A terminal, an audio signal processing method, an apparatus, a device and a storage medium

Abstract

The present invention provides a terminal, an audio signal processing method, an apparatus, a device and a storage medium. The terminal includes a terminal body and at least two receivers. The terminal body includes a screen side and a non-screen side. At least two first sound outlets are provided on the non-screen side, and at least two first sound outlets are located on different surfaces of the non-screen side. Each receiver is provided with a second sound outlet, and at least one second sound outlet corresponds to at least one first sound outlet on the first surface of the non-screen side, and at least one second sound outlet corresponds to at least one first sound outlet on the second surface of the non-screen side, wherein the second surface is different from the first surface, and the phase of the audio signal in each receiver is different. By using the above technical solution, the receiver can be installed on the non-screen side of the terminal without occupying the screen space of the terminal. At the same time, the directivity control of the sound wave radiation can be realized at the first sound outlet of the terminal, solving the call problem of the full-screen terminal.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic equipment, and in particular to a terminal, an audio signal processing method, an apparatus, a device and a storage medium. Background Art

[0002] With the popularization of mobile terminals and the rapid development of electronic technology, communication terminal equipment (such as mobile phones), mobile computers, tablet computers and other devices are becoming more and more important in people's lives. Vision is the most important channel for humans to obtain information. When interacting with people and machines on various terminals, intuitive operation is an important way to improve user experience. A larger screen-to-body ratio can bring a sense of technology and fashion to the product. The continuous pursuit of a larger screen-to-body ratio is a major trend in the development of communication terminal equipment.

[0003] A receiver is an electroacoustic device that converts audio signals into sound signals. It is widely used in communication terminal devices such as mobile phones, fixed phones and hearing aids. The receiver usually refers to a dynamic receiver. Its working principle is: the changing audio signal is fed into the voice coil, which is placed in the magnetic gap of a permanent magnet magnetic circuit. The current flows through the voice coil to generate a driving force, which drives the diaphragm to vibrate back and forth and radiate sound waves outward. At present, a sound hole is generally designed just above the diaphragm of the receiver.

[0004] Figure 1 FIG. 1 is a schematic diagram of the position of a receiver in a mobile phone in the prior art. Figure 1 As shown, the front side of the mobile phone shell 2 is provided with a front sound outlet 4 of the mobile phone, a receiver C1 and a sound outlet of the receiver (with Figure 1 The positions corresponding to the front sound holes 4 of the mobile phone are all arranged on the front of the mobile phone (i.e. the screen side), so part of the screen 3 position will be occupied, making it impossible for the mobile phone to truly achieve a full-screen effect; at the same time, when in use, the amount of sound leakage depends on the airtightness of the user's auricle and the mobile phone.

[0005] In order to pursue a larger screen-to-body ratio, the sound outlet of the receiver in some mobile phones is connected to the front of the screen through a sound duct to save screen space. For example, the sound outlet of the receiver is connected to the outlet of the earphone, or the receiver is connected to the corner of the screen through a longer pipe. However, this method has many limitations. First, because the receiver emits sound through a longer sound duct, there will be a large loss in the high-frequency part. Secondly, because the sound outlet is close to the edge of the screen, or on the side of the screen, the user's ear can not form a sealed cavity with the mobile phone during a call, which is different from the traditional mobile phone. Figure 1 In the solution shown, the sound leakage phenomenon is more serious, which reduces the privacy of calls and affects the user experience. Similarly, the size of the sound leakage depends on the airtightness of the user's ear and the mobile phone. Summary of the invention

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the problem in the prior art that the receiver outlet occupies the screen space of the mobile phone, thereby providing a receiver, an audio signal processing method, device, equipment and storage medium.

[0007] According to a first aspect, the present invention provides a terminal, comprising:

[0008] The terminal body comprises a screen side and a non-screen side, wherein at least two first sound outlet holes are provided on the non-screen side, and the at least two first sound outlet holes are located on different surfaces of the non-screen side;

[0009] At least two receivers, each of which is provided with a second sound outlet hole, and at least one of the second sound outlet holes corresponds to at least one first sound outlet hole on the first surface on the non-screen side, and at least one of the second sound outlet holes corresponds to at least one first sound outlet hole on the second surface on the non-screen side, wherein the second surface is different from the first surface, and the phase of the audio signal in each of the receivers is different.

[0010] In combination with the first aspect, in a first implementation of the first aspect, the non-screen side includes a top surface, and the top surface is the first surface.

[0011] In combination with the first aspect or the first embodiment of the first aspect, in a second embodiment of the first aspect, the non-screen side includes a back side opposite to the screen side, and the back side is the second side.

[0012] In combination with the first aspect, in a third implementation manner of the first aspect, the second sound outlet holes are arranged in a one-to-one correspondence with the first sound outlet holes.

[0013] In combination with the first aspect, in a fourth implementation of the first aspect, when the number of the receivers is two, the second sound hole on one receiver corresponds to the first sound hole on the top surface of the terminal, and the second sound hole on the other receiver corresponds to the first sound hole on the back surface of the terminal.

[0014] In combination with the first aspect, in a fifth implementation of the first aspect, it further includes a signal source and at least one delay component connected to the signal source;

[0015] When the number of the receivers is two, one of the receivers is connected to at least one of the delay components, and the other receiver is connected to the signal source or to the remaining delay components;

[0016] When the number of the receivers is greater than two, at least one of the receivers is connected to at least one of the delay components, and the remaining receivers except one connected to the signal source are all set corresponding to the remaining delay components or the remaining receivers are all set corresponding to the remaining delay components.

[0017] In combination with the fifth embodiment of the first aspect, in the sixth embodiment of the first aspect, it also includes a signal adjustment component, and the signal adjustment component is arranged between the signal source and the delay component.

[0018] In combination with the sixth embodiment of the first aspect, in the seventh embodiment of the first aspect, the signal conditioning component includes one or more of the following: a high-pass filter, a band-pass filter, and a low-pass filter.

[0019] In combination with the first aspect, in an eighth implementation of the first aspect, at least one of the second sound outlet holes is directly connected to the corresponding first sound outlet hole.

[0020] In combination with the first aspect or the eighth embodiment of the first aspect, in a ninth embodiment of the first aspect, at least one of the second sound outlet holes is connected to the corresponding first sound outlet hole by a sound conduit.

[0021] In combination with the first aspect, in a second implementation of the first aspect, the terminal includes a mobile phone or a speaker.

[0022] According to a second aspect, an embodiment of the present invention provides an audio signal processing method, which is applied to a terminal, wherein the terminal includes N receivers, where N≥2, and the audio signal processing method includes:

[0023] Obtaining an initial audio signal;

[0024] Using the initial audio signal, obtaining N receiver audio signals with different phases;

[0025] The receiver audio signal is sent to a corresponding receiver, wherein N receiver audio signals with different phases correspond one to one to the N receivers.

[0026] In combination with the second aspect, in a first implementation of the second aspect, using the initial audio signal to obtain N receiver audio signals with different phases includes:

[0027] Performing N parallel delay processes on the initial audio signal to obtain N receiver audio signals with different phases;

[0028] Alternatively, the initial audio signal is subjected to N-1 parallel delay processing, and the initial audio signal and the initial audio signal after the N-1 delay processing are used as N receiver audio signals with different phases.

[0029] In combination with the first implementation of the second aspect, in the second implementation of the second aspect, performing N or N-1 parallel delay processing on the initial audio information includes:

[0030] Obtain preset N or N-1 delayed signals;

[0031] The N or N-1 delayed signals are superimposed on the initial audio signal.

[0032] In combination with the second implementation of the second aspect, in the third implementation of the second aspect, the N or N-1 delayed signals are obtained by:

[0033] Obtaining N or N-1 distances between two of the receivers;

[0034] The N or N-1 delayed signals are obtained by using the distances between the N or N-1 two receivers and the propagation speed of sound waves in the air.

[0035] In combination with the second implementation of the second aspect, in the fourth implementation of the second aspect, before delaying the initial audio signal, the method further includes: dividing the initial audio signal into frequency bands;

[0036] The delay processing of the initial audio signal comprises: respectively delay processing the divided audio signals of each frequency band;

[0037] After the initial audio signal is delayed, the method further includes: superimposing the audio signals of each frequency band that have undergone delay processing.

[0038] According to a third aspect, an embodiment of the present invention provides an audio signal processing device, applied to a terminal, wherein the terminal includes N receivers, where N ≥ 2, including:

[0039] An acquisition module, used for acquiring an initial audio signal;

[0040] A processing module, used to obtain N receiver audio signals with different phases using the initial audio signal;

[0041] The sending module is used to send the receiver audio signal to the corresponding receiver, wherein the N receiver audio signals with different phases correspond one to one to the N receivers.

[0042] According to the fourth aspect, an embodiment of the present invention provides an audio signal processing device, including a memory and a processor, the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the audio signal processing method described in the second aspect of the present invention or any embodiment of the second aspect by executing the computer instructions.

[0043] According to the fifth aspect, an embodiment of the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable the computer to execute the audio signal processing method described in the second aspect of the present invention or any implementation of the second aspect.

[0044] The technical solution of the present invention has the following advantages:

[0045] 1. The terminal provided by the present invention comprises a terminal body and at least two receivers, wherein the terminal body comprises a screen side and a non-screen side, at least two first sound outlets are arranged on the non-screen side, and at least two of the first sound outlets are located on different surfaces of the non-screen side; each of the receivers is respectively provided with a second sound outlet, and at least one of the second sound outlets corresponds to at least one first sound outlet on the first surface of the non-screen side, and at least one of the second sound outlets corresponds to at least one first sound outlet on the second surface of the non-screen side, wherein the second surface is different from the first surface. By using the above technical solution, the receiver can be installed on the non-screen side of the terminal, and the receiver will not occupy the screen space of the terminal. At the same time, the different phases of the audio signals in at least two receivers can be used at the first sound outlet of the terminal to realize the directivity control of the sound wave radiation, and there is no sound leakage problem, which solves the call problem of the full-screen terminal. At the same time, the solution does not significantly increase the manufacturing difficulty of the terminal; and the electroacoustic conversion efficiency of the terminal in the low frequency band is not affected by the directivity, and can have a higher electroacoustic conversion efficiency.

[0046] 2. In the terminal (such as a mobile phone) provided by the present invention, when the number of the receivers is two, the second sound outlet hole on one of the receivers corresponds to the first sound outlet hole on the top surface of the terminal, and the second sound outlet hole on the other receiver corresponds to the first sound outlet hole on the back surface of the terminal, so that a cardioid directivity or a supercardioid directivity can be formed, and the cardioid or supercardioid directivity is directed toward the line connecting the two first sound outlet holes and toward the direction of the auricle, that is, the backward sound is directionally eliminated, and the energy is concentrated into the auricle.

[0047] 3. In the terminal provided by the present invention, it also includes a signal source and at least one delay component connected to the signal source; when the number of the receivers is two, one of the receivers is connected to one delay component, and the other receiver is connected to the signal source or to the remaining delay components; when the number of the receivers is greater than two, at least one receiver is connected to at least one delay component, and the remaining receivers except one connected to the signal source are all set corresponding to the remaining delay components or the remaining receivers are all set corresponding to the remaining delay components. That is to say, the delay component is used to adjust the phase of the signal in the two receivers, so that the directivity control of the sound wave radiation can be achieved at the first sound outlet of the terminal; at the same time, because the signal processing method is used to achieve the directivity control of at least two receivers, the directivity can be adjusted within a certain range to adapt to the influence of different mobile phone IDs and receiver arrangements; if combined with a position sensor, it can also automatically track the user's ear position for optimization.

[0048] 4. In the terminal provided by the present invention, when the second sound outlet hole on the receiver is directly connected to the first sound outlet hole on the terminal, the problem of large loss of the high frequency part caused by the use of a sound conduit for connection can be avoided.

[0049] 5. The audio signal processing method provided in the embodiment of the present invention can process the acquired initial audio signal to obtain N receiver audio signals with different phases, and send the N receiver audio signals to the corresponding receivers, so that the phase of the audio signal in each receiver of the terminal is different, thereby realizing the directivity control of sound wave radiation at the first sound outlet of the terminal by using the different phases of the audio signals in at least two receivers. At the same time, because the signal processing method is used to realize the directivity control of at least two receivers, the directivity can be adjusted within a certain range to adapt to the influence of different mobile phone IDs and receiver arrangements. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0051] Figure 1 A schematic diagram of the position of a receiver in a mobile phone in the prior art;

[0052] Figure 2 is a specific implementation of the terminal;

[0053] Figure 3 is another specific implementation of the terminal;

[0054] Figure 4 This is a schematic diagram of the terminal acoustic directivity;

[0055] Figure 5 A schematic diagram of a structure between a receiver and a signal source;

[0056] Figure 6 is another structural schematic diagram between a receiver and a signal source;

[0057] Figure 7 Schematic diagram of the flow of the audio signal processing method in Embodiment 2 of the present invention;

[0058] Figure 8 is a schematic diagram of the structure of an audio signal processing device in Embodiment 3 of the present invention;

[0059] Among them: 1. Receiver C; 2. Mobile phone case; 3. Screen; 4. Front sound hole of the mobile phone; 5. Receiver A; 6. Receiver B. DETAILED DESCRIPTION

[0060] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0061] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0062] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0064] Example 1

[0065] Embodiment 1 of the present invention provides a terminal, comprising a terminal body and at least two receivers, wherein the terminal body comprises a screen side and a non-screen side, at least two first sound outlet holes are provided on the non-screen side, and at least two of the first sound outlet holes are located on different surfaces of the non-screen side; each of the receivers is respectively provided with a second sound outlet hole, and at least one of the second sound outlet holes corresponds to at least one first sound outlet hole on the first surface of the non-screen side, and at least one of the second sound outlet holes corresponds to at least one first sound outlet hole on the second surface of the non-screen side, wherein the second surface is different from the first surface, and wherein the phase of the audio signal in each of the receivers is different.

[0066] As a possible implementation manner, the non-screen side includes a top surface and a back surface opposite to the screen side, the top surface is the first surface, and the back surface is the second surface.

[0067] As a possible implementation, the second sound outlet holes are arranged in one-to-one correspondence with the first sound outlet holes. At the same time, it can be understood that the receivers in the terminal do not have to be close together, but can be flexibly placed, and the distance between them can be adjusted.

[0068] The terminal provided by the present invention includes a terminal body and at least two receivers, wherein the terminal body includes a screen side and a non-screen side, at least two first sound outlets are provided on the non-screen side, and at least two of the first sound outlets are located on different surfaces of the non-screen side; each of the receivers is provided with a second sound outlet, and at least one of the second sound outlets corresponds to at least one first sound outlet on the first surface of the non-screen side, and at least one of the second sound outlets corresponds to at least one first sound outlet on the second surface of the non-screen side, wherein the second surface is different from the first surface. Using the above technical solution, the receiver can be installed on the non-screen side of the terminal, and the receiver will not occupy the screen space of the terminal. At the same time, the different phases of the signals in at least two receivers can be used at the first sound outlet of the terminal to achieve the directivity control of the sound wave radiation, and there is no sound leakage problem, which solves the call problem of the full-screen terminal. At the same time, the solution does not significantly increase the difficulty of manufacturing the terminal; and the electroacoustic conversion efficiency of the terminal in the low frequency band is not affected by the directivity, and can have a higher electroacoustic conversion efficiency.

[0069] As a possible implementation, the number of receivers in the terminal is two. For example, the terminal includes a terminal body and two receivers, the terminal body includes a screen side and a non-screen side, a first sound outlet is provided on the top surface and the back surface of the terminal respectively (the top surface and the back surface of the terminal are the non-screen side of the terminal), and each receiver is provided with a second sound outlet, wherein the second sound outlet on one receiver corresponds to the first sound outlet on the top surface of the terminal, and the second sound outlet on the other receiver corresponds to the first sound outlet on the back surface of the terminal.

[0070] Figure 2 is a specific implementation of the terminal, Figure 3 Another specific implementation of the terminal is as follows: Figure 2 and Figure 3 As shown, the terminal includes a terminal body and two receivers, namely, receiver A5 and receiver B6. A sound outlet hole A is provided on the top surface of the terminal, and a sound outlet hole B is provided on the back surface of the terminal. The sound outlet hole on the receiver A5 is arranged corresponding to the sound outlet hole A on the top surface of the terminal, and the sound outlet hole on the receiver B6 is arranged corresponding to the sound outlet hole B on the top surface of the terminal.

[0071] As shown in Figure 4, when the second sound outlet hole on one receiver corresponds to the first sound outlet hole on the top surface of the terminal (such as a mobile phone), and the second sound outlet hole on the other receiver corresponds to the first sound outlet hole on the back surface of the terminal, a cardioid directivity or a supercardioid directivity can be formed, and the cardioid or supercardioid directivity is directed toward the line connecting the two sound outlet areas and toward the direction of the auricle, that is, the backward sound is directionally eliminated, and the energy is concentrated into the auricle.

[0072] The embodiment of the present invention further provides a schematic diagram of the structure between a receiver and a signal source in a terminal.

[0073] As a possible implementation, it further includes a signal source and at least one delay component connected to the signal source. When the number of the receivers is two, one of the receivers is connected to at least one of the delay components, and the other receiver is connected to the signal source or to the remaining delay components. When the number of the receivers is greater than two, at least one of the receivers is connected to at least one of the delay components, and the remaining receivers, except one connected to the signal source, are all set corresponding to the remaining delay components or the remaining receivers are all set corresponding to the remaining delay components.

[0074] In the embodiment of the present invention, the delay component may select one or more phase adjustment elements, and the phase adjustment element is used to adjust the phase of the signal source. The signal source is a downlink voice signal decoded from the baseband, which is a conventional signal source in a mobile phone.

[0075] As a further implementation, the terminal further includes a signal conversion component, the signal conversion component is arranged between the receiver connected to the signal source and the signal source, and / or, the signal conversion component is arranged between the receiver connected to the delay component and the delay component. Specifically, the signal conversion component includes one or two of the following: a D / A converter, a power amplifier (abbreviated as power amplifier). Figure 5 As shown, D / A converter A and power amplifier A are arranged between the delay component and receiver A, and D / A converter B and power amplifier B are arranged between the signal source and receiver B.

[0076] As a further implementation, the terminal further includes a signal conditioning component, and the signal conditioning component is disposed between the signal source and the delay component. Specifically, the signal conditioning component includes one or more of the following: a high-pass filter, a band-pass filter, and a low-pass filter. Figure 6 As shown, a high-pass filter is provided between the signal source and the phase adjustment element A1, a band-pass filter is provided between the signal source and the phase adjustment element A2, and a low-pass filter is provided between the signal source and the phase adjustment element A3. It should be noted that Figure 6 This is just a specific example. In fact, the delay component may include only one or two of the phase adjustment element A1, the phase adjustment element A2 and the phase adjustment element A3, and the corresponding filter may be one or two, and the filter may be connected to any phase adjustment element, such as Figure 6 As shown in FIG. 1 , a high-pass filter is connected to the phase adjustment element A1, or a low-pass filter is connected to the phase adjustment element A1. In addition, for the receiver B, Figure 6 As shown, a filter is provided in front of the phase adjustment element, but a filter may not be provided in front of the phase adjustment element.

[0077] Understandable, such as Figure 6 As shown, a high-pass filter is provided between the signal source and the phase adjustment element A1, a band-pass filter is provided between the signal source and the phase adjustment element A2, and a low-pass filter is provided between the signal source and the phase adjustment element A3; the essence of this is to adjust the directivity by frequency band, because the directivity widths of different frequency bands will be different. Figure 6 In the process, the signal source first passes through two groups of filters, each group is divided into several frequency bands, and then the delay / phase and gain of each frequency band of each group are adjusted respectively, and finally the signals are superimposed and fed to the receivers through the power amplifier. In this way, the directivity of the sub-frequency bands can be adjusted within a certain range to adapt to the influence of different mobile phone IDs and receiver layouts; if combined with a position sensor, it can also automatically track the position of the user's ear for optimization.

[0078] As a further implementation, the terminal further includes an amplitude adjustment element to adjust the amplitude of the audio signal. The present invention does not limit the position of the amplitude adjustment element, which may be located in front of the phase adjustment element or behind the phase adjustment element.

[0079] In the terminal provided in the embodiment of the present invention, the second sound outlet hole on the receiver and the first sound outlet hole on the terminal can be connected directly or by using a sound conduit. When the second sound outlet hole on the receiver and the first sound outlet hole on the terminal are directly connected, the problem of large loss in the high-frequency part caused by using a sound conduit for connection can be avoided.

[0080] Example 2

[0081] Embodiment 2 of the present invention provides an audio signal processing method. The audio signal processing method provided by Embodiment 2 of the present invention is applied to the terminal of Embodiment 1 of the present invention. Figure 7 FIG. 2 is a flow chart of an audio signal processing method in Embodiment 2 of the present invention. Figure 7 As shown, the audio signal processing method of embodiment 2 of the present invention includes the following steps:

[0082] S701: Acquire an initial audio signal.

[0083] In the embodiment of the present invention, an initial audio signal is obtained from a signal source, wherein the signal source is a downlink voice signal obtained by baseband decoding, which is a conventional signal source in a mobile phone.

[0084] S702: Using the initial audio signal, obtain N receiver audio signals with different phases.

[0085] As a specific implementation manner, the use of the initial audio signal to obtain N receiver audio signals with different phases can adopt the following technical solution: the initial audio signal is subjected to N parallel delay processing to obtain N receiver audio signals with different phases; or, the initial audio signal is subjected to N-1 parallel delay processing, and the initial audio signal and the initial audio signal after N-1 delay processing are used as N receiver audio signals with different phases.

[0086] Specifically, the following technical solution may be used to perform N or N-1 parallel delay processing on the initial audio information: obtaining preset N or N-1 delay signals; and superimposing the N or N-1 delay signals on the initial audio signal.

[0087] More specifically, the N or N-1 delayed signals are obtained by: obtaining N or N-1 distances between two of the receivers; and obtaining the N or N-1 delayed signals using the N or N-1 distances between two of the receivers and the propagation speed of sound waves in the air.

[0088] For example, assuming that the straight-line distance between any two first sound outlets on the non-screen side of the terminal is l, a delay τ relative to the receiver B can be superimposed on the signal fed to the receiver A, so that τ=l / c0, where c0 represents the propagation speed of sound in the air. This can generate directivity toward the direction of the human ear.

[0089] As a further implementation, before delaying the initial audio signal, the initial audio signal is further divided into frequency bands; the delaying the initial audio signal includes: delaying the divided audio signals in each frequency band respectively; after delaying the initial audio signal, the delaying process also includes: superimposing the audio signals in each frequency band after delaying. In this way, the directivity of the frequency bands can be adjusted within a certain range to adapt to the influence of different mobile phone IDs and receiver arrangements; if combined with a position sensor, the user's ear position can also be automatically tracked for optimization.

[0090] S703: Send the receiver audio signal to the corresponding receiver, wherein the N receiver audio signals with different phases correspond one to one to the N receivers.

[0091] The audio signal processing method provided in Embodiment 2 of the present invention can process the acquired initial audio signal to obtain N receiver audio signals with different phases, and send the N receiver audio signals to the corresponding receivers, so that the phase of the audio signal in each receiver of the terminal is different, thereby realizing the directivity control of sound wave radiation by utilizing the different phases of the audio signals in at least two receivers at the first sound outlet of the terminal. At the same time, because the directivity control of at least two receivers is realized by using the signal processing method, the directivity can be adjusted within a certain range to adapt to the influence of different mobile phone IDs and receiver arrangements.

[0092] Example 3

[0093] Embodiment 3 of the present invention provides an audio signal processing device. Embodiment 3 of the present invention provides an audio signal processing device which is applied to the terminal of Embodiment 1 of the present invention. Figure 8 FIG. 3 is a schematic diagram of the structure of an audio signal processing device in Embodiment 3 of the present invention. Figure 8 As shown, the audio signal processing device of embodiment 3 of the present invention includes an acquisition module 80 , a processing module 82 and a sending module 84 .

[0094] Specifically, the acquisition module 80 is used to acquire an audio signal.

[0095] The processing module 82 is used to process the audio signal to obtain N audio signals with different phases.

[0096] The sending module 84 sends the processed audio signal to the corresponding receiver, wherein the N audio signals with different phases correspond one to one to the N receivers.

[0097] The specific details of the above-mentioned audio signal processing device can be understood by referring to the corresponding relevant descriptions and effects of Embodiment 1 of the present invention, and will not be repeated here.

[0098] Example 4

[0099] An embodiment of the present invention further provides an audio signal processing device, which may include a processor and a memory, wherein the processor and the memory may be connected via a bus or in other ways.

[0100] The processor may be a central processing unit (CPU). The processor may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or a combination of the above chips.

[0101] The memory, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs, non-transitory computer executable programs and modules, such as program instructions / modules corresponding to the audio signal processing method in the embodiment of the present invention (for example, Figure 8 The processor executes various functional applications and data processing of the processor by running the non-transitory software programs, instructions and modules stored in the memory, that is, the audio signal processing method in the above method embodiment is implemented.

[0102] The memory may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function; the data storage area may store data created by the processor, etc. In addition, the memory may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some embodiments, the memory may optionally include a memory remotely arranged relative to the processor, and these remote memories may be connected to the processor via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0103] The one or more modules are stored in the memory, and when executed by the processor, perform the audio signal processing method shown in Embodiment 1 of the present invention.

[0104] The specific details of the above-mentioned audio signal processing device can be understood by referring to the corresponding relevant descriptions and effects of Embodiment 1 of the present invention, and will not be repeated here.

[0105] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program, and the program can be stored in a computer-readable storage medium, and when the program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, the storage medium can be a disk, an optical disk, a read-only memory (ROM), a random access memory (RAM), a flash memory, a hard disk drive (HDD) or a solid-state drive (SSD), etc.; the storage medium can also include a combination of the above-mentioned types of memory.

[0106] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A terminal, characterized in that: include: The terminal body comprises a screen side and a non-screen side, wherein at least two first sound outlet holes are provided on the non-screen side, and the at least two first sound outlet holes are located on different surfaces of the non-screen side; at least two receivers, each of which is provided with a second sound outlet hole, and at least one of the second sound outlet holes corresponds to at least one first sound outlet hole on the first surface of the non-screen side, and at least one of the second sound outlet holes corresponds to at least one first sound outlet hole on the second surface of the non-screen side, wherein the second surface is different from the first surface, wherein the phase of the audio signal in each of the receivers is different, and the non-screen side includes a top surface, and the top surface is the first surface; A signal source and at least one delay component connected to the signal source; When the number of the receivers is two, one of the receivers is connected to at least one of the delay components, and the other receiver is connected to the signal source or to the remaining delay components; When the number of the receivers is greater than two, at least one of the receivers is connected to at least one of the delay components, and the remaining receivers except one connected to the signal source are all set corresponding to the remaining delay components or the remaining receivers are all set corresponding to the remaining delay components.

