CN113810838A - Audio control method and audio playing device - Google Patents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
- H04S7/30—Control circuits for electronic adaptation of the sound field
- H04S7/301—Automatic calibration of stereophonic sound system, e.g. with test microphone
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
- H04M1/72457—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to geographic location
Abstract
The audio control method of the embodiment of the application is applied to an audio playing device which comprises a plurality of loudspeakers, and comprises the steps of determining whether an audio signal contains position information or not, wherein the position information is used for being associated with at least one of the loudspeakers; and if so, playing the audio signal through the loudspeaker associated with the position information. The audio control method and the audio playing device can enable the sound field of the audio playing device to be matched with the position information, the position sense and the surrounding sense of the sound are strong when the sound is played, the use requirements of users can be met, and the audio playing device can adapt to scenes with high requirements on the position sense of audio playing.
Description
Technical Field
The present application relates to the field of audio control technologies, and in particular, to an audio control method and an audio playback device.
Background
With the development of the times, more and more functions are integrated by electronic devices. Audio playing is one of the main functions of electronic devices, however, all current electronic devices can only play stereo sound, and the applicable scenes are limited.
Disclosure of Invention
The embodiment of the application provides an audio control method and an audio playing device.
The audio control method of the embodiment of the application is applied to an audio playing device which comprises a plurality of loudspeakers, and comprises the steps of determining whether an audio signal contains position information or not, wherein the position information is used for being associated with at least one of the loudspeakers; and if so, playing the audio signal through the loudspeaker associated with the position information.
The audio control method of another embodiment of the present application is applied to an audio playing device comprising a plurality of speakers, and comprises determining position information in an audio signal, the position information being used for associating with at least one of the plurality of speakers; playing the audio signal through the speaker associated with the location information.
The audio playing device of the embodiment of the application comprises a plurality of loudspeakers and a processor, wherein the processor is used for determining whether an audio signal contains position information, and the position information is used for being associated with at least one of the loudspeakers; and when the audio signal has the position information, playing the audio signal through the loudspeaker associated with the position information.
An audio playback device of another embodiment of the present application includes a plurality of speakers and a processor for determining location information in an audio signal, the location information for association with at least one of the plurality of speakers; and playing the audio signal through the speaker associated with the location information.
According to the audio control method and the audio playing device, the audio signal is played by controlling the loudspeaker associated with the position information, so that the sound field of the audio playing device can be matched with the position information, the position sense and the surrounding sense of the sound are stronger when the sound is played, the use requirements of users can be met, and the audio playing device can adapt to scenes with higher requirements on the position sense of audio playing.
Additional aspects and advantages of embodiments of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of embodiments of the present application.
Drawings
The above and/or additional aspects and advantages of embodiments of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic front view of an audio playback device according to some embodiments of the present application.
Fig. 2 is a schematic rear view of an audio playback device according to some embodiments of the present application.
Fig. 3 is a flow chart of an audio control method according to some embodiments of the present application.
FIG. 4 is a block diagram of an audio control device according to some embodiments of the present application.
Fig. 5 to 7 are schematic views of scenes of an audio control method according to some embodiments of the present application.
Fig. 8 is a flow chart of an audio control method according to some embodiments of the present application.
FIG. 9 is a schematic diagram of a connection between a processor and a computer-readable storage medium according to some embodiments of the present application.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. The same or similar reference numbers in the drawings identify the same or similar elements or elements having the same or similar functionality throughout.
In addition, the embodiments of the present invention described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the embodiments of the present invention, and are not to be construed as limiting the present invention.
At present, when more and more applications (such as shooting games and the like) need audio playing, a user can accurately distinguish the direction of sound, but the current electronic equipment generally only has a top and a bottom provided with loudspeakers, only can perform stereo output of left and right sound channels, and the surround feeling and the position feeling of the sound are weak, so that the use requirements of the user cannot be met.
Referring to fig. 1, an audio playback device 100 according to an embodiment of the present disclosure includes a housing 11, a plurality of speakers 12, and a processor 13.
The audio playback device 100 may be a cell phone, a tablet computer, a display device, a notebook computer, a smart watch, a teller machine, a gate, a head-up display device, a game console, etc. As shown in fig. 2, in the embodiment of the present application, the audio playing device 100 is a mobile phone as an example for explanation, and it is understood that the specific form of the audio playing device 100 is not limited to the mobile phone. The housing 11 may also be used to mount functional modules of the audio playback device 100, such as a display device, an imaging device, a power supply device, and a communication device, so that the housing 11 provides protection for the functional modules, such as dust prevention, drop prevention, and water prevention.
The housing 11 may include a plurality of sub-housings (not shown), and the plurality of speakers 12 are respectively disposed in the plurality of sub-housings, and the sub-housings isolate the speakers 12 from other functional components in the audio playback device 100, so as to prevent audio vibration of the speakers 12 from affecting the other functional components.
The housing 11 includes a top wall 111, a bottom wall 112, a first side wall 113, a second side wall 114, a front face 115, and a back face 116. The top wall 111 and the bottom wall 112 are opposite, the front surface 115 and the back surface 116 are opposite, the first side wall 113 and the second side wall 114 connect the top wall 111 and the bottom wall 112, and the top wall 111, the bottom wall 112, the first side wall 113 and the second side wall 114 connect the front surface 115 and the back surface 116. The top wall 111, the bottom wall 112, the first side wall 113, the second side wall 114, the front surface 115 and the back surface 116 enclose an accommodating space 117, and the plurality of speakers 12 and the processor 13 are disposed in the accommodating space 117.
The plurality of speakers 12 are disposed around the casing 11 such that the sound field of the audio playback apparatus 100 covers the surrounding space of the audio playback apparatus 100. For example, as shown in fig. 1, the number of the speakers 12 is four, and the four speakers are respectively disposed on the top wall 111, the bottom wall 112, the first side wall 113, and the second side wall 114 of the audio playback apparatus 100. In other embodiments, the number of the speakers 12 may be eight, and each two speakers 12 are set on the top wall 111, the bottom wall 112, the first side wall 113, and the second side wall 114 of the audio playing device 100, so as to improve the audio playing effect.
The opposing two speakers 12 are of a symmetrical design, for example, the two speakers 12 located on the top wall 111 and the bottom wall 112 are of a symmetrical design (i.e., the line connecting the centers of the two speakers 12 located on the top wall 111 and the bottom wall 112 is parallel to the first side wall 113 or the second side wall 114), the two speakers 12 located on the two side walls are of a symmetrical design (i.e., the line connecting the centers of the two speakers 12 located on the first side wall 113 and the second side wall 114 is parallel to the top wall 111 or the bottom wall 112), and the speakers 12 of the plurality of speakers 12 may be the same speaker 12, i.e., the audio output parameters of the plurality of speakers 12 are the same. The plurality of speakers 12 may also be designed symmetrically, for example, four speakers 12 are respectively located at the middle position of the top wall 111, the middle position of the bottom wall 112, and the middle position of the two side walls, that is, after the centers of the four speakers 12 are connected in sequence, a diamond shape may be formed, and the four speakers 12 are all the same speakers 12, so as to ensure the balance when the plurality of speakers 12 output audio simultaneously.
Compared to the prior art, in which the speakers 12 are designed asymmetrically, such as one being a receiver and one being a bottom speaker 12, the sound field balance of the asymmetric dual speakers 12 is poor, the symmetric design of the speakers 12 makes the sound fields received by the speakers 12 substantially balanced when the user holds the audio playing apparatus 100. Of course, the speakers 12 may also be designed asymmetrically, for example, one of the speakers 12 may be used as an earpiece (generally with poor performance), and when the speakers 12 play audio together, the performance of the speaker 12 that is not used as an earpiece may be reduced, so that the audio output performance of the speakers 12 is substantially consistent, thereby ensuring the balance of the sound field.
