CN115499772A - Sound channel transformation method and device - Google Patents
Sound channel transformation method and device Download PDFInfo
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- CN115499772A CN115499772A CN202210943638.3A CN202210943638A CN115499772A CN 115499772 A CN115499772 A CN 115499772A CN 202210943638 A CN202210943638 A CN 202210943638A CN 115499772 A CN115499772 A CN 115499772A
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Abstract
The invention provides a method and a device for converting a sound channel. The method provided by the invention can be used for acquiring and adjusting the sound channel applied by the audio equipment according to the acquired relative position between the user and the audio equipment, so that the sound channel played by the audio equipment can adapt to the environment set by the audio equipment, the sound channel cannot be influenced by the dislocation of the audio equipment or the position movement of the user, the hearing experience of the user is obviously improved, and the time and labor wasted due to calibration are reduced.
Description
Technical Field
The invention belongs to the technical field of sound channel conversion, and particularly relates to a sound channel conversion method and device.
Background
When listening to sound, people can distinguish the direction from which the sound is transmitted, so as to roughly determine the position of the sound source. For example, when there is a sound source in the front right, the sound is first transmitted to the right ear and then to the left ear because the right ear is closer to the sound source, and the sound heard by the right ear is slightly stronger than the sound heard by the left ear. If the sound source emits sound at a high frequency, a part of the sound transmitted to the left ear is reflected back by the head, and thus the sound is not easily heard by the left ear. This slight difference in the sensation of sound by the two ears, transmitted to the brain nerves, enables us to judge that the sound is coming from the front right. This is commonly referred to as the "binaural effect".
A typical recording is monophonic, such as a concert recording, where different instrument sounds from various aspects of the stage are received by a microphone or by several microphones and then mixed, synthesized into an audio current and recorded, and reproduced by a speaker. When listening to such a recording, only the synthesized sound of the instruments in different directions can be heard, but it is not possible to distinguish which instrument sound is coming from which direction, and the person cannot feel the stereoscopic sense of space as when listening to music in a concert hall.
If the spatial positions of different sound sources can be reflected during recording, people can listen to the recording as if listening to sound of the sound sources in all aspects personally and directly. The sound reproduction system reproduces stereoscopic sound, namely stereo sound, in which a left channel and a right channel can respectively play the same or different sound, and generates a stereo sound variation effect from left to right or from right to left.
At present, the left and right channel outputs are fixedly connected with the loudspeaker box, the left channel output is fixedly connected with the left loudspeaker box, and similarly, the right channel output is fixedly connected with the right loudspeaker box. However, when the left loudspeaker box is placed on the right side of the listener or the right loudspeaker box is placed on the left side of the listener in a wrong position, the left and right sound channels heard by the listener can be exchanged, and user experience is affected. In addition, it is inconvenient for the user to adjust the position of the audio device which is dislocated, and it is more difficult for a part of the fixed audio device or the large audio device to be displaced.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a sound channel conversion method, which comprises the following steps:
acquiring the position of the audio equipment;
determining a relative position between a user and the audio device through the position of the user and the position of the audio device;
applying a channel corresponding to the audio device according to the position of the audio device relative to the user.
Preferably, the applying the channel corresponding to the audio device according to the position of the audio device relative to the user comprises:
according to the position of the audio equipment relative to the user, audio is distinguished, the sound channel corresponding to the position of the audio equipment is generated, and the sound channel corresponding to the audio equipment is applied to the audio equipment at the position.
Specifically, the "distinguishing audio, generating the channel corresponding to the audio device location, and applying the channel corresponding to the audio device" includes:
the method includes the steps of distinguishing audio, generating a left channel and a right channel, applying the left channel to the audio device relatively positioned on the left side of the user, and applying the right channel to the audio device relatively positioned on the right side of the user.
Optionally, the method obtains the position of the audio device by radar and applies to two audio devices, and the determining the relative position between the user and the audio device by the position of the user and the position of the audio device includes:
and taking the position of the user as a reference, acquiring included angles between the two audio devices and the preset direction of the radar, and determining the relative position between the user and the two audio devices.