2. The terminal according to claim 1, characterized in that The non-screen side includes a back surface opposite to the screen side, and the back surface is the second surface.

3. The terminal according to claim 1, characterized in that: The second sound outlet holes are arranged in one-to-one correspondence with the first sound outlet holes.

4. The terminal according to claim 1, characterized in that: When there are two receivers, the second sound outlet hole on one receiver corresponds to the first sound outlet hole on the top surface of the terminal, and the second sound outlet hole on the other receiver corresponds to the first sound outlet hole on the back surface of the terminal.

5. The terminal according to claim 1, characterized in that: It also includes a signal conditioning component, which is arranged between the signal source and the delay component.

6. The terminal according to claim 5, characterized in that: The signal conditioning component includes one or more of the following: a high-pass filter, a band-pass filter, and a low-pass filter.

7. The terminal according to claim 1, characterized in that: At least one of the second sound outlet holes is directly connected to the corresponding first sound outlet hole.

8. The terminal according to claim 1 or 7, characterized in that: At least one of the second sound outlet holes is connected to the corresponding first sound outlet hole via a sound conduit.

9. The terminal according to claim 1, characterized in that: The terminal includes a mobile phone or a speaker.

10. An audio signal processing method, applied to a terminal, the terminal comprising N receivers, wherein N ≥ 2, characterized in that: include: Obtaining an initial audio signal; Using the initial audio signal, obtaining N receiver audio signals with different phases; Sending the N receiver audio signals to corresponding receivers, wherein the N receiver audio signals with different phases correspond one to one to the N receivers; The method of obtaining N receiver audio signals with different phases by using the initial audio signal comprises: Performing N parallel delay processes on the initial audio signal to obtain N receiver audio signals with different phases; Alternatively, the initial audio signal is subjected to N-1 parallel delay processing, and the initial audio signal and the initial audio signal after the N-1 delay processing are used as N receiver audio signals with different phases.

11. The audio signal processing method according to claim 10, characterized in that: The initial audio signal is subjected to N or N-1 parallel delay processings, including: Obtain preset N or N-1 delayed signals; The N or N-1 delayed signals are superimposed on the initial audio signal.

12. The audio signal processing method according to claim 11, characterized in that: The N or N-1 delayed signals are obtained in the following manner: Obtaining N or N-1 distances between two of the receivers; The N or N-1 delayed signals are obtained by using the distances between the N or N-1 two receivers and the propagation speed of sound waves in the air.

13. The audio signal processing method according to claim 11, characterized in that: Before delaying the initial audio signal, the method further includes: dividing the initial audio signal into frequency bands; The delay processing of the initial audio signal comprises: respectively delay processing the divided audio signals of each frequency band; After the initial audio signal is delayed, the method further includes: superimposing the audio signals of each frequency band that have undergone delay processing.

14. An audio signal processing device, applied to a terminal, the terminal comprising N receivers, wherein N ≥ 2, characterized in that: include: An acquisition module, used for acquiring an initial audio signal; A processing module, used to obtain N receiver audio signals with different phases using the initial audio signal; The sending module is used to send the receiver audio signal to the corresponding receiver, wherein the N receiver audio signals with different phases correspond one to one to the N receivers.

15. An audio signal processing device, characterized in that: include: A memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the audio signal processing method according to any one of claims 10 to 13 by executing the computer instructions.

16. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable the computer to execute the audio signal processing method according to any one of claims 10 to 13.

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