Referring to fig. 2, in some embodiments, the audio playback device 100 includes, in addition to the plurality of speakers 12 disposed around the casing 11, speakers 12 disposed on the back 116, and the back 116 is opened with corresponding sound outlet holes 118, so that the sound field of the audio playback device 100 can cover a corresponding side of the back 116. In other embodiments, the audio playback device 100 further includes a screen sounding assembly (not shown) that enables sound to be radiated from the front surface 115, such that the sound field of the audio playback device 100 covers a side of the front surface 115.
When the speaker 12 is disposed on the back 116, compared to the speaker 12 disposed on the edge of the housing 11 (such as the top wall 111, the bottom wall 112, the first side wall 113, and the second side wall 114), the speaker 12 is less affected by the width of the edge of the housing 11 that is available for installation, resulting in a volume that cannot be too large, the space inside the housing 11 is larger, and the volume of the sound cavity of the speaker 12 disposed on the back 116 can be larger than the volume of the sound cavity of the speaker 12 disposed on the edge of the housing 11, so as to implement a large sound cavity design and improve the sound effect of the speaker 12 disposed on the back 116. Wherein the sound cavity includes a front cavity and a rear cavity, in order to enhance the reflection effect of sound, the volume of the front cavity of the speaker 12 disposed on the back 116 may be made larger than the volume of the front cavity of the speaker 12 disposed on the edge of the housing 11, and in order to enhance the sound enhancement effect of the speaker 12 disposed on the back 116, the volume of the rear cavity of the speaker 12 disposed on the back 116 may be made larger than the volume of the rear cavity of the speaker 12 disposed on the edge of the housing 11.
Referring to fig. 1, fig. 3 and fig. 4, an audio control method according to an embodiment of the present application is applied to the audio playback device 100 according to any of the above embodiments, and the audio control method includes:
011: determining whether the audio signal contains position information for association with at least one of the plurality of speakers 12;
012: if so, the audio signal is played through the speaker 12 associated with the position information.
The audio control device 10 according to the embodiment of the present application is applied to the audio playing apparatus 100, and the audio control device 10 includes a determination module 01 and a first control module 02. The determining module 01 is configured to determine whether the audio signal contains position information, the position information being used to be associated with at least one of the plurality of speakers 12; the first control module 02 is used to play audio signals through the loudspeaker 12 associated with the position information. That is, step 011 may be performed by the determination module 01 and step 012 may be performed by the first control module 02.
The processor 13 of the audio playback device 100 of the embodiment of the present application is configured to determine whether the audio signal contains position information, where the position information is used to be associated with at least one of the plurality of speakers 12; and playing the audio signal through the speaker 12 associated with the position information when the audio signal has the position information. That is, step 011 can be performed by processor 13 and step 012 can be performed by processor 13 in cooperation with multiple speakers 12.
Specifically, when the audio playing apparatus 100 plays audio, the processor 13 may first identify the audio signal to determine whether the audio signal includes position information, and when the audio signal includes the position information, indicate a position where the audio signal requires to output sound, and present a position sense of the sound. At this time, the processor 13 may first process the audio signal to generate a plurality of mono audio signals, for example, the processor 13 upmixes the audio signal to generate a plurality of mono audio signals, each corresponding to one position information. The number of channels may be determined according to the kind of position information included in the audio signal, or the number of channels may be a preset number of channels. Of course, the processor 13 may not process the audio signal but directly control the one or more speakers 12 associated with the position information to output the audio signal.
In other embodiments, the audio signals in the audio playing apparatus 100 always carry the position information, and the processor 13 need not to identify whether the audio signals contain the position information, but only needs to obtain the position information in each audio signal and control the associated speaker 12 to play according to the position information.
The processor 13 may control one or more loudspeakers 12 associated with the position information to play the audio signal, and when playing, the processor 13 controls the audio signal played by each associated loudspeaker 12 with the predetermined playing parameters according to the position information of each mono audio signal in the audio signal.