Preferably, the acquiring the position of the audio device includes:
and acquiring the position of the audio equipment through a millimeter wave radar.
Further, the acquiring the position of the audio device includes:
and acquiring the position of the audio equipment once every preset interval time.
Preferably, the method further comprises:
acquiring the opposite direction information of the user;
the "determining the relative position between the user and the audio device by the position of the user and the position of the audio device" further comprises:
and determining the relative position between the user and the audio equipment according to the opposite direction information of the user through the position of the user and the position of the audio equipment.
Further, the acquiring the opposite direction information of the user includes:
capturing and acquiring the opposite direction information of the user through a camera.
Specifically, the sound channel and the audio device are connected through 5.8G radio frequency.
The present invention also provides a sound channel conversion apparatus, comprising:
at least one audio device for playing audio;
the position acquisition module is used for acquiring the position of the audio equipment;
the position determining module is used for determining the relative position between the user and the audio equipment according to the position of the user and the position of the audio equipment acquired by the position acquiring module;
and the sound channel application module is used for applying the sound channel corresponding to the audio equipment according to the position of the audio equipment relative to the user, which is determined by the position determination module.
Further, the apparatus further comprises:
and the sound channel generating module is used for distinguishing audio according to the position of the audio equipment relative to the user and generating the sound channel corresponding to the position of the audio equipment.
The invention has at least the following beneficial effects:
by applying the method provided by the invention, the sound channel played by the audio equipment is not influenced by the malposition of the audio equipment or the movement of the position of the user, so that the user does not have the trouble of moving the audio equipment when the audio equipment is malpositioned or the position of the user is moved, and the auditory experience of the user is improved;
furthermore, the method provided by the invention can also distinguish the audio according to the position of the audio equipment relative to the user, generate the sound channel corresponding to each audio equipment, use the millimeter wave radar to detect the position, and additionally add a mechanism for capturing the direction opposite to the user and acquiring the position information at regular time, thereby realizing the more accurate and real-time adjustment of the sound channel played by the audio equipment.
Therefore, the method and the device can acquire the positions of the user and the audio equipment, and adjust the sound channel applied by the audio equipment according to the relative position between the user and the audio equipment, so that the sound channel played by the audio equipment can adapt to the environment set by the audio equipment, the sound channel cannot be influenced by malposition of the audio equipment or position movement of the user, the hearing experience of the user is obviously improved, and the time and labor wasted due to calibration are reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic overall flowchart of a channel transformation method provided in embodiment 1;
FIG. 2 is a schematic view of a situation where left and right speakers are placed in a staggered manner;
fig. 3 is a schematic view of a scene of a sound channel conversion method provided in the left and right speakers in embodiment 1;
FIG. 4 is a schematic diagram of a scenario when radar and two audio devices are used;
fig. 5 is a schematic block diagram of an overall structure of a sound channel transforming apparatus according to embodiment 2.
Reference numerals are as follows:
200-an audio device; 210-a location acquisition module; 220-a location determination module; 230-channel application module; 240-channel generation module; 250-time module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
In this embodiment, a method for channel transformation is provided, please refer to fig. 1, the method includes:
s100: the position of the audio device is acquired, and the process proceeds to step S110.
S110: the relative position between the user and the audio device is determined by the position of the user and the position of the audio device, and the process proceeds to step S120.
S120: according to the position of the audio device relative to the user, the channel corresponding to the audio device is applied to the audio device, and the process proceeds to step S130.
Specifically, the audio channel is connected with the audio device through 5.8G radio frequency.
S130: and enabling the audio equipment to play the audio of the corresponding sound channel.
It should be noted that the position of the user can be obtained through obtaining or obtained through calculation, for example, assuming that the user is located between two audio devices and the user faces the audio device and the obtaining device for obtaining the position of the audio device, the position of the audio device relative to the user can be determined through the position of the user.
