An audio signal processing method, apparatus, storage medium, and electronic device.

Abstract

This invention provides an audio signal processing method, apparatus, storage medium, and electronic device. In this method, a frequency domain signal is segmented based on pre-defined frequency division requirements, resulting in at least two sub-frequency domain signals. These at least two sub-frequency domain signals encompass all frequency bands in the frequency domain signal. Based on the frequency magnitude of the sub-frequency domain signals, each sub-frequency domain signal is processed, enabling each sub-frequency domain signal at different frequencies to generate corresponding harmonic signals. This solves the problem in existing audio signal processing techniques that can only generate harmonic signals corresponding to high-frequency signals. Furthermore, because the phase information of the generated harmonic signals is completely consistent with the phase information of the audio input signal that corresponds to the harmonic frequency of the sub-frequency domain signal, the sound quality problem caused by the phase difference between the harmonic signals and the audio input signal is resolved.

Description

Technical Field

[0001] This invention relates to the field of electronic technology, and more specifically, to a method and apparatus for processing audio signals, a storage medium, and an electronic device. Background Technology

[0002] Music has always enriched people's lives. However, when music is played directly from a speaker, its expressiveness is limited and the sound effect is not particularly good. Sound exciters can use the psychoacoustic characteristics of humans to modify and beautify sound signals. By adding components to the sound, they can improve the sound quality and timbre and increase the spatial sense of the sound.

[0003] However, current audio input signal processing can only generate harmonic signals to excite the high-frequency signal portion, and the generated harmonic signals have a phase difference with the high-frequency signals in the audio input signal, thus having limited improvement on sound quality. Summary of the Invention

[0004] In view of this, to solve the above problems, the present invention provides an audio signal processing method and apparatus, a storage medium, and an electronic device, the technical solution of which is as follows:

[0005] An audio signal processing method, the processing method comprising:

[0006] The audio input signal is processed to obtain a frequency domain signal, and the frequency domain signal is segmented to obtain at least two sub-frequency domain signals;

[0007] Processing any one of the sub-frequency domain signals includes:

[0008] Determine the harmonic frequency of the sub-frequency domain signal;

[0009] Based on the frequency harmonic, obtain the phase information of the audio input signal that is the same as the frequency harmonic;

[0010] The amplitude information of the sub-frequency domain signal is obtained, and a harmonic signal corresponding to the sub-frequency domain signal is generated based on the amplitude information and the phase information.

[0011] Optionally, in the above processing method, the processing method further includes:

[0012] The amplitude of the harmonic signal is adjusted to obtain the target harmonic signal.

[0013] Optionally, in the above processing method, the processing method further includes:

[0014] Based on the target harmonic signal, the corresponding sub-frequency domain signals are integrated and processed to obtain the target sub-frequency domain signal.

[0015] Optionally, in the above processing method, the processing method further includes:

[0016] All the target sub-frequency domain signals are integrated and processed to obtain the audio output signal.

[0017] An audio signal processing apparatus, the processing apparatus comprising:

[0018] The segmentation module is used to process the audio input signal to obtain a frequency domain signal, and to segment the frequency domain signal to obtain at least two sub-frequency domain signals.

[0019] The processing module is used to process any one of the sub-frequency domain signals, including:

[0020] A determination submodule is used to determine the harmonic frequency of the sub-frequency domain signal;

[0021] The acquisition submodule is used to acquire phase information in the audio input signal that is the same as the frequency point of the harmonic frequency based on the harmonic frequency;

[0022] A generation submodule is used to obtain the amplitude information of the sub-frequency domain signal and generate a harmonic signal corresponding to the sub-frequency domain signal based on the amplitude information and the phase information.

[0023] Optionally, in the above-described processing apparatus, the processing apparatus further includes:

[0024] An adjustment module is used to adjust the amplitude of the harmonic signal to obtain the target harmonic signal.

[0025] Optionally, in the above-described processing apparatus, the processing apparatus further includes:

[0026] The first integration module is used to integrate the corresponding sub-frequency domain signals based on the target harmonic signal to obtain the target sub-frequency domain signal.

[0027] Optionally, in the above-described processing apparatus, the processing apparatus further includes:

[0028] The second integration module is used to integrate and process all the target sub-frequency domain signals to obtain an audio output signal.

[0029] A computer-readable storage medium storing computer-executable instructions for performing any of the processing methods described above.

[0030] An electronic device includes: at least one processor, and at least one memory and bus connected to the processor;

[0031] The processor and the memory communicate with each other via the bus.

[0032] The processor is used to invoke program instructions in the memory to execute any of the processing methods described above.

[0033] Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

[0034] This invention provides an audio signal processing method. In this method, the frequency domain signal is segmented based on a pre-defined frequency division requirement, resulting in at least two sub-frequency domain signals. These at least two sub-frequency domain signals encompass all frequency bands of the original frequency domain signal. