Audio control method and audio playback device

Abstract

The audio control method of the embodiment of the present application is applied to an audio playback device, the audio playback device includes multiple speakers, and the audio control method includes determining whether the audio signal contains position information, the position information is used to associate with at least one of the multiple speakers; if so, the audio signal is played through the speaker associated with the position information. The audio control method and audio playback device of the present application can match the sound field of the audio playback device with the position information, and the sound has a strong sense of position and surround when playing, which can meet the user's usage needs and can adapt to scenes with high requirements for the sense of position of audio playback.

Description

Technical Field

[0001] The present application relates to the technical field of audio control, and in particular to an audio control method and an audio playback device. Background Art

[0002] With the development of the times, electronic devices are integrating more and more functions. Audio playback is one of the main functions of electronic devices. However, current electronic devices can only play stereo sound, which is limited in application scenarios. Summary of the invention

[0003] The embodiments of the present application provide an audio control method and an audio playback device.

[0004] The audio control method of the embodiment of the present application is applied to an audio playback device, which includes multiple speakers. The audio control method includes determining whether the audio signal contains position information, and the position information is used to be associated with at least one of the multiple speakers; if so, the audio signal is played through the speaker associated with the position information.

[0005] An audio control method according to another embodiment of the present application is applied to an audio playback device, wherein the audio playback device includes multiple speakers. The audio control method includes determining position information in an audio signal, wherein the position information is used to be associated with at least one of the multiple speakers; and playing the audio signal through the speaker associated with the position information.

[0006] The audio playback device of the embodiment of the present application includes multiple speakers and a processor, the processor is used to determine whether the audio signal contains position information, the position information is used to be associated with at least one of the multiple speakers; and when the audio signal has the position information, the audio signal is played through the speaker associated with the position information.

[0007] An audio playback device according to another embodiment of the present application includes multiple speakers and a processor, wherein the processor is used to determine position information in an audio signal, wherein the position information is used to be associated with at least one of the multiple speakers; and the audio signal is played through the speaker associated with the position information.

[0008] The audio control method and audio playback device of the present application can match the sound field of the audio playback device with the position information by controlling the speakers associated with the position information to play the audio signal, so that the sound has a stronger sense of position and surround when being played, which can meet the user's usage needs and can adapt to scenarios with high requirements for the sense of position of audio playback.

[0009] Additional aspects and advantages of the embodiments of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The above and / or additional aspects and advantages of the embodiments of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0011] Figure 1 It is a front schematic diagram of an audio playback device according to certain embodiments of the present application.

[0012] Figure 2 It is a schematic diagram of the back side of the audio playback device of certain embodiments of the present application.

[0013] Figure 3 It is a flowchart of an audio control method of certain embodiments of the present application.

[0014] Figure 4 It is a module schematic diagram of an audio control device of certain embodiments of the present application.

[0015] Figures 5 to 7 It is a scenario diagram of the audio control method of certain embodiments of the present application.

[0016] Figure 8 It is a flowchart of an audio control method of certain embodiments of the present application.

[0017] Fig. 9 It is a connection diagram of a processor and a computer-readable storage medium in certain embodiments of the present application. DETAILED DESCRIPTION

[0018] The embodiments of the present invention are further described below in conjunction with the accompanying drawings. The same or similar reference numerals in the accompanying drawings represent the same or similar elements or elements with the same or similar functions.

[0019] In addition, the embodiments of the present invention described below in conjunction with the drawings are exemplary and are only used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0020] At present, more and more applications (such as shooting games, etc.) require that when audio is played, users can accurately identify the direction of sound. However, current electronic devices generally only have speakers on the top and bottom, and can only output stereo sound for left and right channels. The surround and position sense of the sound are weak, which cannot meet the user's usage needs.

[0021] See also Figure 1The audio playback device 100 of the embodiment of the present application includes a housing 11, a plurality of speakers 12 and a processor 13.

[0022] The audio playback device 100 may be a mobile phone, a tablet computer, a display device, a laptop computer, a smart watch, an ATM, a gate machine, a head-mounted display device, a game console, etc. Figure 2 As shown, the embodiment of the present application is described by taking the audio playback device 100 as a mobile phone as an example. It can be understood that the specific form of the audio playback device 100 is not limited to a mobile phone. The housing 11 can also be used to install functional modules such as a display device, an imaging device, a power supply device, and a communication device of the audio playback device 100, so that the housing 11 provides dustproof, drop-proof, waterproof and other protections for the functional modules.