Taking the audio playback device 100 shown in fig. 1 as an example, the speakers 12 located at the left and right sides of the audio playback device 100 are the first speaker 121 and the second speaker 122, respectively, and the speakers 12 located at the upper and lower sides of the audio playback device 100 are the third speaker 123 and the fourth speaker 124, respectively. Wherein the first speaker 121 is disposed on the first sidewall 113, the second speaker 122 is disposed on the second sidewall 114, the third speaker 123 is disposed on the top wall 111, and the fourth speaker 124 is disposed on the bottom wall 112.
The position information includes a plurality of preset directions, each preset direction and the corresponding playing parameter (such as output intensity) of the speaker 12 can set a preset mapping relation table, and after the preset direction of the monaural audio signal is determined, the output intensity of each speaker 12 corresponding to the preset direction can be searched through the mapping relation table, so that the output intensity of each speaker 12 is controlled, the sound field of the audio playing device 100 is matched with the preset direction, that is, the monaural audio signal is output towards the preset direction. Wherein an output intensity P of a speaker 12 indicates that the speaker 12 is associated with a corresponding predetermined orientation.
The specific mapping table is as follows 1:
where P in table 1 is a predetermined output intensity, which can be determined according to the volume set by the user.
For example, when the position information indicates that the preset orientation is "left", the processor 13 controls the first speaker 121 to output the monaural audio signal at a predetermined output intensity, and controls the second to fourth speakers 122 to 124 to output the monaural audio signal at 0, i.e., controls the second to fourth speakers 122 to 124 not to output the monaural audio signal. For another example, when the position information indicates that the preset orientation is "right", the processor 13 controls the second speaker 122 to output the monaural audio signal at a predetermined output intensity, and controls the first speaker 121, the third speaker 123, and the fourth speaker 124 to output the monaural audio signal at an output intensity of 0, i.e., controls the first speaker 121, the third speaker 123, and the fourth speaker 124 not to output the monaural audio signal. For another example, when the position information indicates that the preset orientation is "upper left", the processor 13 controls the first speaker 121 and the third speaker 123 to output the monaural audio signal at a predetermined output intensity, and controls the second speaker 122 and the fourth speaker 124 to output the monaural audio signal at an output intensity of 0, that is, controls the second speaker 122 and the fourth speaker 124 not to output the monaural audio signal.
Therefore, the output intensity of each loudspeaker 12 can be quickly determined by inquiring the preset mapping table according to the position information of the audio signal, and the efficiency of audio control is improved.
The output intensity of the speaker 12 may be achieved by adjusting the output loudness of the speaker 12; in addition, since the middle-high frequency part in the audio signal has a small influence on the sound field, when the output intensity is adjusted, the gain of only the low frequency part in the monaural audio signal can be adjusted, thereby realizing the adjustment of the output intensity.
The audio control method, the audio control device 10, and the audio playing apparatus 100 of the embodiment of the application first determine whether the audio signal includes the position information, and when the position information exists, process the audio signal to divide the audio signal into a plurality of monaural audio signals corresponding to the position information one by one, and then when playing the audio signal, adjust the output intensity of the plurality of speakers 12 according to the position information corresponding to each monaural audio signal, so that the sound field of the audio playing apparatus 100 matches with the position information, so that the position sense and the surround sense of the sound during playing are strong, the use requirement of the user can be met, and the audio playing apparatus can adapt to a scene with a high position sense requirement on audio playing.
Referring to fig. 1, 3 and 4, in some embodiments, the audio control method further includes:
013: if the audio signal does not contain the position information, processing the audio signal to generate a left channel audio signal and a right channel audio signal, and acquiring the attitude information of the equipment;
014: when the posture information indicates that the audio playback apparatus 100 is placed vertically, controlling the first speaker 121 and the second speaker 122 to output a left channel audio signal and a right channel audio signal, respectively;
015: when the posture information indicates that the audio playback apparatus 100 is horizontally placed, the third speaker 123 and the fourth speaker 124 are controlled to output the left channel audio signal and the right channel audio signal, respectively.