Preferably, the applying the channel corresponding to the audio device according to the position of the audio device relative to the user includes:
according to the position of the audio equipment relative to the user, audio is distinguished, a sound channel corresponding to the position of the audio equipment is generated, and the sound channel corresponding to the audio equipment is applied to the audio equipment.
In a specific embodiment, a plurality of the audio devices are provided, the audio device is divided into a left channel and a right channel, and the left channel and the right channel, which are divided by the audio device, are respectively applied to the left side or the right side of the user according to the relative positions of the audio devices, and specifically, the method further includes:
the audio is distinguished, a left channel and a right channel are generated, the left channel is applied to the audio equipment with the relative position on the left side of the user, and the right channel is applied to the audio equipment with the relative position on the right side of the user.
It should be noted that the audio source itself includes information of the left and right channels, and only the device that configures the corresponding channel to the corresponding position relationship is needed.
Specifically, in this embodiment, the acquiring the location of the user and the location of the audio device includes:
and acquiring the position of the user and the position of the audio equipment through the millimeter wave radar.
It should be noted that millimeter wave (millimeter wave) is an electromagnetic wave with a wavelength of 1 to 10 mm, and is located in a wavelength range where microwave and far-infrared wave overlap, so that the millimeter wave has characteristics of two spectra. In recent years, with the increase of the demand for millimeter wave systems, millimeter wave technology has made a major breakthrough in the development of transmitters, receivers, antennas, millimeter wave devices, and the like, and millimeter wave radars are entering a new stage of various applications.
The millimeter wave radar is a radar with a working frequency band in a millimeter wave frequency band, the ranging principle of the millimeter wave radar is the same as that of a common radar, the millimeter wave radar sends out millimeter waves and then receives echoes, and position data of a target is measured according to time difference between receiving and sending.
The millimeter wave radar has the advantages of extremely wide frequency band, suitability for various broadband signal processing, good directivity, extremely high spatial resolution, higher tracking precision and speed measurement precision, sensitivity to the details of the target shape, and capability of improving the target identification capability and imaging quality of multi-target resolution. In addition, the millimeter wave radar also has the ability to penetrate smoke, dust and fog, and can work around the clock.
Preferably, "acquiring the location of the user and the location of the audio device" further comprises:
and acquiring the position of the user and the position of the audio equipment once every preset interval time.
By presetting the interval time, the position of the user and the position of the audio equipment can be acquired according to the specific frequency, periodic cycle detection is realized, and when the position of the user moves, the sound channel applied by the audio equipment can be adjusted in real time according to the position of the user after the user moves.
In this embodiment, the predetermined interval time is 30s to 300s.
Further, in the case where the position of the audio device does not move, only the position of the user may be acquired every time the interval time elapses; likewise, in the case where the user's location does not move, only the location of the audio device may be acquired.
In a concrete scene, audio equipment includes two audio amplifier of image equipment, the user is just to the picture that image equipment shows, two audio amplifiers set up respectively in user's left side and right side, if use traditional fixed left sound channel to connect left audio amplifier, the connected mode of fixed right sound channel connection right audio amplifier, if the dislocation condition as shown in fig. 2 appears in left and right audio amplifier, will lead to left audio amplifier broadcast right sound channel audio frequency, the audio amplifier broadcast left sound channel audio frequency's on right side the condition, influence user experience, also need adjust through the displacement of user to two audio amplifiers in addition, it is comparatively inconvenient.
Referring to fig. 3, with the method of this embodiment, a user does not need to specially place a sound box at a position corresponding to the left sound channel, but can connect the left sound box with the left sound channel, and connect the right sound box with the right sound channel. The present scenario illustrates a case where the audio device is two sound boxes of the video device, but the scenario cannot be understood that the audio device is fixed as a sound box of the video device, and cannot be understood as a limitation on the number of audio devices, and the number of audio devices may be adjusted according to a user's requirement, for example, equal to or greater than two.