[0023] The housing 11 may include multiple sub-housings (not shown), and the multiple speakers 12 are respectively disposed in the multiple sub-housings. The sub-housings isolate the speakers 12 from other functional components in the audio playback device 100 to prevent the audio vibration of the speakers 12 from affecting other functional components.

[0024] 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 to each other, the front face 115 and the back face 116 are opposite to each other, 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 face 115 and the back face 116. The top wall 111, the bottom wall 112, the first side wall 113, the second side wall 114, the front face 115, and the back face 116 enclose an accommodation space 117, and the plurality of speakers 12 and the processor 13 are disposed in the accommodation space 117.

[0025] The plurality of speakers 12 are arranged around the housing 11 so that the sound field of the audio playback device 100 covers the surrounding space of the audio playback device 100. Figure 1 As shown, there are four speakers 12, which are respectively arranged on the top wall 111, the bottom wall 112, the first side wall 113, and the second side wall 114 of the audio playback device 100. In other embodiments, the number of speakers 12 can be eight, and every two speakers 12 form a group, which are respectively arranged on the top wall 111, the bottom wall 112, the first side wall 113, and the second side wall 114 of the audio playback device 100, so as to improve the audio playback effect.

[0026] The top wall 111, the bottom wall 112, the first side wall 113 and the second side 8114 are all provided with sound holes 118, and the position of the sound holes 118 is opposite to the speaker 12, so that the audio output by the speaker 12 can be directly output from the corresponding sound holes 118, shortening the propagation path of the audio in the shell 11 and reducing the audio loss.

[0027] The two speakers 12 facing each other are symmetrically designed. For example, the two speakers 12 located on the top wall 111 and the bottom wall 112 are symmetrically designed (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), and the two speakers 12 located on the two side walls are symmetrically designed (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 multiple speakers 12 can be the same speakers 12, that is, the audio output parameters of the multiple speakers 12 are the same. The multiple speakers 12 can also be symmetrically designed, such as four speakers 12 located at the middle position of the top wall 111, the middle position of the bottom wall 112, and the middle positions of the two side walls, that is, the centers of the four speakers 12 are connected in sequence to form a rhombus, and the four speakers 12 are all the same speakers 12, thereby ensuring the balance when the multiple speakers 12 output audio at the same time.

[0028] Compared with the current asymmetric design of the speakers 12, such as one is an earpiece and the other is a bottom speaker 12, the sound field balance of the asymmetric dual speakers 12 is poor, and the symmetrical design of the multiple speakers 12 allows the user to receive a basically balanced sound field from the multiple speakers 12 when holding the audio playback device 100. Of course, the multiple speakers 12 can also be designed asymmetric, for example, one of the speakers 12 is used as an earpiece (generally with poor performance). When the multiple speakers 12 play audio together, the performance of the speaker 12 that is not used as an earpiece can be reduced, so that the audio output performance of the multiple speakers 12 is basically consistent, thereby ensuring the balance of the sound field.

[0029] Please combine Figure 2 In some embodiments, in addition to the multiple speakers 12 arranged around the housing 11, the audio playback device 100 also includes a speaker 12 arranged on the back 116. At the same time, a corresponding sound outlet 118 is opened on the back 116, so that the sound field of the audio playback device 100 can cover the side corresponding to the back 116. In other embodiments, the audio playback device 100 also includes a screen sound-emitting component (not shown), which can emit sound from the front 115, so that the sound field of the audio playback device 100 can cover the side corresponding to the front 115.

[0030] When the speaker 12 is arranged on the back side 116, compared with the speaker 12 arranged 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 affected by the smaller width available for installation at the edge of the housing 11, resulting in the volume not being too large. The space inside the housing 11 is larger, and the volume of the sound cavity of the speaker 12 arranged on the back side 116 can be larger than the volume of the sound cavity of the speaker 12 arranged on the edge of the housing 11, thereby realizing a large sound cavity design and improving the sound effect of the speaker 12 arranged on the back side 116. The sound cavity includes a front cavity and a rear cavity. In order to improve the sound reflection effect, the volume of the front cavity of the speaker 12 arranged on the back side 116 can be larger than the volume of the front cavity of the speaker 12 arranged on the edge of the housing 11. In order to improve the sound enhancement effect of the speaker 12 arranged on the back side 116, the volume of the rear cavity of the speaker 12 arranged on the back side 116 can be larger than the volume of the rear cavity of the speaker 12 arranged on the edge of the housing 11.

[0031] See also Figure 1 , Figure 3 and Figure 4 The audio control method of the embodiment of the present application is applied to the audio playback device 100 of any of the above embodiments, and the audio control method includes:

[0032] 011: Determine whether the audio signal contains position information, where the position information is used to be associated with at least one of the multiple speakers 12;

[0033] 012: If yes, play the audio signal through the speaker 12 associated with the position information.

[0034] The audio control device 10 of the embodiment of the present application is applied to the audio playback device 100, and the audio control device 10 includes a determination module 01 and a first control module 02. The determination module 01 is used to determine whether the audio signal contains position information, and the position information is used to be associated with at least one of the multiple speakers 12; the first control module 02 is used to play the audio signal through the speaker 12 associated with the position information. That is to say, step 011 can be performed by the determination module 01, and step 012 can be performed by the first control module 02.

[0035] The processor 13 of the audio playback device 100 of the embodiment of the present application is used to determine whether the audio signal contains position information, and the position information is used to be associated with at least one of the multiple speakers 12; and when the audio signal has position information, the audio signal is played through the speaker 12 associated with the position information. That is, step 011 can be performed by the processor 13, and step 012 can be performed by the processor 13 in conjunction with the multiple speakers 12.

[0036] Specifically, when the audio playback device 100 is playing audio, the processor 13 can first identify the audio signal to determine whether the audio signal contains position information. When the audio signal includes position information, it indicates that the audio signal requires the position of the sound to be output, reflecting the sense of position of the sound. At this time, the processor 13 can first process the audio signal to generate a plurality of mono audio signals, such as the processor 13 performs upmixing processing on the audio signal to generate a plurality of mono audio signals, each of which corresponds to a position information. The number of channels can be determined according to the type of position information contained in the audio signal, or the number of channels can be a preset number of channels. Of course, the processor 13 may not process the audio signal, but directly control one or more speakers 12 associated with the position information to output the audio signal.

[0037] In other implementations, the audio signal in the audio playback device 100 always carries position information, and the processor 13 does not need to identify whether the audio signal contains position information. It only needs to obtain the position information in each audio signal and control the associated speaker 12 to play according to the position information.

[0038] The processor 13 can control one or more speakers 12 associated with the position information to play the audio signal. During the playback, the processor 13 controls each associated speaker 12 to play the audio signal with predetermined playback parameters according to the position information of each mono audio signal in the audio signal.

[0039] by Figure 1 Taking the audio playback device 100 shown as an example, the speakers 12 located on the left and right sides of the audio playback device 100 are respectively the first speaker 121 and the second speaker 122, and the speakers 12 located on the upper and lower sides of the audio playback device 100 are respectively the third speaker 123 and the fourth speaker 124. Among them, the first speaker 121 is arranged on the first side wall 113, the second speaker 122 is arranged on the second side wall 114, the third speaker 123 is arranged on the top wall 111, and the fourth speaker 124 is arranged on the bottom wall 112.

[0040] The position information includes a plurality of preset positions, and a preset mapping relationship table can be set for each preset position and the playback parameter (such as output intensity) of the corresponding speaker 12. After determining the preset position of the mono audio signal, the output intensity of each speaker 12 corresponding to the preset position can be searched through the mapping relationship table, thereby controlling the output intensity of each speaker 12, so that the sound field of the audio playback device 100 matches the preset position, that is, the mono audio signal is output toward the preset position. Among them, the output intensity of the speaker 12 is P, which means that the speaker 12 is associated with the corresponding preset position.

[0041] The specific mapping table is as follows: Table 1:

[0042]

[0043] Among them, P in Table 1 is a predetermined output intensity, and the predetermined output intensity can be determined according to the volume set by the user.

[0044] For example, when the position information indicates that the preset orientation is "left", the processor 13 controls the first speaker 121 to output the mono audio signal at a predetermined output intensity, and controls the output intensity of the mono audio signal from the second speaker 122 to the fourth speaker 124 to be 0, that is, controls the second speaker 122 to the fourth speaker 124 not to output the mono 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 mono audio signal at a predetermined output intensity, and controls the output intensity of the mono audio signal from the first speaker 121, the third speaker 123 and the fourth speaker 124 to be 0, that is, controls the first speaker 121, the third speaker 123 and the fourth speaker 124 not to output the mono audio signal. For another example, when the position information indicates that the preset direction is "upper left", the processor 13 controls the first speaker 121 and the third speaker 123 to output the mono audio signal with a predetermined output intensity, and controls the second speaker 122 and the fourth speaker 124 to output the mono audio signal with an output intensity of 0, that is, controls the second speaker 122 and the fourth speaker 124 not to output the mono audio signal.

[0045] In this way, by searching the preset mapping table through the position information of the audio signal, the output intensity of each speaker 12 can be quickly determined, thereby improving the efficiency of audio control.

[0046] The output intensity of the speaker 12 can be achieved by adjusting the output loudness of the speaker 12; in addition, since the mid- and high-frequency parts of the audio signal have little effect on the sound field, when adjusting the output intensity, only the gain of the low-frequency part of the mono audio signal can be adjusted to achieve output intensity adjustment.

[0047] The audio control method, audio control device 10 and audio playback device 100 of the embodiment of the present application first determine whether the audio signal contains position information. When the position information exists, the audio signal is processed to divide the audio signal into multiple mono audio signals corresponding to the position information one by one. Then, when playing the audio signal, the output intensity of the multiple speakers 12 is adjusted according to the position information corresponding to each mono audio signal, so that the sound field of the audio playback device 100 matches the position information, so that the sound has a stronger sense of position and surround when playing, which can meet the user's usage needs and can adapt to scenarios with high requirements for the sense of position of audio playback.

[0048] See also Figure 1, Figure 3 and Figure 4 In some embodiments, the audio control method further includes:

[0049] 013: If the audio signal does not include position information, process the audio signal to generate a left channel audio signal and a right channel audio signal, and obtain posture information of the device;

[0050] 014: when the posture information indicates that the audio playback device 100 is placed vertically, control the first speaker 121 and the second speaker 122 to output a left channel audio signal and a right channel audio signal respectively;

[0051] 015: When the posture information indicates that the audio playback device 100 is placed horizontally, the third speaker 123 and the fourth speaker 124 are controlled to output a left channel audio signal and a right channel audio signal respectively.

[0052] 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 used to process the audio signal when the audio signal does not contain position information to generate a left channel audio signal and a right channel audio signal, and obtain the posture information of the device; the second control module 04 is used to control the first speaker 121 and the second speaker 122 to output the left channel audio signal and the right channel audio signal respectively when the posture information indicates that the audio playback device 100 is placed vertically; the third control module 05 is used to control the third speaker 123 and the fourth speaker 124 to output the left channel audio signal and the right channel audio signal respectively when the posture information indicates that the audio playback device 100 is placed horizontally. That is to say, step 013 can be executed by the processing module 03, step 014 can be executed by the second control module 04, and step 015 can be executed by the third control module 05.

[0053] In some embodiments, the processor 13 is further used to process the audio signal to generate a left channel audio signal and a right channel audio signal when the audio signal does not contain position information, and obtain the posture information of the device; when the posture information indicates that the audio playback device 100 is placed vertically, control the first speaker 121 and the second speaker 122 to output the left channel audio signal and the right channel audio signal respectively; when the posture information indicates that the audio playback device 100 is placed horizontally, control the third speaker 123 and the fourth speaker 124 to output the left channel audio signal and the right channel audio signal respectively. That is to say, steps 014, 015 and 016 can be implemented by the processor 13.

[0054] Specifically, when the audio signal does not contain position information, it means that the audio signal does not need to output the position of the sound, and there is no need to experience the sense of position of the sound. Therefore, the processor 13 can directly process the audio signal into a left channel audio signal and a right channel audio signal (such as downmixing the audio signal) and obtain the posture information of the device. The posture information of the audio playback device 100 can be determined through the detection data of a posture sensor (such as a gyroscope, accelerometer, etc.).

[0055] The processor 13 determines the speaker 12 for playing the audio signal according to the posture information. For example, if it is determined according to the posture information that the audio playback device 100 is placed vertically (i.e. Figure 1 When the audio playback device 100 is in the state shown in the figure), the left channel audio signal and the right channel audio signal can be outputted respectively by the first speaker 121 and the second speaker 122 of the first side wall 113 and the second side wall 114, thereby realizing stereo output. Since the audio playback device 100 is in a vertical position, it means that the first side wall 113 and the second side wall 114 correspond to the two sides of the human ear respectively. Therefore, the left channel audio signal and the right channel audio signal can be outputted respectively by the first speaker 121 and the second speaker 122, thereby improving the stereo playback effect. If it is determined according to the posture information that the audio playback device 100 is placed horizontally (i.e. Figure 5 When the audio player 100 is in the state shown in the figure, the left channel audio signal and the right channel audio signal can be output respectively through the third speaker 123 and the fourth speaker 124 of the top wall 111 and the bottom wall 112, thereby realizing stereo output; and since the audio player 100 is placed horizontally, it means that the top wall 111 and the bottom wall 112 correspond to the two sides of the human ear respectively, therefore, the left channel audio signal and the right channel audio signal can be output respectively through the third speaker 123 and the fourth speaker 124, thereby improving the stereo playback effect.

[0056] In addition, in order to ensure that the left channel audio signal is played to the left ear and the right channel audio signal is played to the right ear to further improve the stereo playback effect, the processor 13 can determine the posture angle of the audio playback device 100 according to the posture information, such as Figure 1 As shown, the posture angle of the audio playback device 100 is 0 degrees. 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; Figure 5 As shown, the posture angle of the audio playback device 100 is 90 degrees, and the processor 13 controls the fourth speaker 124 and the third speaker 123 located on both sides of the audio playback device 100 to output the left channel audio signal and the right channel audio signal respectively; Figure 6As shown, the posture angle of the audio playback device 100 is 180 degrees, and the processor 13 controls the second speaker 122 and the first speaker 121 located on both sides of the audio playback device 100 to output the left channel audio signal and the right channel audio signal respectively; Figure 7 As shown, the posture angle of the audio playback device 100 is 270 degrees, and 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 posture angle of the audio playback device 100, the left channel audio signal and the right channel audio signal can be more accurately controlled, and the stereo playback effect can be improved.

[0057] 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 the degree between any two values. Therefore, the processor 13 can use the attitude angle within the positive and negative 45 degree interval of each degree as the degree for audio control. For example, the attitude angle in the interval [-45 degrees, 45 degrees) is used as 0 degrees for audio control, the attitude angle in the interval [45 degrees, 135 degrees) is used as 90 degrees for audio control, the attitude angle in the interval [135 degrees, 225 degrees) is used as 180 degrees for audio control, and the attitude angle in the interval [225 degrees, 315 degrees) is used as 270 degrees for audio control. In this way, audio control at any attitude angle can be achieved.

[0058] The speaker 12 may be blocked or even damaged, resulting in a smaller sound or even no sound. For example, when the user holds the audio playback device 100, the speaker 12 may be blocked. The speaker 12 can detect whether the output audio signal is abnormal to determine whether the speaker 12 is abnormal. 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. Therefore, it can be determined whether the speaker 12 is abnormal by detecting whether the audio parameters of the audio signal output by the speaker 12 are abnormal. If the loudness is greater than the predetermined loudness, it is determined that the speaker 12 is blocked, and if there is no loudness, it can be determined that the speaker 12 is damaged.

[0059] When the speaker 12 is abnormal, the left channel audio signal and the right channel audio signal can be output through the speaker 12 that is not abnormal. For example, when the first speaker 121 and / or the second speaker 122 is abnormal, the left channel audio signal and the right channel audio signal are output through the third speaker 123 and the fourth speaker 124 respectively; and when the third speaker 123 and / or the fourth speaker 124 is 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. In this way, stereo output after the hole is blocked or damaged can be achieved.

[0060] See also Figure 1 , Figure 3 and Figure 8 In some embodiments, step 012 includes:

[0061] 0121: Obtain the distance between each speaker 12 and the position information;

[0062] 0122: Determine the output intensity of each speaker 12 according to the distance corresponding to each speaker 12;

[0063] 0123: Control each speaker 12 to output a mono audio signal with a corresponding output intensity, so that the sound field of the audio playback device 100 matches the position information.

[0064] In some embodiments, the first control module 02 is further configured to obtain the distance between each speaker 12 and the position information; determine the output intensity of each speaker 12 according to the distance corresponding to each speaker 12; and control each speaker 12 to output a mono audio signal with the corresponding output intensity, so that the sound field of the audio playback device 100 matches the position information. That is, steps 0121 to 0123 can be performed by the first control module 02.

[0065] In some embodiments, the processor 13 is further configured to obtain a distance between each speaker 12 and the position information; determine an output intensity of each speaker 12 according to the distance corresponding to each speaker 12; and control each speaker 12 to output a mono audio signal with a corresponding output intensity, so that the sound field of the audio playback device 100 matches the position information. That is, steps 0121 to 0123 can be implemented by the processor 13.

[0066] Specifically, in order to achieve a more accurate output of the sound position, the processor 13 may first obtain the distance between each speaker 12 and the position corresponding to the position information when determining the output strength of each speaker 12, and then determine the output strength of each speaker 12 according to the distance between each speaker 12 and the sound position. The closer the distance, the greater the output strength, and the farther the distance, the smaller the output strength. For example, refer to Figure 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 can 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 adjusting the parameter on the basis of the predetermined playback parameter output by each speaker 12. For example, 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 can be 1.5, the adjustment parameter of the first speaker 121 is 0.5, and the adjustment parameter of the second speaker 122 and the fourth speaker 124 can be set to 0 due to the long distance, that is, the second speaker 122 and the fourth speaker 124 are not used to output the mono 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 (that is, the distance corresponding to the speaker 12 closest to the position) can be subtracted. If the difference is greater than a predetermined difference threshold (such as the predetermined difference threshold can be determined according to the distance between the speakers 12), the adjustment parameter is set to 0, thereby improving the accuracy of the sound position output. In this way, compared with each speaker 12 only using predetermined playback parameters for output, the sound positions that can be output are fewer. By determining an adjustment parameter for each speaker 12 through the position information and the distance of each speaker 12, more accurate and rich sound position output can be achieved.

[0067] In some embodiments, the processor 13 may further process the audio signal output by the speaker 12, such as at least one of equalization processing, dynamic range compression, gain processing, and phase adjustment.

[0068] Specifically, equalization processing is to adjust the timbre by gaining or attenuating one or more frequency bands of the audio signal; dynamic range compression can adjust the amplitude of the signal to make the sound sound softer or louder; gain processing can gain specific frequency bands according to the user's preference for audio in different frequency bands to obtain an audio playback effect that meets the user's needs, such as enhancing the low-frequency part of the audio signal to enhance the bass effect; phase modulation can enable the audio signals output by different speakers 12 to reach the human ear at the same time after playback, avoiding the phenomenon of dragging sound.

[0069] See also Fig. 9 One or more non-volatile computer-readable storage media 300 containing a computer program 302 according to an embodiment of the present application, when the computer program 302 is executed by one or more processors 13, enables the processor 13 to execute the detection method of any of the above-mentioned embodiments.

[0070] For example, please combine Figure 1 and Figure 3When the computer program 302 is executed by one or more processors 13, the processor 13 performs the following steps:

[0071] 011: Determine whether the audio signal contains position information, where the position information is used to indicate at least one of the multiple speakers 12 to play the audio signal;

[0072] 012: If yes, then control the output intensity of the speaker 12 associated with the position information when playing the audio signal, so that the sound field of the audio playback device 100 matches the position information.

[0073] For another example, please combine Figure 1 and Figure 8 When the computer program 302 is executed by one or more processors 13, the processor 13 may further perform the following steps:

[0074] 013: If the audio signal does not include position information, process the audio signal to generate a left channel audio signal and a right channel audio signal, and obtain posture information of the device;

[0075] 014: when the posture information indicates that the audio playback device 100 is placed vertically, control the first speaker 121 and the second speaker 122 to output a left channel audio signal and a right channel audio signal respectively;

[0076] 015: When the posture information indicates that the audio playback device 100 is placed horizontally, the third speaker 123 and the fourth speaker 124 are controlled to output a left channel audio signal and a right channel audio signal respectively.

[0077] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. An audio control method, characterized in that: Applied to an audio playback device, the audio playback device includes a plurality of speakers, and the audio control method includes: determining whether the audio signal includes position information for associating with at least one of the plurality of speakers; If so, playing the audio signal through the speaker associated with the position information; The playing of the audio signal through the speaker associated with the position information comprises: Obtaining the distance between each of the speakers and the position information; Determining the output intensity of each of the speakers according to the distance corresponding to each of the speakers; Each of the speakers is controlled to output a mono audio signal with a corresponding output intensity, so that the sound field of the audio playback device matches the position information.

