An audio processing method, apparatus, electronic device, and vehicle

Abstract

The application relates to an audio processing method and device, electronic equipment and a vehicle. The method comprises the following steps: acquiring a first volume amplitude and a second volume amplitude; substituting the first volume amplitude and a first sound phase coefficient into a first formula to obtain a first calculation result; the first calculation result is positively correlated with the first volume amplitude and the first sound phase coefficient; substituting the second volume amplitude and the first sound phase coefficient into a second formula to obtain a second calculation result; the second calculation result is positively correlated with the second volume amplitude and negatively correlated with the first sound phase coefficient; summing the first calculation result and the second calculation result to obtain the volume amplitude of a first center sound audio signal corresponding to a target sampling point; and subtracting the first calculation result and the second calculation result to obtain the volume amplitude of a first surround sound audio signal corresponding to the target sampling point. The above method can solve the problem of complex audio signal processing calculation.

Description

Technical Field

[0001] This application relates to the field of data processing technology, and in particular to an audio processing method, apparatus, electronic device, and vehicle. Background Technology

[0002] With the development of technology, vehicles have become an indispensable tool for people's lives, work and travel. While driving, people usually listen to audio information to relieve driving fatigue.

[0003] Traditional sound separation methods are generally based on time-domain filters. Common time-domain filters include: pass Fast Fourier Transform (FFT) filters, inverse Fast Fourier Transform (IFFT) filters, and quadrature mirror filters (QMF). However, existing sound separation methods involve a significant amount of digital signal processing (DSP), resulting in high computational complexity. Summary of the Invention

[0004] This application provides an audio processing method, apparatus, electronic device, and vehicle for reducing the computational complexity of the sound separation process.

[0005] In a first aspect, embodiments of this application provide an audio processing method, the method comprising:

[0006] Obtain a first volume amplitude and a second volume amplitude, wherein the first volume amplitude and the second volume amplitude are respectively the volume amplitude of the audio signal of the first channel and the volume amplitude of the audio signal of the second channel corresponding to the target sampling point;

[0007] Substitute the first volume amplitude and the first phase coefficient into the first formula to obtain the first calculation result; the first calculation result is positively correlated with both the first volume amplitude and the first phase coefficient;

[0008] Substitute the second volume amplitude and the first phase coefficient into the second formula to obtain the second calculation result; the second calculation result is positively correlated with the second volume amplitude and negatively correlated with the first phase coefficient;

[0009] The first calculation result and the second calculation result are summed to obtain the volume amplitude of the first center sound audio signal corresponding to the target sampling point;

[0010] The difference between the first calculation result and the second calculation result is used to obtain the volume amplitude of the first surround sound audio signal corresponding to the target sampling point.

[0011] In some embodiments, substituting the first volume amplitude and the first phase coefficient into the first formula to obtain the first calculation result includes:

[0012] Calculate the product of the first volume amplitude and the first acoustic phase coefficient to obtain the first calculation result;

[0013] The step of substituting the second volume amplitude and the first acoustic phase coefficient into the second formula to obtain the second calculation result includes:

[0014] Calculate the product of the second volume amplitude and the first difference to obtain the second calculation result, where the first difference is the difference between the first fixed value and the first acoustic phase coefficient.

[0015] In some embodiments, substituting the first volume amplitude and the first phase coefficient into the first formula to obtain the first calculation result includes:

[0016] Calculate the product of the first volume amplitude and the arithmetic square root of the first phase coefficient to obtain the first calculation result;

[0017] The step of substituting the second volume amplitude and the first acoustic phase coefficient into the second formula to obtain the second calculation result includes:

[0018] Calculate the product of the arithmetic square root of the second volume amplitude and the second difference to obtain the second calculation result, where the second difference is the difference between the second constant value and the first acoustic phase coefficient.

[0019] In some embodiments, substituting the first volume amplitude and the first phase coefficient into the first formula to obtain the first calculation result includes:

[0020] Calculate the product of the first volume amplitude and the first sine value to obtain the first calculation result, wherein the first sine value is the sine value of the product of the third constant value and the first acoustic phase coefficient;

[0021] The step of substituting the second volume amplitude and the first acoustic phase coefficient into the second formula to obtain the second calculation result includes:

[0022] Calculate the product of the second volume amplitude and the second sine value to obtain the second calculation result. The second sine value is the sine of the product of the third constant value and the third difference value. The third difference value is the difference between the fourth constant value and the first acoustic phase coefficient.

[0023] In some embodiments, the method further includes:

[0024] Calculate the product of the absolute value of the first operation result and the absolute value of the second operation result to obtain the updated parameters;

[0025] Determine whether the update parameter is greater than zero;

[0026] If so, the absolute value of the first calculation result, the absolute value of the second calculation result, the update parameter, and the first acoustic phase coefficient are substituted into the third formula to obtain the third calculation result;

[0027] The first acoustic phase coefficient is updated to the third calculation result.

[0028] In some embodiments, substituting the absolute value of the first calculation result, the absolute value of the second calculation result, the update parameter, and the first acoustic phase coefficient into the third formula to obtain the third calculation result includes:

[0029] Calculate the difference between the fourth fixed value and the updated parameter to obtain the first calculated value;

[0030] Calculate the ratio of the absolute value of the first calculation result to the second calculation value to obtain a third calculation value; the second calculation value is the sum of the absolute values ​​of the first calculation result and the second calculation result.

[0031] Calculate the product of the updated parameter and the first acoustic phase coefficient to obtain the fourth calculated value;

[0032] Calculate the product of the first calculated value and the third calculated value to obtain the fifth calculated value;

[0033] The fourth calculated value and the fifth calculated value are summed to obtain the third operation result.

[0034] In some embodiments, after summing the first calculation result and the second calculation result to obtain the volume amplitude of the first center sound audio signal corresponding to the target sampling point, the method further includes:

[0035] Substitute the first volume amplitude and the second phase coefficient into the first formula to obtain the fourth calculation result; the fourth calculation result is positively correlated with both the first volume amplitude and the second phase coefficient.

[0036] Substitute the second volume amplitude and the second phase coefficient into the second formula to obtain the fifth calculation result; the fifth calculation result is positively correlated with the second volume amplitude and negatively correlated with the second phase coefficient;

[0037] The fourth and fifth operation results are summed to obtain the volume amplitude of the second center sound audio signal corresponding to the target sampling point;

[0038] The difference between the fourth and fifth operation results is calculated to obtain the volume amplitude of the second surround sound audio signal corresponding to the target sampling point.

[0039] In some embodiments, after summing the first calculation result and the second calculation result to obtain the volume amplitude of the center sound audio signal corresponding to the target sampling point, the method further includes:

[0040] Substitute the second volume amplitude and the third phase coefficient into the first formula to obtain the sixth calculation result; the sixth calculation result is positively correlated with both the first volume amplitude and the third phase coefficient;

[0041] Substitute the second volume amplitude and the third phase coefficient into the second formula to obtain the seventh calculation result; the seventh calculation result is positively correlated with the second volume amplitude and negatively correlated with the third phase coefficient;

[0042] The sixth and seventh operation results are summed to obtain the volume amplitude of the third center sound audio signal corresponding to the target sampling point;

[0043] The difference between the sixth and seventh operation results is used to obtain the volume amplitude of the third surround sound audio signal corresponding to the target sampling point.

[0044] In some embodiments, the method further includes:

[0045] The volume amplitude of the surround sound audio signal corresponding to the target sampling point is delayed by a feedback delay network to obtain the volume amplitude of at least two delayed surround sound audio signals.

[0046] Secondly, embodiments of this application provide an audio processing apparatus, including:

[0047] The acquisition module is used to acquire a first volume amplitude and a second volume amplitude, wherein the first volume amplitude and the second volume amplitude are the volume amplitude of the audio signal of the first channel and the audio signal of the second channel corresponding to the target sampling point, respectively.

[0048] The processing module is configured to substitute the first volume amplitude and the first phase coefficient into a first formula to obtain a first calculation result, and to substitute the second volume amplitude and the first phase coefficient into a second formula to obtain a second calculation result; the first calculation result is positively correlated with both the first volume amplitude and the first phase coefficient; the second calculation result is negatively correlated with the first phase coefficient;

[0049] The center sound acquisition module is used to sum the first calculation result and the second calculation result to obtain the volume amplitude of the first center sound audio signal corresponding to the target sampling point;

[0050] The surround sound acquisition module is used to calculate the difference between the first calculation result and the second calculation result to obtain the volume amplitude of the first surround sound audio signal corresponding to the target sampling point.

[0051] In some embodiments, the processing module is specifically configured to calculate the product of the first volume amplitude and the first phase coefficient to obtain the first calculation result; calculate the product of the second volume amplitude and the first difference to obtain the second calculation result, wherein the first difference is the difference between the first fixed value and the first phase coefficient.

[0052] In some embodiments, the processing module is specifically configured to calculate the product of the first volume amplitude and the arithmetic square root of the first phase coefficient to obtain the first calculation result; calculate the product of the second volume amplitude and the arithmetic square root of the first difference to obtain the second calculation result, wherein the second difference is the difference between the second constant value and the first phase coefficient.

[0053] In some embodiments, the processing module is specifically configured to calculate the product of the first volume amplitude and the first sine value to obtain a first calculation result, wherein the first sine value is the sine of the product of the third constant value and the first phase coefficient; calculate the product of the second volume amplitude and the second sine value to obtain a second calculation result, wherein the second sine value is the sine of the product of the third constant value and the third difference value, wherein the third difference value is the difference between the fourth constant value and the first phase coefficient.

[0054] In some embodiments, the processing module is further configured to calculate the product of the absolute value of the first operation result and the absolute value of the second operation result to obtain the updated parameters;

[0055] Determine whether the update parameter is greater than zero;

[0056] If so, the absolute value of the first calculation result, the absolute value of the second calculation result, the update parameter, and the first acoustic phase coefficient are substituted into the third formula to obtain the third calculation result;

[0057] The first acoustic phase coefficient is updated to the third calculation result.

[0058] In some embodiments, the processing module is further configured to calculate the difference between the fourth fixed value and the updated parameter to obtain a first calculated value;

[0059] Calculate the ratio of the absolute value of the first calculation result to the second calculation value to obtain a third calculation value; the second calculation value is the sum of the absolute values ​​of the first calculation result and the second calculation result.

[0060] Calculate the product of the updated parameter and the first acoustic phase coefficient to obtain the fourth calculated value;

[0061] Calculate the product of the first calculated value and the third calculated value to obtain the fifth calculated value;

[0062] The fourth calculated value and the fifth calculated value are summed to obtain the third operation result.

[0063] In some embodiments, the center sound acquisition module is specifically used to substitute the first volume amplitude and the second phase coefficient into the first formula to obtain a fourth calculation result, and to substitute the second volume amplitude and the second phase coefficient into the second formula to obtain a fifth calculation result;

[0064] The fourth and fifth operation results are summed to obtain the volume amplitude of the second center sound audio signal corresponding to the target sampling point.

[0065] In some embodiments, the center sound acquisition module is specifically used to substitute the second volume amplitude and the third phase coefficient into the first formula to obtain a sixth calculation result, and to substitute the second volume amplitude and the third phase coefficient into the second formula to obtain a seventh calculation result;

[0066] The sixth and seventh operation results are summed to obtain the volume amplitude of the third center sound audio signal corresponding to the target sampling point;

[0067] In some embodiments, the surround sound acquisition module is specifically used to substitute the first volume amplitude and the second phase coefficient into the first formula to obtain a fourth calculation result, and to substitute the second volume amplitude and the second phase coefficient into the second formula to obtain a fifth calculation result;

[0068] The difference between the fourth and fifth operation results is calculated to obtain the volume amplitude of the second surround sound audio signal corresponding to the target sampling point.

[0069] In some embodiments, the surround sound acquisition module is specifically used to substitute the second volume amplitude and the third phase coefficient into the first formula to obtain a sixth calculation result, and to substitute the second volume amplitude and the third phase coefficient into the second formula to obtain a seventh calculation result;

[0070] The difference between the sixth and seventh operation results is used to obtain the volume amplitude of the third surround sound audio signal corresponding to the target sampling point.

