound quality using parameters (frequency characteristics, volume, sound field, etc.) according to the genre of the content. May be.
　テレビジョン受像機１０では、ジャンル情報処理部４３が、取得したジャンル情報を音声パラメータ設定部４２に出力する。音声パラメータ設定部４２は、入力されたジャンル情報に基づき、コンテンツのジャンルを特定する。そして、特定したジャンルに対応するパラメータを、設定用メモリ４１から読み出す。図１０は、コンテンツのジャンルに応じた音質パラメータの一覧を示す図である。ジャンルごとに、異なるパラメータが対応している。このような、ジャンルの種類とパラメータの値とは、互いに関連付けられて、予め設定用メモリ４１に格納されている。 In the television receiver 10, the genre information processing unit 43 outputs the acquired genre information to the audio parameter setting unit 42. The audio parameter setting unit 42 specifies the genre of the content based on the input genre information. Then, the parameter corresponding to the specified genre is read from the setting memory 41. FIG. 10 is a diagram showing a list of sound quality parameters corresponding to the genre of content. Different parameters correspond to each genre. Such genre types and parameter values are associated with each other and stored in the setting memory 41 in advance.
　こうして、音声パラメータ設定部４２は、お好み音質設定時に設定したパラメータを、コンテンツのジャンルに対応するパラメータによって補正する。具体的には、たとえば、パラメータの値同士を合成して新たな値を得て、この値を、コンテンツの音声処理時に用いるパラメータとして設定する。 Thus, the audio parameter setting unit 42 corrects the parameter set at the time of setting the favorite sound quality with the parameter corresponding to the genre of the content. Specifically, for example, parameter values are combined with each other to obtain a new value, and this value is set as a parameter used during audio processing of content.
　以上の構成によれば、テレビジョン受像機１０は、ユーザの嗜好およびコンテンツのジャンルの両方を反映させた音声を、コンテンツの再生時に出力することができる。したがって、ジャンルごとにユーザにとって最適な音声を出力できる。 According to the above configuration, the television receiver 10 can output audio reflecting both the user's preference and the content genre when the content is reproduced. Therefore, it is possible to output the optimum voice for the user for each genre.
　（ユーザの聴力に基づく設定）
　テレビジョン受像機１０は、ユーザの聴力に応じたパラメータを、コンテンツの音声用のパラメータとして設定することも出来る。この例を、図１１～図１４を参照して以下に説明する。 (Setting based on user's hearing)
The television receiver 10 can also set a parameter corresponding to the user's hearing as a parameter for audio of content. This example will be described below with reference to FIGS.
　図１１は、ユーザの聴力を測定するための画面を示す図である。ユーザがテレビジョン受像機１０を購入してから初めて起動した後、テレビジョン受像機１０は、ユーザにお好み音質設定用の選択項目を提示する前に、図１１の画面を表示する。その際、音声出力変換部２７が、規定の聴力測定用音声を一定のボリュームでスピーカ２８から出力させる。当該聴力測定用音声は、人の話し声（会話またはスピーチ）である。 FIG. 11 is a diagram showing a screen for measuring the user's hearing ability. After the user purchases the television receiver 10 for the first time after the purchase, the television receiver 10 displays the screen shown in FIG. 11 before presenting selection items for setting the favorite sound quality to the user. At that time, the audio output conversion unit 27 outputs a specified audio for measuring hearing ability from the speaker 28 with a constant volume. The audio for measuring hearing ability is a person's speaking voice (conversation or speech).
　図１１に示すように、テレビジョン受像機１０は、ユーザに、聴力測定用音声が聞こえたか否かを入力させる。ユーザは、画面上の「はい」または「いいえ」を選択することによって、聴取結果を入力する。入力された聴取結果は、リモコン受光部３５を通じて表示制御部２１に伝えられる。聴取結果の入力後、テレビジョン受像機１０は、お好み音質の設定を開始する。 As shown in FIG. 11, the television receiver 10 allows the user to input whether or not the sound for hearing measurement has been heard. The user inputs the listening result by selecting “Yes” or “No” on the screen. The input listening result is transmitted to the display control unit 21 through the remote control light receiving unit 35. After inputting the listening result, the television receiver 10 starts setting the favorite sound quality.