In some embodiments, the audio control device 10 includes a processing module 03, a second control module 04, and a third control module 05. The processing module 03 is configured to process the audio signal to generate a left channel audio signal and a right channel audio signal when the audio signal does not include the position information, and acquire pose information of the device; the second control module 04 is configured to control the first speaker 121 and the second speaker 122 to output a left channel audio signal and a right channel audio signal, respectively, when the gesture information indicates that the audio playback device 100 is placed vertically; the third control module 05 is configured to control the third speaker 123 and the fourth speaker 124 to output a left channel audio signal and a right channel audio signal, respectively, when the attitude information indicates that the audio playback apparatus 100 is horizontally placed. That is, step 013 can be performed by the processing module 03, step 014 can be performed by the second control module 04, and step 015 can be performed by the third control module 05.
In some embodiments, the processor 13 is further configured to process the audio signal to generate a left channel audio signal and a right channel audio signal and obtain pose information of the device when the audio signal does not contain position information; when the posture information indicates that the audio playback apparatus 100 is placed vertically, controlling the first speaker 121 and the second speaker 122 to output a left channel audio signal and a right channel audio signal, respectively; when the posture information indicates that the audio playback apparatus 100 is horizontally placed, the third speaker 123 and the fourth speaker 124 are controlled to output the left channel audio signal and the right channel audio signal, respectively. That is, step 014, step 015 and step 016 may be implemented by the processor 13.
Specifically, when the audio signal does not include the position information, it is described that the audio signal does not need to output the position of the sound, and does not need to experience the position sense of the sound, therefore, the processor 13 may directly process the audio signal into a left channel audio signal and a right channel audio signal (e.g., down-mix the audio signal), and acquire the pose information of the device, and the pose information of the audio playback device 100 may be determined by the detection data of the pose sensor (e.g., a gyroscope, an accelerometer, etc.).
The processor 13 determines from the pose information a loudspeaker 12 for playing the audio signal. For example, if it is determined that the audio playback device 100 is vertically disposed (i.e., in the state shown in fig. 1) according to the posture information, the left channel audio signal and the right channel audio signal can be output through the first speaker 121 and the second speaker 122 of the first sidewall 113 and the second sidewall 114, respectively, so as to implement stereo output, and since the audio playback device 100 is vertically disposed, it is described that the first sidewall 113 and the second sidewall 114 correspond to both sides of the human ear, respectively, the left channel audio signal and the right channel audio signal can be output through the first speaker 121 and the second speaker 122, respectively, so as to enhance the stereo playback effect. If it is determined that the audio playback device 100 is horizontally placed (i.e., the state shown in fig. 5) according to the posture information, a left channel audio signal and a right channel audio signal can be output through the third speaker 123 and the fourth speaker 124 of the top wall 111 and the bottom wall 112, respectively, thereby implementing stereo output; moreover, since the audio playback device 100 is horizontally disposed, it is indicated that the top wall 111 and the bottom wall 112 respectively correspond to two sides of the human ear, and therefore, the left channel audio signal and the right channel audio signal are respectively output through the third speaker 123 and the fourth speaker 124, so that the stereo playback effect can be improved.
In addition, in order to ensure that the left channel audio signal is played corresponding to the left ear and the right channel audio signal is played corresponding to the right ear, so as to further enhance the stereo playing effect, the processor 13 may determine the attitude angle of the audio playing device 100 according to the attitude information, as shown in fig. 1, the attitude angle of the audio playing device 100 is in a state of 0 degree, and at this time, the processor 13 controls the first speaker 121 and the second speaker 122 to output the left channel audio signal and the right channel audio signal, respectively; as shown in fig. 5, in a state where the attitude angle of the audio playback device 100 is 90 degrees, the processor 13 controls the fourth speaker 124 and the third speaker 123 located at both sides of the audio playback device 100 to output the left channel audio signal and the right channel audio signal, respectively; as shown in fig. 6, in a state where the attitude angle of the audio playback device 100 is 180 degrees, the processor 13 controls the second speaker 122 and the first speaker 121 located at both sides of the audio playback device 100 to output the left channel audio signal and the right channel audio signal, respectively; as shown in fig. 7, in a state where the attitude angle of the audio playback apparatus 100 is 270 degrees, the processor 13 controls the third speaker 123 and the fourth speaker 124 to output the left channel audio signal and the right channel audio signal, respectively. In this way, by obtaining the accurate attitude angle of the audio playback device 100, the control of the left channel audio signal and the right channel audio signal can be more accurately performed, and the stereo playback effect can be improved.