2. The audio control method according to claim 1, characterized in that: The playing the audio signal through the speaker associated with the position information includes: the speaker associated with the position information plays the audio signal with predetermined playing parameters.

3. The audio control method according to claim 2, characterized in that: The position information includes a plurality of preset positions, and the speaker associated with the position information plays the audio signal with a predetermined playing parameter, including: Based on a preset mapping table, one or more speakers corresponding to the preset orientation are controlled to output the audio signal with the predetermined playback parameters, so that the sound field of the audio playback device matches the preset orientation.

4. The audio control method according to claim 1, characterized in that: Also includes: If not, the speaker that plays the audio signal is determined according to the posture information of the audio playback device.

5. The audio control method according to claim 4, characterized in that: The first speaker, the second speaker, the third speaker and the fourth speaker of the audio playback device, wherein the first speaker and the second speaker are respectively located at the left and right sides of the audio playback device, and the third speaker and the fourth speaker are respectively located at the upper and lower sides of the audio playback device, and the speaker for playing the audio is determined according to the posture information of the audio playback device, including: When the posture information indicates that the audio playback device is in a vertical screen placement state, playing the audio signal through the first speaker and the second speaker; When the posture information indicates that the audio playback device is in a horizontal screen placement state, the audio signal is played through the third speaker and the fourth speaker.

6. The audio control method according to claim 5, characterized in that: The step of determining the speaker that plays the audio according to the posture information of the audio playback device includes: Acquire the posture information of the audio playback device, the posture information including a posture angle; and When the attitude angle is 0 degrees, controlling the first speaker and the second speaker to output a left channel audio signal and a right channel audio signal respectively; When the attitude angle is 90 degrees, 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 180 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 270 degrees, the third speaker and the fourth speaker are controlled to output the left channel audio signal and the right channel audio signal respectively.

7. An audio control method, characterized in that: Applied to an audio playback device, the audio playback device includes a plurality of speakers, and the audio control method includes: determining position information in the audio signal, the position information being used to associate with at least one of the plurality of speakers; playing the audio signal through the speaker associated with the position information; The playing of the audio signal through the speaker associated with the position information comprises: Obtaining the distance between each of the speakers and the position information; Determining the output intensity of each of the speakers according to the distance corresponding to each of the speakers; Each of the speakers is controlled to output a mono audio signal with a corresponding output intensity, so that the sound field of the audio playback device matches the position information.

8. An audio playback device, characterized in that: The invention comprises a plurality of speakers and a processor, wherein the processor is used to determine whether an audio signal contains position information, wherein the position information is used to be associated with at least one of the plurality of speakers; and when the audio signal has the position information, the audio signal is played through the speaker associated with the position information; The processor is also used to obtain the distance between each of the speakers and the position information; determine the output intensity of each of the speakers according to the distance corresponding to each of the speakers; and control each of the speakers to output a mono audio signal with a corresponding output intensity so that the sound field of the audio playback device matches the position information.

9. The audio playback device according to claim 8, characterized in that: The processor is further configured to play the audio signal with predetermined playing parameters through the speaker associated with the position information.

10. The audio playback device according to claim 8, characterized in that: When the audio signal does not have position information, the processor is further configured to determine the speaker that plays the audio signal according to the posture information of the audio playback device.

11. The audio playback device according to claim 10, characterized in that: The audio playback device further includes a posture sensor, and the posture sensor is used to determine the posture information.

12. An audio playback device, characterized in that: comprising a plurality of speakers and a processor, the processor being configured to determine position information in an audio signal, the position information being configured to be associated with at least one of the plurality of speakers; and playing the audio signal through the speaker associated with the position information; The processor is also used to obtain the distance between each of the speakers and the position information; determine the output intensity of each of the speakers according to the distance corresponding to each of the speakers; and control each of the speakers to output a mono audio signal with a corresponding output intensity so that the sound field of the audio playback device matches the position information.

13. The audio playback device according to claim 12, characterized in that: The processor is further configured to play the audio signal with predetermined playing parameters through the speaker associated with the position information.

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