　表示制御部２１は、お好み音質の設定時、ユーザによる入力内容に応じた複数の選択項目を液晶表示装置２２に表示する。具体的には、ユーザが「はい」を選択した場合、表示制御部２１は、若者向けの複数の選択項目を表示する（図１２）。図１２は、中音の音質設定時に表示される、若者向けの複数の選択項目を含んだ画面を示す図である。一方、ユーザが「いいえ」を選択した場合、表示制御部２１は、高齢者向けの複数の選択項目を表示する（図１３）。図１３は、中音の音質設定時に表示される、高齢者向けの複数の選択項目を含んだ画面を示す図である。 The display control unit 21 displays a plurality of selection items on the liquid crystal display device 22 according to the input contents by the user when setting the favorite sound quality. Specifically, when the user selects “Yes”, the display control unit 21 displays a plurality of selection items for young people (FIG. 12). FIG. 12 is a diagram showing a screen including a plurality of selection items for young people displayed when setting the sound quality of medium sound. On the other hand, when the user selects “No”, the display control unit 21 displays a plurality of selection items for the elderly (FIG. 13). FIG. 13 is a diagram showing a screen including a plurality of selection items for elderly people displayed when setting the sound quality of medium sound.
　図１２に示す各選択項目によって表現される音の周波数特性の振幅の平均値は、ある一定の値を取る。一方、図１３に示す各選択項目によって表現される音の周波数特性の振幅の平均値は、当該ある一定の値に比べてより高い値を取る。したがって、図１２に示す各選択項目にあらかじめ関連付けられている複数のパラメータのうち振幅の平均値は、図１３に示す各選択項目にあらかじめ関連付けられている複数のパラメータのうち振幅の平均値よりも大きくなっている。 The average value of the amplitude of the frequency characteristic of the sound expressed by each selection item shown in FIG. 12 takes a certain value. On the other hand, the average value of the amplitude of the frequency characteristic of the sound expressed by each selection item shown in FIG. 13 takes a higher value than the certain value. Therefore, the average value of the amplitudes among the plurality of parameters previously associated with each selection item shown in FIG. 12 is greater than the average value of the amplitudes among the plurality of parameters previously associated with each selection item shown in FIG. It is getting bigger.
　以上の構成によれば、テレビジョン受像機１０は、高齢者と判定されたユーザに対しては、若者と判定されたユーザに対して、より大きな音で聞こえる音の設定を選択させる。これにより、ユーザの聴力に応じた最適な音質設定が可能になる。 According to the above configuration, the television receiver 10 causes the user who is determined to be an elderly person to select the setting of sound that can be heard with a louder sound for the user who is determined to be a youth. Thereby, the optimal sound quality setting according to a user's hearing ability is attained.
　テレビジョン受像機１０は、中音の設定が完了すると、次に低音および高音のお好み音質設定を実行する。その際、図１４の画面を表示する。図１４は、お好み音質設定時に、ユーザに低音および高音の設定を選択させる際の画面を示す図面である。図１４では、７つの選択項目を表示する。この図に示すように、表示制御部２１は、聴力の判定結果によらず、低音および高音をユーザに選択させる際には共通の選択項目を含む画面を液晶表示装置２２に表示する。低音および高音の振幅を若者向けと高齢者向けとで変えることによる効果が、中音に比べると低いことが理由である。なお、表示制御部２１は、中音の設定時と同じように、低音および高音用のお好み音質の設定時に、ユーザによって入力された聴取結果に応じた選択項目を液晶表示装置２２に表示してもよい。 When the setting of the medium sound is completed, the television receiver 10 next executes the favorite sound quality setting of the low sound and the high sound. At that time, the screen of FIG. 14 is displayed. FIG. 14 is a diagram illustrating a screen when the user selects the setting of the low tone and the high tone when setting the favorite sound quality. In FIG. 14, seven selection items are displayed. As shown in this figure, the display control unit 21 displays a screen including common selection items on the liquid crystal display device 22 when the user selects low and high sounds regardless of the hearing determination result. This is because the effect of changing the amplitude of bass and treble for young people and elderly people is lower than that of medium sounds. Note that the display control unit 21 displays selection items according to the listening result input by the user on the liquid crystal display device 22 when setting the favorite sound quality for bass and treble as in the case of setting the middle tone. May be.