In other embodiments, the attitude angle of the audio playback device 100 may not be 0 degrees, 90 degrees, 180 degrees, and 270 degrees as described above, but may be a degree between any two values, and therefore, the processor 13 may perform audio control with the attitude angle in the interval of plus or minus 45 degrees for each degree as the degree. For example, the audio control is performed with the attitude angle in the section [ -45 degrees, 45 degrees) as 0 degree, the audio control is performed with the attitude angle in the section [45 degrees, 135 degrees) as 90 degrees, the audio control is performed with the attitude angle in the section [135 degrees, 225 degrees) as 180 degrees, and the audio control is performed with the attitude angle in the section [225 degrees, 315 degrees) as 270 degrees. Thus, audio control at any attitude angle can be realized.
The speaker 12 may become blocked or even damaged, resulting in less or no sound being emitted. Such as when the user is holding the audio playback device 100, the speaker 12 may become plugged. Speaker 12 may detect whether the output audio signal is abnormal to determine whether there is an abnormality in speaker 12. For example, when the speaker 12 is blocked, the reflection intensity of the left channel signal and the right channel signal in the sound cavity is high, and therefore, it is possible to determine whether there is an abnormality in the speaker 12 by detecting whether the audio parameter of the audio signal output from the speaker 12 is abnormal. If the loudness is greater than the predetermined loudness, it is determined that the speaker 12 is blocked, and if not, it is determined that the speaker 12 is damaged.
When the speaker 12 is abnormal, the speaker 12 without abnormality may output the left channel audio signal and the right channel audio signal, for example, when the first speaker 121 and/or the second speaker 122 is abnormal, the third speaker 123 and the fourth speaker 124 may output the left channel audio signal and the right channel audio signal, respectively; and when the third speaker 123 and/or the fourth speaker 124 are abnormal, the left channel audio signal and the right channel audio signal are output through the first speaker 121 and the second speaker 122, respectively. Thus, a stereo output after hole blockage or damage can be realized.
Referring to fig. 1, 3 and 8, in some embodiments, step 012 includes:
0121: acquiring the distance between each speaker 12 and the position information;
0122: determining the output intensity of each loudspeaker 12 according to the corresponding distance of each loudspeaker 12;
0123: each speaker 12 is controlled to output a mono audio signal at a corresponding output intensity so that the sound field of the audio playback apparatus 100 matches the position information.
In some embodiments, the first control module 02 is further configured to obtain a distance from the location information for each speaker 12; determining the output intensity of each loudspeaker 12 according to the corresponding distance of each loudspeaker 12; each speaker 12 is controlled to output a mono audio signal at a corresponding output intensity so that the sound field of the audio playback apparatus 100 matches the position information. That is, steps 0121 through 0123 may be performed by the first control module 02.
In some embodiments, the processor 13 is further configured to obtain a distance of each speaker 12 from the position information; determining the output intensity of each loudspeaker 12 according to the corresponding distance of each loudspeaker 12; each speaker 12 is controlled to output a mono audio signal at a corresponding output intensity so that the sound field of the audio playback apparatus 100 matches the position information. That is, steps 0121 through 0123 may be implemented by the processor 13.