It should be noted that the channels distinguished by the audio are not limited to the left channel and the right channel, and in the case that the number of the audio devices is greater than two, the number of the channels distinguished by the audio is also not limited to two, and the corresponding channels corresponding to the number of the audio devices can be distinguished according to the actual application scenarios, for example, according to the position of the audio device relative to the user and the number of the audio devices, and can be respectively applied to the corresponding audio devices.
Fig. 4 shows a case where two audio devices are used, and the positions of the audio devices are obtained by radar, and the audio devices in the figure are exemplified by sound boxes. Taking the case shown in fig. 4 as an example, preferably, referring to fig. 5, the "determining the relative position between the user and the audio device by the position of the user and the position of the audio device" includes:
and taking the position of the user as a reference, acquiring included angles between the two audio devices and the preset direction of the radar, and determining the relative position between the user and the two audio devices.
In this embodiment, on the premise that the user is directly facing the radar, the direction of the user relative to the radar is taken as a reference 90 °, and the direction of the radar relative to the right side of the user is taken as a preset direction, that is, the direction of the starting point shown in the figure.
Specifically, an included angle between the preset direction and the first audio equipment is a first included angle, and an included angle between the preset direction and the second audio equipment is a second included angle;
when the first included angle is smaller than the second included angle, the right sound channel is applied to the first audio equipment, and the left sound channel is applied to the second audio equipment;
and when the first included angle is larger than the second included angle, the left sound channel is applied to the first audio equipment, and the right sound channel is applied to the second audio equipment.
Preferably, the acquiring the location of the user and the location of the audio device further comprises:
and acquiring the opposite direction information of the user.
Further, the "determining the relative position between the user and the audio device by the position of the user and the position of the audio device" further comprises:
and determining the relative position between the user and the audio equipment according to the opposite direction information of the user through the position of the user and the position of the audio equipment.
In particular, the relative position between the user and the audio device is determined, i.e. the audio device is determined to be on the left side of the user or on the right side of the user relative to the user.
In a specific embodiment, the acquiring the user's facing direction information includes:
capturing and acquiring the opposite direction information of the user through the camera.
Example 2
Based on the method for channel conversion proposed by embodiment 1, the present embodiment proposes a channel conversion apparatus, please refer to fig. 5, the channel conversion apparatus includes:
at least one audio device 200 for playing audio;
a location obtaining module 210, configured to obtain a location of a user and a location of an audio device;
a position determining module 220 for determining a relative position between the user and the audio device by the position of the user and the position of the audio device acquired by the position acquiring module 210;
a channel application module 230, configured to apply the channel corresponding to the audio device according to the position of the audio device relative to the user, which is determined by the position determination module 220.
Further, the channel converting apparatus further includes:
and a channel generating module 240, configured to differentiate audio according to the position of the audio device relative to the user determined by the position determining module 220, and generate a channel corresponding to the position of the audio device.
In one embodiment, the channel generation module 240 divides the audio into a left channel and a right channel, and applies the left channel and the right channel respectively according to the relative position of the audio device on the left side or the right side of the user. Specifically, the channel generating module 240 is configured to distinguish audio, generate a left channel and a right channel, apply the left channel to an audio device located on the left side of the user, and apply the right channel to an audio device located on the right side of the user.
In this embodiment, the channel generating module 240 is disposed between the position determining module 220 and the channel applying module 230.
Further, the channel converting apparatus further includes:
the time module 250 is configured to enable the location obtaining module 210 to obtain the location of the user and the location of the audio device once every preset time interval elapses.
After the interval time is preset, the position of the user and the position of the audio equipment can be obtained according to the specific frequency, periodic cycle detection is achieved, and when the position of the user moves, the sound channel applied to the audio equipment can be adjusted in real time according to the position of the user after the user moves.
Further, the position obtaining module 210 is further configured to obtain the facing direction information of the user, and the position determining module 220 is further configured to determine the relative position between the user and the audio device according to the facing direction information of the user obtained by the position obtaining module 210 through the position of the user and the position of the audio device obtained by the position obtaining module 210.