　本発明は上述した各実施形態に限定されるものではない。当業者は、請求項に示した範囲内において、本発明をいろいろと変更できる。すなわち、請求項に示した範囲内において、適宜変更された技術的手段を組み合わせれば、新たな実施形態が得られる。 The present invention is not limited to the embodiments described above. Those skilled in the art can make various modifications to the present invention within the scope of the claims. That is, a new embodiment can be obtained by combining appropriately changed technical means within the scope of the claims.
　たとえば、以上の説明では、特に、テレビジョン受像機を例にして述べているが、その他にも、テレビを視聴可能とした携帯機器、例えば、携帯電話、カーナビゲーションシステム、携帯ゲーム端末機等においてテレビを受信する場合にも本願の発明に従った表示方法を適用できることは明らかである。 For example, in the above description, a television receiver has been described as an example, but in addition, in portable devices that can watch television, such as mobile phones, car navigation systems, portable game terminals, etc. It is clear that the display method according to the present invention can be applied also when receiving television.
　（プログラム及び記録媒体）
　最後に、テレビジョン受像機１０に含まれている各部は、ハードウェアロジックによって構成すればよい。または、次のように、ＣＰＵ（Ｃｅｎｔｒａｌ　Ｐｒｏｃｅｓｓｉｎｇ　Ｕｎｉｔ）を用いてソフトウェアによって実現してもよい。 (Program and recording medium)
Finally, each unit included in the television receiver 10 may be configured by hardware logic. Alternatively, it may be realized by software using a CPU (Central Processing Unit) as follows.
　すなわちテレビジョン受像機１０は、各機能を実現するプログラムの命令を実行するＣＰＵ、このプログラムを格納したＲＯＭ（Ｒｅａｄ　Ｏｎｌｙ　Ｍｅｍｏｒｙ）、上記プログラムを実行可能な形式に展開するＲＡＭ（Ｒａｎｄｏｍ　Ａｃｃｅｓｓ　Ｍｅｍｏｒｙ）、及び、上記プログラム及び各種データを格納するメモリ等の記憶装置（記録媒体）を備えている。この構成により、本発明の目的は、所定の記録媒体によっても、達成できる。 That is, the television receiver 10 includes a CPU that executes instructions of a program that realizes each function, a ROM (Read Only Memory) that stores the program, a RAM (Random Access Memory) that expands the program into an executable format, And a storage device (recording medium) such as a memory for storing the program and various data. With this configuration, the object of the present invention can be achieved by a predetermined recording medium.
　この記録媒体は、上述した機能を実現するソフトウェアであるテレビジョン受像機１０のプログラムのプログラムコード（実行形式プログラム、中間コードプログラム、ソースプログラム）をコンピュータで読み取り可能に記録していればよい。テレビジョン受像機１０に、この記録媒体を供給する。これにより、コンピュータとしてのテレビジョン受像機１０（またはＣＰＵやＭＰＵ）が、供給された記録媒体に記録されているプログラムコードを読み出し、実行すればよい。 This recording medium only needs to record the program code (execution format program, intermediate code program, source program) of the program of the television receiver 10 which is software that realizes the above-described functions so that it can be read by a computer. This recording medium is supplied to the television receiver 10. Thus, the television receiver 10 (or CPU or MPU) as a computer may read and execute the program code recorded on the supplied recording medium.
　プログラムコードをテレビジョン受像機１０に供給する記録媒体は、特定の構造または種類のものに限定されない。すなわちこの記録媒体は、たとえば、磁気テープやカセットテープ等のテープ系、フロッピー（登録商標）ディスク／ハードディスク等の磁気ディスクやＣＤ－ＲＯＭ／ＭＯ／ＭＤ／ＤＶＤ／ＣＤ－Ｒ等の光ディスクを含むディスク系、ＩＣカード（メモリカードを含む）／光カード等のカード系、あるいはマスクＲＯＭ／ＥＰＲＯＭ／ＥＥＰＲＯＭ／フラッシュＲＯＭ等の半導体メモリ系などとすることができる。 The recording medium that supplies the program code to the television receiver 10 is not limited to a specific structure or type. That is, the recording medium includes, for example, a tape system such as a magnetic tape and a cassette tape, a magnetic disk such as a floppy (registered trademark) disk / hard disk, and an optical disk such as a CD-ROM / MO / MD / DVD / CD-R. System, a card system such as an IC card (including a memory card) / optical card, or a semiconductor memory system such as a mask ROM / EPROM / EEPROM / flash ROM.