[0071] Thirdly, embodiments of this application provide an electronic device, including: a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the audio processing method described in any of the above claims.

[0072] Fourthly, embodiments of this application provide a vehicle, including:

[0073] The electronic equipment described in the third aspect;

[0074] The housing and the driver's cab within the housing, wherein the electronic equipment is located in the driver's cab.

[0075] The audio processing method provided in this application first obtains the first volume amplitude of the audio signal of the first channel corresponding to the target sampling point and the second volume amplitude of the audio signal of the second channel corresponding to the target sampling point. Then, it substitutes the first volume amplitude and the first phase coefficient into a first formula to obtain a first calculation result that is positively correlated with both the first volume amplitude and the first phase coefficient. Next, it substitutes the second volume amplitude and the first phase coefficient into a second formula to obtain a second calculation result that is positively correlated with the second volume amplitude and negatively correlated with the first phase coefficient. Finally, it sums the first calculation result and the second calculation result to obtain the volume amplitude of the first center sound audio signal corresponding to the target sampling point, and subtracts the first calculation result and the second calculation result to obtain the volume amplitude of the first surround sound audio signal corresponding to the target sampling point. Since the audio processing method provided in this application can obtain the volume amplitude of the center sound audio signal and the volume amplitude of the surround sound audio signal without using a time-domain filter, thereby achieving sound separation, this application can reduce the computational complexity of the sound separation process. Attached Figure Description

[0076] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0077] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0078] Figure 1This is a schematic flowchart of the audio processing method provided in the embodiments of this application;

[0079] Figure 2 Is it like this? Figure 1 A schematic flowchart of the first embodiment of the audio processing method shown;

[0080] Figure 3 Is it like this? Figure 1 A detailed flowchart of the second embodiment of the audio processing method is shown below;

[0081] Figure 4 Is it like this? Figure 1 A detailed flowchart of the third embodiment of the audio processing method is shown below;

[0082] Figure 5 This is a schematic diagram of the process of updating the first acoustic phase coefficient using the updated parameters in the audio processing method provided in this application embodiment;

[0083] Figure 6 This is a schematic flowchart of the fourth embodiment of the audio processing method provided in this application;

[0084] Figure 7 Is it like this? Figure 5 The diagram shows the system architecture of the audio processing method.

[0085] Figure 8 yes Figure 3 The diagram shows a matrix router display of the audio signal input and output of the audio processing method shown.

[0086] Figure 9 yes Figure 2 The diagram illustrates how the audio processing method processes the output signal using a filter.

[0087] Figure 10 This is a schematic diagram of the structure of the audio processing device provided in the embodiments of this application;

[0088] Figure 11 This is a schematic diagram of the structure of the electronic device provided in the embodiments of this application. Detailed Implementation

[0089] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0090] In the following description, specific details such as particular system architectures, interfaces, and technologies are presented for illustrative purposes rather than for limiting purposes, in order to provide a thorough understanding of this application.

[0091] The terms "first," "second," and "third" in this application are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the stated features. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movement of components in a specific posture (as shown in the figures). If the specific posture changes, the directional indications also change accordingly. The terms "comprising" and "having," and any variations thereof, in the embodiments of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or components inherent to these processes, methods, products, or devices.

[0092] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0093] Currently, with economic development, vehicles have become an indispensable tool for people's lives, work, and travel. While driving, people often listen to audio information to alleviate driving fatigue. Existing audio processing methods involve numerous digital signal calculation steps and delays caused by the conversion between time-domain and frequency-domain signals.

[0094] The present application will now be described in detail with reference to the accompanying drawings and embodiments.

[0095] Please see Figures 1-4 , Figure 1 This is a schematic flowchart of the audio processing method provided in the embodiments of this application. Figure 2 Is it like this? Figure 1 The diagram shown is a detailed flowchart of the first embodiment of the audio processing method. Figure 3 Is it like this? Figure 1The diagram shows a detailed flow chart of the second embodiment of the audio processing method. Figure 4 Is it like this? Figure 1 The diagram shows a detailed flow chart of the third embodiment of the audio processing method.

[0096] This application provides an audio processing method, referring to... Figure 1 As shown, the audio processing method includes the following steps:

[0097] S101, Obtain the first volume amplitude and the second volume amplitude.

[0098] Wherein, the first volume amplitude and the second volume amplitude are the volume amplitudes of the first channel audio signal and the second channel audio signal corresponding to the target sampling point, respectively.

[0099] Specifically, the audio signal is the audio played by the electronic device 200, such as a speaker, and may include audio data for human enjoyment, such as opera, songs, and various instrumental performances. For example, the electronic device 200 includes a first channel and a second channel; for example, the electronic device 200 may include a first channel, a second channel, and a third channel.

[0100] In some embodiments, the first channel is the left channel and the second channel is the right channel.

[0101] S102. Substitute the first volume amplitude and the first acoustic phase coefficient into the first formula to obtain the first calculation result.

[0102] The first calculation result is positively correlated with both the first volume amplitude and the first acoustic phase coefficient.

[0103] The first phase coefficient is the quality factor of the phase noise at the target sampling point. Updating the first phase coefficient to minimize its impact on the system can reduce the noise effect. The updated phase coefficient is then used in the audio processing of the next sampling point.

[0104] Positive correlation means that two variables change in the same direction; when one variable changes from large to small or from small to large, the other variable also changes from large to small or from small to large. In other words, if the amplitude of the first volume increases, the first calculation result also increases, or if the amplitude of the first volume decreases, the first calculation result also decreases; if the first phase coefficient increases, the first calculation result also increases, or if the first phase coefficient decreases, the first calculation result also decreases.

[0105] S103. Substitute the second volume amplitude and the first phase coefficient into the second formula to obtain the second calculation result.

[0106] Among them, the second calculation result is positively correlated with the second volume amplitude, and the second calculation result is negatively correlated with the first acoustic phase coefficient.

[0107] Negative correlation refers to two variables changing in opposite directions; when one variable changes from large to small or from small to large, the other variable changes from small to large or from large to small. In other words, if the amplitude of the second volume increases, the result of the second calculation also increases, or if the amplitude of the second volume decreases, the result of the second calculation also decreases; if the first phase coefficient increases, the result of the second calculation decreases, or if the first phase coefficient decreases, the result of the second calculation increases.

[0108] S104. Sum the first operation result and the second operation result to obtain the volume amplitude of the first center sound audio signal corresponding to the target sampling point.

[0109] That is, the result of the first operation is represented as The result of the second operation is expressed as The volume amplitude of the first central acoustic signal is expressed as: Then we have: + .

[0110] S105. Calculate the difference between the first calculation result and the second calculation result to obtain the volume amplitude of the first surround sound audio signal corresponding to the target sampling point.

[0111] That is, the result of the first operation is represented as The result of the second operation is expressed as The volume amplitude of the first central acoustic signal represents Then we have: .

[0112] The audio processing method provided in this application first obtains the first volume amplitude of the audio signal of the first channel corresponding to the target sampling point and the second volume amplitude of the audio signal of the second channel corresponding to the target sampling point. Then, it substitutes the first volume amplitude and the first phase coefficient into a first formula to obtain a first calculation result that is positively correlated with both the first volume amplitude and the first phase coefficient. Next, it substitutes the second volume amplitude and the first phase coefficient into a second formula to obtain a second calculation result that is positively correlated with the second volume amplitude and negatively correlated with the first phase coefficient. Finally, it sums the first calculation result and the second calculation result to obtain the volume amplitude of the first center sound audio signal corresponding to the target sampling point, and calculates the difference between the first calculation result and the second calculation result to obtain the volume amplitude of the first surround sound audio signal corresponding to the target sampling point. Since the audio processing method provided in this application can obtain the volume amplitude of the center sound audio signal and the volume amplitude of the surround sound audio signal without using a time-domain filter, thereby achieving sound separation, this application can reduce the computational complexity of the sound separation process.

[0113] As an extension and refinement of the above embodiments, this application provides a first embodiment of an audio processing method, referring to... Figure 2 As shown, the audio processing method in this embodiment includes the following steps:

[0114] S201, Obtain the first volume amplitude and the second volume amplitude.

[0115] S202. Calculate the product of the first volume amplitude and the first acoustic phase coefficient to obtain the first calculation result.

[0116] That is, the first volume amplitude is expressed as The first acoustic phase coefficient is expressed as The first operation result is represented as Then we have:

[0117]

[0118] S203. Calculate the product of the second volume amplitude and the first difference to obtain the second calculation result. The first difference is the difference between the first fixed value and the first acoustic phase coefficient.

[0119] That is, the second volume amplitude is expressed as The first acoustic phase coefficient is expressed as The result of the second operation is expressed as Then we have:

[0120]

[0121] For example, the first value can be 1.

[0122] S204. Sum the first calculation result and the second calculation result to obtain the volume amplitude of the first center sound audio signal corresponding to the target sampling point;

[0123] S205. Calculate the difference between the first calculation result and the second calculation result to obtain the volume amplitude of the first surround sound audio signal corresponding to the target sampling point.

[0124] As an extension and refinement of the above embodiments, this application provides a second embodiment of the audio processing method, referring to... Figure 3 As shown, the audio processing method in this embodiment includes the following steps:

[0125] S301, Obtain the first volume amplitude and the second volume amplitude.

[0126] S302. Calculate the product of the first volume amplitude and the arithmetic square root of the first phase coefficient to obtain the first calculation result.

[0127] That is, the first volume amplitude is expressed as The first acoustic phase coefficient is expressed as The first operation result is represented as Then we have:

[0128]

[0129] S303. Calculate the product of the arithmetic square root of the second volume amplitude and the second difference to obtain the second calculation result, where the second difference is the difference between the second fixed value and the first acoustic phase coefficient.

[0130] That is, the second volume amplitude is expressed as The first acoustic phase coefficient is expressed as The result of the second operation is expressed as Then we have:

[0131]

[0132] For example, the second value can be 1.

[0133] S304. Summing the first and second operation results to obtain the volume amplitude of the first center sound audio signal corresponding to the target sampling point;

[0134] S305. Calculate the difference between the first operation result and the second operation result to obtain the volume amplitude of the first surround sound audio signal corresponding to the target sampling point.

[0135] As an extension and refinement of the above embodiments, this application provides a third embodiment of the audio processing method, referring to... Figure 4 As shown, the audio processing method in this embodiment includes the following steps:

[0136] S401, Obtain the first volume amplitude and the second volume amplitude.

[0137] S402. Calculate the product of the first volume amplitude and the first sine value to obtain the first calculation result. The first sine value is the sine value of the product of the third constant value and the first acoustic phase coefficient.

[0138] That is, the first volume amplitude is expressed as The first acoustic phase coefficient is expressed as The first operation result is represented as Then we have:

[0139]

[0140] For example, the third value can be .

[0141] S403. Calculate the product of the second volume amplitude and the second sine value to obtain the second operation result. The second sine value is the sine value of the product of the third constant value and the third difference value. The third difference value is the difference between the fourth constant value and the first acoustic phase coefficient.

[0142] That is, the second volume amplitude is expressed as The first acoustic phase coefficient is expressed as The result of the second operation is expressed as Then we have:

[0143]

[0144] For example, the third value can be The fourth value can be 1.

[0145] S404. Sum the first operation result and the second operation result to obtain the volume amplitude of the first center sound audio signal corresponding to the target sampling point;

[0146] S405. Calculate the difference between the first operation result and the second operation result to obtain the volume amplitude of the first surround sound audio signal corresponding to the target sampling point.

[0147] Please see Figure 5 , Figure 5 This is a schematic diagram of the process of updating the first acoustic phase coefficient using the update parameters in the audio processing method provided in this application embodiment.