Specifically, in order to achieve a more accurate position for outputting the sound, the processor 13 may first obtain the distance between each speaker 12 and the position corresponding to the position information when determining the output intensity of each speaker 12, and then determine the output intensity of each speaker 12 according to the distance between each speaker 12 and the position of the sound, where the closer the distance is, the greater the output intensity is, and the farther the distance is, the smaller the output intensity is. For example, referring to fig. 5, when the position corresponding to the position information is located at the upper left of the audio playback device 100, the adjustment parameter of each speaker 12 may be determined according to the distance between the position and each speaker 12, so as to adjust the output intensity of each speaker 12 by the adjustment parameter based on the predetermined playback parameter output by each speaker 12, if the distance between the position and the fourth speaker 124, the first speaker 121, the second speaker 122, and the third speaker 123 gradually increases, the adjustment parameter of the fourth speaker 124 may be 1.5, the adjustment parameter of the first speaker 121 may be 0.5, and the second speaker 122 and the fourth speaker 124 may set the adjustment parameter to 0 because the distance is farther, that is, the second speaker 122 and the fourth speaker 124 are not used for outputting the monaural audio signal corresponding to the position information. For example, the distance corresponding to each speaker 12 and the distance corresponding to the fourth speaker 124 (i.e., the distance corresponding to the speaker 12 closest to the position) may be differentiated, and if the difference is greater than a predetermined difference threshold (e.g., the predetermined difference threshold may be determined according to the distance between the speakers 12), the adjustment parameter is set to 0, so as to improve the accuracy of the sound position output. Thus, compared with the situation that each loudspeaker 12 only uses the preset playing parameters for output, the output sound position is less, and the adjustment parameter is determined for each loudspeaker 12 through the position information and the distance of each loudspeaker 12, so that more accurate and rich sound position output can be realized.
In some embodiments, the processor 13 may further process the audio signal output by the speaker 12, such as at least one of equalization, dynamic range compression, gain processing, and phase adjustment.
Specifically, the equalization process is to perform adjustment of timbre by performing gain or attenuation on one or more frequency bands of the audio signal; dynamic range compression can adjust the amplitude of the signal to make the sound softer or louder; the gain processing can gain the specific frequency band according to the favorite degree of the user to the audios of different frequency bands so as to obtain the audio playing effect meeting the requirements of the user, for example, the low-frequency part in the audio signal is enhanced, so that the bass effect is improved; the phase modulation enables the audio signals output by different speakers 12 to reach the ears of the user after being played, thereby avoiding the phenomenon of noise.
Referring to fig. 9, one or more non-transitory computer-readable storage media 300 containing a computer program 302 according to an embodiment of the present disclosure, when the computer program 302 is executed by one or more processors 13, enable the processor 13 to perform the detection method according to any of the embodiments.
For example, referring to fig. 1 and 3 in conjunction, the computer program 302, when executed by the one or more processors 13, causes the processors 13 to perform the steps of:
011: determining whether the audio signal contains position information, the position information being used to instruct at least one of the plurality of speakers 12 to play the audio signal;
012: if so, the speaker 12 associated with the position information is controlled to play the audio signal with an output intensity such that the sound field of the audio playing apparatus 100 matches the position information.
As another example, referring to fig. 1 and 8 in conjunction, when the computer program 302 is executed by the one or more processors 13, the processors 13 may further perform the steps of:
013: if the audio signal does not contain the position information, processing the audio signal to generate a left channel audio signal and a right channel audio signal, and acquiring the attitude information of the equipment;
014: when the posture information indicates that the audio playback apparatus 100 is placed vertically, controlling the first speaker 121 and the second speaker 122 to output a left channel audio signal and a right channel audio signal, respectively;
015: when the posture information indicates that the audio playback apparatus 100 is horizontally placed, the third speaker 123 and the fourth speaker 124 are controlled to output the left channel audio signal and the right channel audio signal, respectively.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and those skilled in the art can make changes, modifications, substitutions and alterations to the above embodiments within the scope of the present invention, which is defined by the claims and their equivalents.
Claims (14)
1. An audio control method applied to an audio playing device, wherein the audio playing device comprises a plurality of speakers, the audio control method comprising:
determining whether an audio signal contains position information, the position information for association with at least one of a plurality of the speakers;
and if so, playing the audio signal through the loudspeaker associated with the position information.