　また、テレビジョン受像機１０を通信ネットワークと接続可能に構成しても、本発明の目的を達成できる。この場合、上記のプログラムコードを、通信ネットワークを介してテレビジョン受像機１０に供給する。この通信ネットワークはテレビジョン受像機１０にプログラムコードを供給できるものであればよく、特定の種類または形態に限定されない。たとえばインターネット、イントラネット、エキストラネット、ＬＡＮ、ＩＳＤＮ、ＶＡＮ、ＣＡＴＶ通信網、仮想専用網（Ｖｉｒｔｕａｌ　Ｐｒｉｖａｔｅ　Ｎｅｔｗｏｒｋ）、電話回線網、移動体通信網、衛星通信網等であればよい。 Further, even if the television receiver 10 is configured to be connectable to a communication network, the object of the present invention can be achieved. In this case, the program code is supplied to the television receiver 10 via the communication network. The communication network is not limited to a specific type or form as long as it can supply program codes to the television receiver 10. For example, the Internet, intranet, extranet, LAN, ISDN, VAN, CATV communication network, virtual private network, telephone line network, mobile communication network, satellite communication network, etc. may be used.
　この通信ネットワークを構成する伝送媒体も、プログラムコードを伝送可能な任意の媒体であればよく、特定の構成または種類のものに限定されない。たとえばＩＥＥＥ１３９４、ＵＳＢ（Ｕｎｉｖｅｒｓａｌ　Ｓｅｒｉａｌ　Ｂｕｓ）、電力線搬送、ケーブルＴＶ回線、電話線、ＡＤＳＬ（Ａｓｙｍｍｅｔｒｉｃ　Ｄｉｇｉｔａｌ　Ｓｕｂｓｃｒｉｂｅｒ　Ｌｉｎｅ）回線等の有線でも、ＩｒＤＡやリモコンのような赤外線、Ｂｌｕｅｔｏｏｔｈ（登録商標）、８０２．１１無線、ＨＤＲ、携帯電話網、衛星回線、地上波デジタル網等の無線でも利用可能である。なお本発明は、上記プログラムコードが電子的な伝送で具現化された、搬送波に埋め込まれたコンピュータデータ信号の形態でも実現され得る。 The transmission medium constituting the communication network may be any medium that can transmit the program code, and is not limited to a specific configuration or type. For example, even wired such as IEEE 1394, USB (Universal Serial Bus), power line carrier, cable TV line, telephone line, ADSL (Asymmetric Digital Subscriber Line) line, infrared such as IrDA or remote control, Bluetooth (registered trademark), 802.11 It can also be used by radio such as radio, HDR, mobile phone network, satellite line, terrestrial digital network. The present invention can also be realized in the form of a computer data signal embedded in a carrier wave in which the program code is embodied by electronic transmission.
　（本発明の総括）
　以上のように、本発明に係るコンテンツ再生装置は、少なくとも音声を含むコンテンツを再生するコンテンツ再生装置であって、
　互いに異なる複数の周波数特性のうちいずれかを有する音を個別に説明する複数の選択項目を、ディスプレイに表示する表示手段と、
　前記複数の選択項目のうち、いずれか一つをユーザに選択させる選択手段と、
　選択された前記選択項目によって表現される前記音を、スピーカから出力させる音出力手段と、
　択された前記選択項目によって説明される前記音が有する前記周波数特性を表すパラメータを、前記コンテンツに含まれる前記音声用のパラメータとして設定する設定手段と、
　前記コンテンツの再生時、当該コンテンツに含まれる音声を前記設定されたパラメータを用いて処理し、処理後の音声を前記スピーカから出力させる音声出力手段とを備えていることを特徴としている。 (Summary of the present invention)
As described above, the content reproduction apparatus according to the present invention is a content reproduction apparatus that reproduces content including at least sound,
Display means for displaying, on a display, a plurality of selection items for individually explaining a sound having any one of a plurality of frequency characteristics different from each other;
Selection means for allowing the user to select any one of the plurality of selection items;
Sound output means for outputting the sound represented by the selected selection item from a speaker;
Setting means for setting a parameter representing the frequency characteristic of the sound described by the selected selection item as a parameter for the audio included in the content;
It is characterized by comprising audio output means for processing the audio included in the content using the set parameters when reproducing the content and outputting the processed audio from the speaker.