[0148] The audio processing method provided in this application embodiment also updates the first acoustic phase coefficient. Figures 1 to 4 Based on the audio processing method provided in any embodiment, the audio processing method of this embodiment further includes the following steps:

[0149] S501. Calculate the product of the absolute value of the first operation result and the absolute value of the second operation result to obtain the updated parameters.

[0150] That is, the absolute value of the first operation result is expressed as The absolute value of the second operation result is expressed as The updated parameters are represented as Then we have:

[0151]

[0152] S502. Determine if the update parameter is greater than zero.

[0153] That is, to judge Whether it is valid or not.

[0154] In step S502 above, if If successful, proceed to step 503.

[0155] S503, Substitute the absolute value of the first calculation result, the absolute value of the second calculation result, the update parameter, and the first acoustic phase coefficient into the third formula to obtain the third calculation result; Update the first acoustic phase coefficient to the third calculation result.

[0156] Step S503 above (substituting the absolute value of the first calculation result, the absolute value of the second calculation result, the update parameter, and the first acoustic phase coefficient into the third formula to obtain the third calculation result; updating the first acoustic phase coefficient to the third calculation result) includes:

[0157] Step a: Calculate the difference between the fourth fixed value and the updated parameter to obtain the first calculated value.

[0158] For example, the fourth value can be 1.

[0159] That is, the update parameter is represented as If the first calculated value is denoted as A, then:

[0160]

[0161] Step b: Calculate the ratio of the absolute value of the first calculation result to the second calculation value to obtain the third calculation value; the second calculation value is the sum of the absolute values ​​of the first calculation result and the second calculation result.

[0162] That is, the absolute value of the first operation result is expressed as The absolute value of the first operation result is expressed as If the second calculated value is represented by B and the third calculated value is represented by C, then:

[0163]

[0164]

[0165] Substituting B into C yields the third value:

[0166]

[0167] Step c: Calculate the product of the update parameter and the first acoustic phase coefficient to obtain the fourth calculated value.

[0168] That is, the update parameter is represented as The first acoustic phase coefficient is expressed as If the fourth calculated value is represented as D, then:

[0169]

[0170] Step d: Calculate the product of the first calculated value and the third calculated value to obtain the fifth calculated value.

[0171] That is, if we express the fifth calculated value as E, then we have:

[0172]

[0173] Substituting A and C into E yields the fifth calculated value:

[0174]

[0175] Step e: Sum the fourth and fifth calculated values ​​to obtain the third calculation result.

[0176] That is, the result of the third operation is represented as Then we have:

[0177]

[0178] Substituting D and E into the equations, we obtain the third result:

[0179]

[0180] Please see Figures 6-9 , Figure 6 This is a schematic flowchart of the fourth embodiment of the audio processing method provided in this application. Figure 7 Is it like this? Figure 6 The system architecture diagram of the audio processing method shown is as follows. Figure 7 yes Figure 6 The diagram shows a matrix router display of the audio signal input and output for the audio processing method illustrated. Figure 9 yes Figure 7 The diagram illustrates how the audio processing method uses a filter to process the output signal.

[0181] Based on the above embodiments, this application also provides a fourth embodiment of the audio processing method, referring to... Figure 6 As shown, the audio processing method in this embodiment includes the following steps:

[0182] S601, Obtain the first volume amplitude and the second volume amplitude.

[0183] S602, Calculate the first volume amplitude and the first phase coefficient. Calculate the product of the second volume amplitude and the first difference to obtain the second calculation result. The first difference is the difference between the first fixed value and the first acoustic phase coefficient.

[0184] S603. Summing the first calculation result and the second calculation result to obtain the volume amplitude of the first center sound audio signal corresponding to the target sampling point; calculating the difference between the first calculation result and the second calculation result to obtain the volume amplitude of the first surround sound audio signal corresponding to the target sampling point.

[0185] S604. Substitute the first volume amplitude and the second phase coefficient into the first formula to obtain the fourth calculation result; substitute the second volume amplitude and the second phase coefficient into the second formula to obtain the fifth calculation result.

[0186] Among them, the fourth calculation result is positively correlated with both the first volume amplitude and the second phase coefficient; the fifth calculation result is positively correlated with the second volume amplitude and negatively correlated with the second phase coefficient.

[0187] That is, the first volume amplitude is expressed as The second volume amplitude is expressed as The second acoustic phase coefficient is expressed as The result of the fourth operation is expressed as The result of the fifth operation is expressed as Then we have:

[0188]

[0189]

[0190] S605. Summing the fourth and fifth operation results to obtain the volume amplitude of the second center sound audio signal corresponding to the target sampling point; subtracting the fourth and fifth operation results to obtain the volume amplitude of the second surround sound audio signal corresponding to the target sampling point.

[0191] That is, the result of the fourth operation is expressed as The result of the fifth operation is expressed as The volume amplitude of the second center audio signal is expressed as: The volume amplitude of the second surround sound audio signal is expressed as: Then we have:

[0192]

[0193]

[0194] S606. Substitute the second volume amplitude and the third phase coefficient into the first formula to obtain the sixth calculation result; substitute the second volume amplitude and the third phase coefficient into the second formula to obtain the seventh calculation result.

[0195] Among them, the sixth calculation result is positively correlated with both the first volume amplitude and the third phase coefficient; the seventh calculation result is positively correlated with the second volume amplitude and negatively correlated with the third phase coefficient.

[0196] That is, the first volume amplitude is expressed as The second volume amplitude is expressed as The third acoustic phase coefficient is expressed as The result of the sixth operation is expressed as The result of the seventh operation is expressed as Then we have:

[0197]

[0198]

[0199] S607. Summing the results of the sixth and seventh operations to obtain the volume amplitude of the third center sound audio signal corresponding to the target sampling point; subtracting the results of the sixth and seventh operations to obtain the volume amplitude of the third surround sound audio signal corresponding to the target sampling point.

[0200] That is, the result of the sixth operation is represented as The result of the seventh operation is expressed as The volume amplitude of the third central acoustic signal is expressed as: The volume amplitude of the third surround sound audio signal is expressed as: Then we have:

[0201]

[0202]

[0203] Continue reading Figure 7 In some embodiments, the audio processing method further includes:

[0204] S608, by delaying the volume amplitude of the first surround sound audio signal corresponding to the target sampling point through a feedback delay network, at least two delayed surround sound audio signals are obtained.

[0205] For example, the number of volume amplitudes of the obtained delayed surround sound audio signal can be two, three, four, etc.

[0206] For example, the volume amplitudes of the various delayed surround sound audio signals are not equal.

[0207] In one embodiment, step S608 includes: delaying the volume amplitude of the first surround sound audio signal corresponding to the target sampling point using a reverb delay (A) to obtain at least two delayed surround sound audio signal volume amplitudes. For example, the volume amplitude of the first surround sound audio signal can be reverb-processed using a reverb delay effect according to the reverb category selected by the user, and then the volume amplitude of the reverb-processed first surround sound audio signal can be delayed to obtain at least two delayed surround sound audio signal volume amplitudes.

[0208] It should be noted that this embodiment uses a Feedback Delay Network (FDN) to delay the volume amplitude of the first surround sound audio signal corresponding to the target sampling point; of course, other delay algorithms can also be used, as long as they can delay the volume amplitude of the first surround sound audio signal corresponding to the target sampling point.

[0209] In some embodiments, the audio processing method is combined with a filter to achieve noise reduction;

[0210] The filters can include autoregressive (AR) filters, moving average (MA) filters, and autoregressive moving average (ARMA) filters.

[0211] In some embodiments, such as Figure 8 As shown, matrix router ( The interface design uses The matrix represents the audio signal input and output channels, and positive and negative logic is used to indicate whether the state is positive or negative.

[0212] like Figure 7 and Figure 8 As shown, for example, the first volume amplitude obtained in step S601 above... The input channel corresponds to the front output channel, which includes the left speaker, the subwoofer, and the vibrator. The second volume amplitude... The input channel corresponds to the front output channel, which consists of the right speaker, the subwoofer, and the vibrator; the volume amplitude of the first center acoustic signal obtained in step S603 above. The input channel, and the corresponding pre-output channels are the center speaker, the subwoofer speaker, and the vibrator; the volume amplitude of the second center audio signal obtained in step S605 above. The input channel corresponds to the front output channels for the left center speaker and the subwoofer channel speaker, and the volume amplitude of the second surround sound audio signal. The input channel corresponds to the front output channel of the left rear speaker; the volume amplitude of the third center sound audio signal obtained in step S606 above. The input channel corresponds to the front output channels of the right center speaker and the subwoofer, and the volume amplitude of the third surround sound audio signal. The input channel corresponds to the front output channel of the right rear speaker; the volume amplitudes of the four delayed surround sound audio signals obtained in step S608 are respectively expressed as: , , and The volume amplitude of the delayed surround sound audio signal The input channel corresponds to the front output channel of the upper left speaker. The input channel corresponds to the front output channel of the upper right speaker. The input channel corresponds to the front output channel of the upper left rear speaker. The input channel corresponds to the front output channel of the upper right rear speaker. For example... Figure 8 As shown, × represents negative logic and 〇 represents positive logic.

[0213] In some embodiments, combined with Figure 7 and Figure 9 Bass Management ( The design of the filter is based on the algorithm's crossover with the speaker's operating frequency band to ensure that most signals can be converted into effective working signals; for example, a Linkwitz-Riley filter is selected; for example, the operating frequency of the Linkwitz-Riley filter is 24dB.

[0214] It should be noted that, Figure 7 The examples shown are merely examples of system architectures that can be applied to the embodiments of this application, in order to help those skilled in the art understand the technical content of this application, but do not mean that the embodiments of this application cannot be used in other devices, systems, environments or scenarios.

[0215] As another example, the complete steps of the audio processing method are completed using the second embodiment of the audio processing method provided in this application.

[0216] The second embodiment of the audio processing method differs from the first embodiment in that the specific calculation methods for the first, second, fourth, fifth, sixth, and seventh calculation results are different. Please refer to the second embodiment of the audio processing method for details. The identical parts will not be repeated. The second embodiment of the audio processing method achieves the same technical effects as the first embodiment, and will not be repeated here.

[0217] As another example, the complete steps of the audio processing method are completed using the second embodiment of the audio processing method provided in this application.

[0218] The second embodiment of the audio processing method differs from the first embodiment in that the specific calculation methods for the first, second, fourth, fifth, sixth, and seventh calculation results are different. Please refer to the second embodiment of the audio processing method for details. The identical parts will not be repeated. The second embodiment of the audio processing method achieves the same technical effects as the first embodiment, and will not be repeated here.

[0219] Please see Figure 10 , Figure 10 This is a schematic diagram of the structure of the audio processing device provided in the embodiments of this application.

[0220] This embodiment provides an audio processing device 100, including:

[0221] The acquisition module 110 is used to acquire a first volume amplitude and a second volume amplitude, wherein the first volume amplitude and the second volume amplitude are the volume amplitude of the audio signal of the first channel and the audio signal of the second channel corresponding to the target sampling point, respectively.

[0222] The processing module 120 is used to substitute the first volume amplitude and the first phase coefficient into the first formula to obtain the first calculation result, and to substitute the second volume amplitude and the first phase coefficient into the second formula to obtain the second calculation result; the first calculation result is positively correlated with both the first volume amplitude and the first phase coefficient; the second calculation result is negatively correlated with the first phase coefficient.

[0223] The center sound acquisition module 130 is used to sum the first calculation result and the second calculation result to obtain the volume amplitude of the first center sound audio signal corresponding to the target sampling point.

[0224] The surround sound acquisition module 140 is used to calculate the difference between the first calculation result and the second calculation result to obtain the volume amplitude of the first surround sound audio signal corresponding to the target sampling point.

[0225] In some embodiments, the processing module 120 is specifically used to calculate the product of the first volume amplitude and the first phase coefficient to obtain the first calculation result, and to calculate the product of the second volume amplitude and the first difference to obtain the second calculation result, wherein the first difference is the difference between the first fixed value and the first phase coefficient.