2. The audio control method of claim 1, wherein the playing the audio signal through the speaker associated with the location information comprises: the speaker associated with the position information plays the audio signal with predetermined play parameters.
3. The audio control method according to claim 2, wherein the position information includes a plurality of preset orientations, and the speaker associated with the position information plays the audio signal with predetermined play parameters, including:
and controlling one or more loudspeakers corresponding to the preset orientation to output the audio signals according to the preset playing parameters based on a preset mapping table so that the sound field of the audio playing device is matched with the preset orientation.
4. The audio control method according to claim 1, further comprising:
if not, determining the loudspeaker for playing the audio signal according to the attitude information of the audio playing equipment.
5. The audio control method of claim 4, wherein the audio playing device comprises a first speaker, a second speaker, a third speaker and a fourth speaker, the first speaker and the second speaker are respectively located at left and right sides of the audio playing device, the third speaker and the fourth speaker are respectively located at upper and lower sides of the audio playing device, and determining the speaker playing the audio according to the posture information of the audio playing device comprises:
when the posture information indicates that the audio playing device is in a vertical screen placing state, playing the audio signal through the first loudspeaker and the second loudspeaker;
and when the posture information indicates that the audio playing equipment is in a horizontal screen placing state, playing the audio signal through the third loudspeaker and the fourth loudspeaker.
6. The audio control method according to claim 5, wherein the determining the speaker playing the audio according to the pose information of the audio playing device comprises:
acquiring the attitude information of the audio playing equipment, wherein the attitude information comprises an attitude angle; and
when the attitude angle is 0 degrees, controlling the first loudspeaker and the second loudspeaker to output the left channel audio signal and the right channel audio signal respectively;
controlling the fourth speaker and the third speaker to output the left channel audio signal and the right channel audio signal, respectively, when the attitude angle is 90 degrees;
controlling the second speaker and the first speaker to output the left channel audio signal and the right channel audio signal, respectively, when the attitude angle is 180 degrees;
and when the attitude angle is 270 degrees, controlling the third loudspeaker and the fourth loudspeaker to output the left channel audio signal and the right channel audio signal respectively.
7. An audio control method applied to an audio playing device, wherein the audio playing device comprises a plurality of speakers, the audio control method comprising:
determining position information in an audio signal, the position information for association with at least one of a plurality of the loudspeakers;
playing the audio signal through the speaker associated with the location information.
8. The audio control method of claim 1, wherein the playing the audio signal through the speaker associated with the location information comprises: the speaker associated with the position information plays the audio signal with predetermined play parameters.
9. An audio playback device comprising a plurality of speakers and a processor configured to determine whether an audio signal contains position information, the position information configured to be associated with at least one of the plurality of speakers; and when the audio signal has the position information, playing the audio signal through the loudspeaker associated with the position information.
10. The audio playback device of claim 9, wherein the processor is further configured to play the audio signal through the speaker associated with the location information with predetermined playback parameters.
11. The audio playback device of claim 9, wherein when the audio signal does not have position information, the processor is further configured to determine the speaker playing back the audio signal according to the pose information of the audio playback device.
12. The audio playback device of claim 11, further comprising a gesture sensor configured to determine the gesture information.
13. An audio playback device comprising a plurality of speakers and a processor for determining position information in an audio signal, the position information for association with at least one of the plurality of speakers; and playing the audio signal through the speaker associated with the location information.
14. The audio playback device of claim 13, wherein the processor is further configured to play the audio signal through the speaker associated with the location information with predetermined playback parameters.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111089086.6A CN113810838A (en) | 2021-09-16 | 2021-09-16 | Audio control method and audio playing device |
| PCT/CN2022/111115 WO2023040515A1 (en) | 2021-09-16 | 2022-08-09 | Audio control method and audio playback device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111089086.6A CN113810838A (en) | 2021-09-16 | 2021-09-16 | Audio control method and audio playing device |
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| CN116347320A (en) * | 2022-09-07 | 2023-06-27 | 荣耀终端有限公司 | Audio playing method and electronic equipment |
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