　さらに、本発明に係るコンテンツ再生装置では、
　規定の聴力測定用音声を一定のボリュームで前記スピーカから出力させる聴力測定用音声出力手段と、
　前記聴力測定用音声が聞こえたか否かをユーザに入力させる入力手段とをさらに備え、
　前記表示手段は、前記ユーザによる入力内容に応じた前記複数の選択項目を、前記ディスプレイに表示することが好ましい。 Furthermore, in the content reproduction apparatus according to the present invention,
Audio output means for audio measurement for outputting the audio for audio measurement of a predetermined volume from the speaker at a constant volume;
Input means for allowing a user to input whether or not the hearing measurement sound has been heard;
It is preferable that the display means displays the plurality of selection items corresponding to the input content by the user on the display.
　上記の構成によれば、ユーザの聴力に応じた最適なパラメータを、コンテンツの音声用のパラメータとして設定できる。 According to the above configuration, an optimum parameter corresponding to the user's hearing ability can be set as a parameter for content audio.
　さらに、本発明に係るコンテンツ再生装置では、
　前記表示手段は、
　　前記ユーザによって前記聴力測定用音声が聞こえると入力された場合、中域における振幅の平均値が所定の値である前記複数の周波数特性のいずれかを個別に表現する前記複数の選択項目を、前記ディスプレイに表示すると共に、
　　前記ユーザによって前記聴力測定用音声が聞こないと入力された場合、中域における振幅の平均値が前記所定の値よりも大きい前記複数の周波数特性のいずれかを個別に表現する前記複数の選択項目を、前記ディスプレイに表示することが好ましい。 Furthermore, in the content reproduction apparatus according to the present invention,
The display means includes
When the user inputs that the audio for hearing measurement is heard, the plurality of selection items individually expressing any one of the plurality of frequency characteristics whose average value of amplitude in a middle range is a predetermined value, On the display,
The plurality of selection items that individually express any one of the plurality of frequency characteristics in which an average value of an amplitude in a middle range is larger than the predetermined value when the user inputs that the audio for hearing measurement is not heard Is preferably displayed on the display.
　上記の構成によれば、聴力測定用音声が聞こえるユーザに比べて、聞こえないユーザには、より振幅の高い周波数特性を有する音に設定される候補を選択させることができる。したがって、ユーザの聴力に応じた最適なパラメータを、コンテンツの音声用のパラメータとして設定できる。 According to the above configuration, a user who cannot hear a hearing measurement sound can be made to select a candidate set to a sound having a frequency characteristic with higher amplitude than a user who can hear the sound for hearing measurement. Therefore, an optimum parameter corresponding to the user's hearing ability can be set as a parameter for the sound of the content.
　さらに、本発明に係るコンテンツ再生装置では、
　前記表示手段は、特定の帯域においては互いに異なると共に、当該特定の帯域以外の帯域では互いに等しい前記複数の周波数特性のうちいずれかを有する音を個別に表現する前記複数の選択項目を、前記ディスプレイに表示し、
　前記設定手段は、選択された前記選択項目によって説明される音が有する前記前記周波数特性を表すパラメータを、前記コンテンツに含まれる音声における前記特定の帯域用のパラメータとして設定することが好ましい。 Furthermore, in the content reproduction apparatus according to the present invention,
The display means displays the plurality of selection items individually representing sounds having any one of the plurality of frequency characteristics different from each other in a specific band and equal to each other in a band other than the specific band. Displayed on the
The setting means preferably sets a parameter representing the frequency characteristic of the sound described by the selected selection item as a parameter for the specific band in the sound included in the content.
　上記の構成によれば、コンテンツに含まれる音声の帯域ごとに、ユーザの嗜好を反映させたパラメータを設定できる。したがって、ユーザの嗜好をより細かく反映させた音声を出力できる。 According to the above configuration, it is possible to set a parameter reflecting the user's preference for each audio band included in the content. Therefore, it is possible to output a voice that more closely reflects the user's preference.