[0226] In some embodiments, the processing module 120 is specifically used to calculate the product of the first volume amplitude and the arithmetic square root of the first phase coefficient to obtain the first calculation result, and to calculate the product of the second volume amplitude and the arithmetic square root of the second difference to obtain the second calculation result, wherein the second difference is the difference between the second constant value and the first phase coefficient.

[0227] In some embodiments, the processing module 120 is specifically configured to calculate the product of the first volume amplitude and the first sine value to obtain a first calculation result, and to calculate the product of the second volume amplitude and the second sine value to obtain a second calculation result;

[0228] Wherein, the first sine value is the sine of the product of the third fixed value and the first acoustic phase coefficient, and the third difference is the difference between the fourth fixed value and the first acoustic phase coefficient.

[0229] In some embodiments, the processing module 120 is further configured to calculate the product of the absolute value of the first operation result and the absolute value of the second operation result to obtain an update parameter; and determine whether the update parameter is greater than zero.

[0230] If so, the absolute value of the first calculation result, the absolute value of the second calculation result, the update parameter, and the first acoustic phase coefficient are substituted into the third formula to obtain the third calculation result; the first acoustic phase coefficient is updated to the third calculation result.

[0231] In some embodiments, the processing module 120 is specifically configured to: calculate the difference between the fourth fixed value and the updated parameter to obtain a first calculated value; calculate the ratio of the absolute value of the first calculation result to the second calculated value to obtain a third calculated value; the second calculated value is the sum of the absolute values ​​of the first calculation result and the second calculation result; calculate the product of the updated parameter and the first acoustic phase coefficient to obtain a fourth calculated value; calculate the product of the first calculated value and the third calculated value to obtain a fifth calculated value; and sum the fourth calculated value and the fifth calculated value to obtain the third calculation result.

[0232] In some embodiments, the center sound acquisition module 130 is further configured to, after summing the first calculation result and the second calculation result to obtain the volume amplitude of the first center sound audio signal corresponding to the target sampling point, substitute the first volume amplitude and the second phase coefficient into the first formula to obtain a fourth calculation result; the fourth calculation result is positively correlated with both the first volume amplitude and the second phase coefficient; substitute the second volume amplitude and the second phase coefficient into the second formula to obtain a fifth calculation result; the fifth calculation result is positively correlated with the second volume amplitude and negatively correlated with the second phase coefficient; sum the fourth calculation result and the fifth calculation result to obtain the volume amplitude of the second center sound audio signal corresponding to the target sampling point; and calculate the difference between the fourth calculation result and the fifth calculation result to obtain the volume amplitude of the second surround sound audio signal corresponding to the target sampling point.

[0233] In some embodiments, the center sound acquisition module 130 is further configured to, after summing the first calculation result and the second calculation result to obtain the volume amplitude of the first center sound audio signal corresponding to the target sampling point, substitute the second volume amplitude and the third phase coefficient into the first formula to obtain a sixth calculation result; the sixth calculation result is positively correlated with both the first volume amplitude and the third phase coefficient; substitute the second volume amplitude and the third phase coefficient into the second formula to obtain a seventh calculation result; the seventh calculation result is positively correlated with the second volume amplitude and negatively correlated with the third phase coefficient; sum the sixth calculation result and the seventh calculation result to obtain the volume amplitude of the third center sound audio signal corresponding to the target sampling point; and calculate the difference between the sixth calculation result and the seventh calculation result to obtain the volume amplitude of the third surround sound audio signal corresponding to the target sampling point.

[0234] In some embodiments, the center sound acquisition module 130 is further configured to perform delay processing on the volume amplitude of the surround sound audio signal corresponding to the target sampling point through a feedback delay network to obtain the volume amplitude of at least two delayed surround sound audio signals.

[0235] The audio processing apparatus provided in the above embodiments can execute the audio processing method provided in the above embodiments and can achieve the same technical effect as the audio processing method provided in the above embodiments. To avoid redundancy, further description is omitted here. Please refer to... Figure 11 , Figure 11 This is a schematic diagram of the structure of the electronic device provided in the embodiments of this application.

[0236] This embodiment provides an electronic device 200, including: a processor 210, a memory 220, and a computer program stored in the memory 220 and executable on the processor 210. When the computer program is executed by the processor 210, it implements the audio processing method provided in any of the above embodiments.

[0237] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product implemented on one or more computer-usable storage media containing computer-usable program code.

[0238] The processor 210 can be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or any conventional processor.

[0239] Memory 220 may include non-persistent memory in the form of computer-readable media, random access memory (RAM), and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0240] Computer-readable storage media include both permanent and non-permanent, removable and non-removable storage media. Storage media can store information using any method or technology; the information can be computer-readable instructions, data structures, program modules, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0241] In one embodiment, the vehicle provided in this application includes an electronic device 200, a housing, and a driver's cab within the housing, wherein the electronic device 200 is disposed in the driver's cab.

[0242] It should be noted that the audio processing method S100 provided in this application provides a sound separation method and a matrix router to enhance the flexibility of adjusting signal configuration. The audio processing method S100 is not limited to vehicles, but can also be applied to other fields that require audio processing, such as music production, film post-production, and broadcasting.

[0243] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An audio processing method, characterized in that, include: Acquire a first volume amplitude and a second volume amplitude, wherein the first volume amplitude and the second volume amplitude are respectively the volume amplitude of the audio signal of the first channel and the volume amplitude of the audio signal of the second channel corresponding to the target sampling point; Substitute the first volume amplitude and the first acoustic phase coefficient into the first formula to obtain the first calculation result; The first calculation result is positively correlated with both the first volume amplitude and the first phase coefficient, where the first phase coefficient is the quality factor of the phase noise at the target sampling point. Substitute the second volume amplitude and the first acoustic phase coefficient into the second formula to obtain the second calculation result; The second calculation result is positively correlated with the second volume amplitude, and negatively correlated with the first acoustic phase coefficient; The first calculation result and the second calculation result are summed to obtain the volume amplitude of the first center sound audio signal corresponding to the target sampling point; The difference between the first calculation result and the second calculation result is used to obtain the volume amplitude of the first surround sound audio signal corresponding to the target sampling point.