In particular, the relative position between the user and the audio device is determined, i.e. the audio device is determined to be on the left side of the user or on the right side of the user relative to the user.
In summary, the method and apparatus for channel conversion provided by the present invention can obtain the positions of the user and the audio device, and adjust the channel applied by the audio device according to the relative position between the user and the audio device, so that the channel played by the audio device can adapt to the environment set by the audio device, and is not affected by the misplacement of the audio device or the movement of the user position, thereby significantly improving the hearing experience of the user, and reducing the time and labor wasted by calibration.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
Claims (10)
1. A method of channel conversion, the method comprising:
acquiring the position of the audio equipment;
determining a relative position between a user and the audio device from the position of the user and the position of the audio device;
applying a channel corresponding to the audio device according to the position of the audio device relative to the user.
2. The method of claim 1, wherein said applying the channel corresponding to the audio device according to the position of the audio device relative to the user comprises:
according to the position of the audio equipment relative to the user, audio is distinguished, the sound channel corresponding to the position of the audio equipment is generated, and the sound channel corresponding to the audio equipment is applied to the audio equipment.
3. The method of claim 2, wherein said distinguishing audio, generating the channel corresponding to the audio device location, and applying the channel corresponding to the audio device comprises:
the audio is distinguished, a left channel and a right channel are generated, the left channel is applied to the audio equipment with the relative position on the left side of the user, and the right channel is applied to the audio equipment with the relative position on the right side of the user.
4. A channel conversion method according to any one of claims 1-3, wherein the method obtains the positions of the audio devices by radar and applies the positions to the two audio devices, and the determining the relative position between the user and the audio device by the position of the user and the position of the audio device comprises:
and taking the position of the user as a reference, and acquiring an included angle between the two audio devices and the preset direction of the radar so as to determine the relative position between the user and the two audio devices.
5. The method of claim 1, wherein said obtaining the location of the audio device comprises:
and acquiring the position of the audio equipment through a millimeter wave radar.
6. The method of claim 1 or 5, wherein the obtaining the position of the audio device comprises:
and acquiring the position of the audio equipment once every preset interval time.
7. A method of channel conversion as claimed in claim 1, the method further comprising:
acquiring the opposite direction information of the user;
the "determining the relative position between the user and the audio device by the position of the user and the position of the audio device" further comprises:
and determining the relative position between the user and the audio equipment according to the opposite direction information of the user through the position of the user and the position of the audio equipment.
8. The method of claim 7, wherein said obtaining the opposite direction information of the user comprises:
capturing and acquiring the opposite direction information of the user through a camera.
9. A method as claimed in claim 1, wherein the audio channel is connected to the audio device via a 5.8G radio frequency.
10. A channel converting apparatus, characterized in that the apparatus comprises:
at least one audio device for playing audio;
the position acquisition module is used for acquiring the position of the audio equipment;
the position determining module is used for determining the relative position between the user and the audio equipment according to the position of the user and the position of the audio equipment acquired by the position acquiring module;
a channel application module, configured to apply a channel corresponding to the audio device according to the position of the audio device relative to the user determined by the position determination module;
and the sound channel generating module is used for distinguishing the audio according to the position of the audio equipment relative to the user, which is determined by the position determining module, and generating the sound channel corresponding to the position of the audio equipment.
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| CN202210943638.3A CN115499772A (en) | 2022-08-08 | 2022-08-08 | Sound channel transformation method and device |
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| CN202210943638.3A CN115499772A (en) | 2022-08-08 | 2022-08-08 | Sound channel transformation method and device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116634349A (en) * | 2023-07-21 | 2023-08-22 | 深圳隆苹科技有限公司 | Audio output system capable of automatically distributing sound channels and use method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116634349A (en) * | 2023-07-21 | 2023-08-22 | 深圳隆苹科技有限公司 | Audio output system capable of automatically distributing sound channels and use method |
| CN116634349B (en) * | 2023-07-21 | 2023-11-10 | 深圳隆苹科技有限公司 | Audio output system capable of automatically distributing sound channels and use method |
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