　さらに、本発明に係るコンテンツ再生装置では、
　前記特定の帯域は、中域であり、
　前記音出力手段は、前記音として話し声を前記スピーカから出力させることが好ましい。 Furthermore, in the content reproduction apparatus according to the present invention,
The specific band is a middle band;
Preferably, the sound output means outputs a speaking voice as the sound from the speaker.
　上記の構成によれば、ユーザは、設定候補のパラメータを反映させた話し声を聞きながら、中域（中音）の音質設定が可能となる。したがってユーザは、コンテンツの中音の音質がどのように改善されるのかを、設定前に確実に把握することができる。 According to the above configuration, the user can set the sound quality of the middle range (medium tone) while listening to the spoken voice reflecting the setting candidate parameters. Therefore, the user can surely grasp how the sound quality of the middle sound of the content is improved before setting.
　さらに、本発明に係るコンテンツ再生装置では、
　前記特定の帯域は、低域および高域のうち少なくともいずれかであり、
　前記音出力手段は、前記音として音楽を前記スピーカから出力させることが好ましい。 Furthermore, in the content reproduction apparatus according to the present invention,
The specific band is at least one of a low band and a high band,
The sound output means preferably outputs music from the speaker as the sound.
　上記の構成によれば、ユーザは、設定候補のパラメータを反映させた音楽を聞きながら、低域および高域（低音および高音）の音質設定が可能となる。したがってユーザは、コンテンツに含まれる低音および高音の音質がどのように改善されるのかを、設定前に確実に把握することができる。 According to the above configuration, the user can set the sound quality of the low range and the high range (bass and treble) while listening to the music reflecting the setting candidate parameters. Therefore, the user can surely grasp how the sound quality of the bass and treble included in the content is improved before setting.
　さらに、本発明に係るコンテンツ再生装置では、
　前記特定の帯域は、低域および高域の両方であることが好ましい。 Furthermore, in the content reproduction apparatus according to the present invention,
The specific band is preferably both a low band and a high band.
　さらに、本発明に係るコンテンツ再生装置では、
　前記コンテンツのジャンルを特定するジャンル特定手段と、
　前記設定手段によって設定されたパラメータを、前記ジャンル特定手段によって特定されたジャンルに応じたパラメータに基づき補正する補正手段とをさらに備えていることが好ましい。 Furthermore, in the content reproduction apparatus according to the present invention,
Genre specifying means for specifying the genre of the content;
It is preferable that the apparatus further includes a correcting unit that corrects the parameter set by the setting unit based on a parameter corresponding to the genre specified by the genre specifying unit.
　上記の構成によれば、ユーザの嗜好およびコンテンツのジャンルの両方を反映させた音声を、コンテンツの再生時に出力することができる。したがって、ジャンルごとにユーザにとって最適な音声を出力できる。 According to the above configuration, it is possible to output sound reflecting both the user's preference and the content genre when the content is played back. Therefore, it is possible to output the optimum voice for the user for each genre.
　なお、上記コンテンツ再生装置は、コンピュータによって実現してもよい。この場合、コンピュータを上記各手段として動作させることにより上記コンテンツ再生装置をコンピュータにおいて実現するプログラム、およびそのプログラムを記録したコンピュータ読み取り可能な記録媒体も、本発明の範疇に入る。 Note that the content reproduction apparatus may be realized by a computer. In this case, a program for realizing the content reproduction apparatus in the computer by causing the computer to operate as each of the above means and a computer-readable recording medium recording the program also fall within the scope of the present invention.
　発明の詳細な説明の項においてなされた具体的な実施形態または実施例は、あくまでも、本発明の技術内容を明らかにするものであって、そのような具体例にのみ限定して狭義に解釈されるべきものではなく、本発明の精神と次に記載する特許請求事項の範囲内で、いろいろと変更して実施することができるものである。 The specific embodiments or examples made in the detailed description section of the invention are merely to clarify the technical contents of the present invention, and are limited to such specific examples and are interpreted in a narrow sense. It should be understood that various modifications may be made within the spirit of the invention and the scope of the following claims.
　本発明は、テレビジョン受像機等のコンテンツ再生装置として最適に利用できる。 The present invention can be optimally used as a content reproduction apparatus such as a television receiver.