2. The method according to claim 1, characterized in that, The step of substituting the first volume amplitude and the first phase coefficient into the first formula to obtain the first calculation result includes: Calculate the product of the first volume amplitude and the first acoustic phase coefficient to obtain the first calculation result; The step of substituting the second volume amplitude and the first acoustic phase coefficient into the second formula to obtain the second calculation result includes: Calculate the product of the second volume amplitude and the first difference to obtain the second calculation result, where the first difference is the difference between the first fixed value and the first acoustic phase coefficient.

3. The method according to claim 1, characterized in that, The step of substituting the first volume amplitude and the first phase coefficient into the first formula to obtain the first calculation result includes: Calculate the product of the first volume amplitude and the arithmetic square root of the first phase coefficient to obtain the first calculation result; The step of substituting the second volume amplitude and the first acoustic phase coefficient into the second formula to obtain the second calculation result includes: Calculate the product of the arithmetic square root of the second volume amplitude and the second difference to obtain the second calculation result, where the second difference is the difference between the second constant value and the first acoustic phase coefficient.

4. The method according to claim 1, characterized in that, The step of substituting the first volume amplitude and the first phase coefficient into the first formula to obtain the first calculation result includes: Calculate the product of the first volume amplitude and the first sine value to obtain the first calculation result, wherein the first sine value is the sine value of the product of the third constant value and the first acoustic phase coefficient; The step of substituting the second volume amplitude and the first acoustic phase coefficient into the second formula to obtain the second calculation result includes: Calculate the product of the second volume amplitude and the second sine value to obtain the second calculation result. The second sine value is the sine of the product of the third constant value and the third difference value. The third difference value is the difference between the fourth constant value and the first acoustic phase coefficient.

5. The method according to any one of claims 1-4, characterized in that, The method further includes: Calculate the product of the absolute value of the first operation result and the absolute value of the second operation result to obtain the updated parameters; Determine whether the update parameter is greater than zero; If so, the absolute value of the first calculation result, the absolute value of the second calculation result, the update parameter, and the first acoustic phase coefficient are substituted into the third formula to obtain the third calculation result; Update the first acoustic phase coefficient to the third calculation result; The step of substituting the absolute value of the first calculation result, the absolute value of the second calculation result, the update parameter, and the first acoustic phase coefficient into the third formula to obtain the third calculation result includes: Calculate the difference between the fourth fixed value and the updated parameter to obtain the first calculated value; Calculate the ratio of the absolute value of the first calculation result to the second calculation value to obtain a third calculation value; the second calculation value is the sum of the absolute values ​​of the first calculation result and the second calculation result. Calculate the product of the updated parameter and the first acoustic phase coefficient to obtain the fourth calculated value; Calculate the product of the first calculated value and the third calculated value to obtain the fifth calculated value; The fourth calculated value and the fifth calculated value are summed to obtain the third operation result.

6. The method according to any one of claims 1-4, characterized in that, After summing the first calculation result and the second calculation result to obtain the volume amplitude of the first center sound audio signal corresponding to the target sampling point, the method further includes: Substitute the first volume amplitude and the second phase coefficient into the first formula to obtain the fourth calculation result; the fourth calculation result is positively correlated with both the first volume amplitude and the second phase coefficient. Substitute the second volume amplitude and the second phase coefficient into the second formula to obtain the fifth calculation result; the fifth calculation result is positively correlated with the second volume amplitude and negatively correlated with the second phase coefficient; The fourth and fifth operation results are summed to obtain the volume amplitude of the second center sound audio signal corresponding to the target sampling point; The difference between the fourth and fifth operation results is calculated to obtain the volume amplitude of the second surround sound audio signal corresponding to the target sampling point.

7. The method according to any one of claims 1-4, characterized in that, After summing the first calculation result and the second calculation result to obtain the volume amplitude of the first center sound audio signal corresponding to the target sampling point, the method further includes: Substitute the second volume amplitude and the third phase coefficient into the first formula to obtain the sixth calculation result; the sixth calculation result is positively correlated with both the first volume amplitude and the third phase coefficient; Substitute the second volume amplitude and the third phase coefficient into the second formula to obtain the seventh calculation result; the seventh calculation result is positively correlated with the second volume amplitude and negatively correlated with the third phase coefficient; The sixth and seventh operation results are summed to obtain the volume amplitude of the third center sound audio signal corresponding to the target sampling point; The difference between the sixth and seventh operation results is used to obtain the volume amplitude of the third surround sound audio signal corresponding to the target sampling point.

8. The method according to any one of claims 1-4, characterized in that, The method further includes: The volume amplitude of the surround sound audio signal corresponding to the target sampling point is delayed by a feedback delay network to obtain the volume amplitude of at least two delayed surround sound audio signals.

9. An audio processing device, characterized in that, include: The acquisition module is used to acquire a first volume amplitude and a second volume amplitude, wherein the first volume amplitude and the second volume amplitude are the volume amplitude of the audio signal of the first channel and the audio signal of the second channel corresponding to the target sampling point, respectively. The processing module is used to substitute the first volume amplitude and the first phase coefficient into a first formula to obtain a first calculation result, and to substitute the second volume amplitude and the first phase coefficient into a second formula to obtain a second calculation result; The first calculation result is positively correlated with both the first volume amplitude and the first acoustic phase coefficient; The second calculation result is negatively correlated with the first acoustic phase coefficient, which is the quality factor of the phase noise at the target sampling point; The center sound acquisition module is used to sum the first calculation result and the second calculation result to obtain the volume amplitude of the first center sound audio signal corresponding to the target sampling point; The surround sound acquisition module is used to calculate the difference between the first calculation result and the second calculation result to obtain the volume amplitude of the first surround sound audio signal corresponding to the target sampling point.

10. An electronic device, characterized in that, include: A processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the audio processing method as described in any one of claims 1 to 8.

11. A vehicle, characterized in that, include: The electronic device as claimed in claim 10; The housing and the driver's cab within the housing, wherein the electronic equipment is located in the driver's cab.

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