　１０　テレビジョン受像機（コンテンツ再生装置）
　２１　表示制御部（表示手段、）
　２２　液晶表示装置（表示パネル）
　２７　音声出力変換部（音声出力手段、聴力測定用音声出力手段）
　２８　スピーカ
　４１　設定用メモリ
　４２　音声パラメータ設定部（設定手段） 10 Television receiver (content playback device)
21 Display control unit (display means)
22 Liquid crystal display device (display panel)
27 Audio output conversion unit (audio output means, audio output means for hearing measurement)
28 Speaker 41 Setting Memory 42 Voice Parameter Setting Unit (Setting Unit)

Claims (11)

  1. 　少なくとも音声を含むコンテンツを再生するコンテンツ再生装置であって、
    　互いに異なる複数の周波数特性のうちいずれかを有する音を個別に説明する複数の選択項目を、ディスプレイに表示する表示手段と、
    　前記複数の選択項目のうち、いずれか一つをユーザに選択させる選択手段と、
    　選択された前記選択項目によって表現される前記音を、スピーカから出力させる音出力手段と、
    　選択された前記選択項目によって説明される前記音が有する前記周波数特性を表すパラメータを、前記コンテンツに含まれる前記音声用のパラメータとして設定する設定手段と、
    　前記コンテンツの再生時、当該コンテンツに含まれる音声を、設定された前記パラメータを用いて処理し、処理後の音声を前記スピーカから出力させる音声出力手段とを備えていることを特徴とするコンテンツ再生装置。     A content playback device for playing back content including at least sound,
    Display means for displaying, on a display, a plurality of selection items for individually explaining a sound having any one of a plurality of frequency characteristics different from each other;
    Selection means for allowing the user to select any one of the plurality of selection items;
    Sound output means for outputting the sound represented by the selected selection item from a speaker;
    Setting means for setting a parameter representing the frequency characteristic of the sound described by the selected selection item as a parameter for the audio included in the content;
    Content reproduction comprising: audio output means for processing audio included in the content when the content is reproduced using the set parameter and outputting the processed audio from the speaker apparatus.
  2. 　規定の聴力測定用音声を一定のボリュームで前記スピーカから出力させる聴力測定用音声出力手段と、
    　前記聴力測定用音声が聞こえたか否かをユーザに入力させる入力手段とをさらに備え、
    　前記表示手段は、前記ユーザによって入力された内容に応じた前記複数の選択項目を、前記ディスプレイに表示することを特徴とする請求項１に記載のコンテンツ再生装置。     Audio output means for audio measurement for outputting the audio for audio measurement of a predetermined volume from the speaker at a constant volume;
    Input means for allowing a user to input whether or not the hearing measurement sound has been heard;
    The content reproduction apparatus according to claim 1, wherein the display unit displays the plurality of selection items corresponding to contents input by the user on the display.
  3. 　前記表示手段は、
    　　前記ユーザによって前記聴力測定用音声が聞こえると入力された場合、中域における振幅の平均値が所定の値である前記複数の周波数特性のいずれかを個別に表現する前記複数の選択項目を、前記ディスプレイに表示すると共に、
    　　前記ユーザによって前記聴力測定用音声が聞こないと入力された場合、中域における振幅の平均値が前記所定の値よりも大きい前記複数の周波数特性のいずれかを個別に表現する前記複数の選択項目を、前記ディスプレイに表示することを特徴とする請求項２に記載のコンテンツ再生装置。     The display means includes
    When the user inputs that the audio for hearing measurement is heard, the plurality of selection items individually expressing any one of the plurality of frequency characteristics whose average value of the amplitude in the middle range is a predetermined value, On the display,
    The plurality of selection items that individually express any one of the plurality of frequency characteristics in which an average value of an amplitude in a middle range is larger than the predetermined value when the user inputs that the audio for hearing measurement is not heard The content reproducing apparatus according to claim 2, wherein the content is displayed on the display.
  4. 　前記表示手段は、特定の帯域においては互いに異なると共に、当該特定の帯域以外の帯域では互いに等しい前記複数の周波数特性のうちいずれかを有する音を個別に表現する前記複数の選択項目を、前記ディスプレイに表示し、
    　前記設定手段は、選択された前記選択項目によって説明される音が有する前記周波数特性を表すパラメータを、前記コンテンツに含まれる音声における前記特定の帯域用のパラメータとして設定することを特徴とする請求項３に記載のコンテンツ再生装置。     The display means displays the plurality of selection items individually representing sounds having any one of the plurality of frequency characteristics different from each other in a specific band and equal to each other in a band other than the specific band. Displayed on the
    The said setting means sets the parameter showing the said frequency characteristic which the sound demonstrated by the selected said selection item has as a parameter for the said specific band in the audio | voice contained in the said content. 4. The content reproduction device according to 3.
  5. 　前記特定の帯域は、中域であり、
    　前記音出力手段は、前記音として話し声を前記スピーカから出力させることを特徴とする請求項４に記載のコンテンツ再生装置。     The specific band is a middle band;
    The content reproduction apparatus according to claim 4, wherein the sound output unit outputs a spoken voice as the sound from the speaker.
  6. 　前記特定の帯域は、低域および高域のうち少なくともいずれかであり、
    　前記音出力手段は、前記音として音楽を前記スピーカから出力させることを特徴とする請求項４に記載のコンテンツ再生装置。     The specific band is at least one of a low band and a high band,
    The content reproduction apparatus according to claim 4, wherein the sound output unit outputs music as the sound from the speaker.
  7. 　前記特定の帯域は、低域および高域の両方であることを特徴とする請求項６に記載のコンテンツ再生装置。 The content reproduction apparatus according to claim 6, wherein the specific band is both a low band and a high band.
  8. 　前記コンテンツのジャンルを特定するジャンル特定手段と、
    　前記設定手段によって設定されたパラメータを、前記ジャンル特定手段によって特定されたジャンルに応じたパラメータに基づき補正する補正手段とをさらに備えていることを特徴とする請求項１～７のいずれか１項に記載のコンテンツ再生装置。     Genre specifying means for specifying the genre of the content;
    8. The apparatus according to claim 1, further comprising a correction unit that corrects the parameter set by the setting unit based on a parameter corresponding to the genre specified by the genre specifying unit. The content reproduction apparatus described in 1.
  9. 　少なくとも音声を含むコンテンツを再生するコンテンツ再生装置が実行する音声パラメータ設定方法であって、
    　互いに異なる複数の周波数特性のうちいずれかを有する音を個別に説明する複数の選択項目を、ディスプレイに表示する表示ステップと、
    　前記複数の選択項目のうち、いずれか一つをユーザに選択させる選択ステップと、
    　選択された前記選択項目によって表現される前記音を、スピーカから出力させる音出力ステップと、
    　選択された前記選択項目によって説明される前記音が有する前記周波数特性を表すパラメータを、前記コンテンツに含まれる前記音声用のパラメータとして設定する設定ステップと、
    　前記コンテンツの再生時、当該コンテンツに含まれる音声を、設定された前記パラメータを用いて処理し、処理後の音声を前記スピーカから出力させる音声出力ステップとを備えていることを特徴とする音声パラメータ設定方法。     An audio parameter setting method executed by a content reproduction apparatus that reproduces content including at least audio,
    A display step of displaying a plurality of selection items individually describing a sound having any one of a plurality of frequency characteristics different from each other on a display;
    A selection step for allowing the user to select any one of the plurality of selection items;
    A sound output step for outputting the sound represented by the selected selection item from a speaker;
    A setting step of setting a parameter representing the frequency characteristic of the sound described by the selected selection item as a parameter for the sound included in the content;
    An audio parameter comprising: an audio output step of processing audio included in the content when the content is reproduced using the set parameter, and outputting the processed audio from the speaker Setting method.
  10. 　請求項１から８のいずれか１項に記載のコンテンツ再生装置を動作させるプログラムであって、コンピュータを上記の各手段として機能させるためのプログラム。 A program for operating the content reproduction apparatus according to any one of claims 1 to 8, wherein the program causes the computer to function as each of the above means.
  11. 　請求項１０に記載のプログラムを記録しているコンピュータ読み取り可能な記録媒体。 A computer-readable recording medium in which the program according to claim 10 is recorded.
PCT/JP2010/066591 2009-09-25 2010-09-24 Content playback device, audio parameter setting method, program, and storage medium WO2011037204A1 (en)

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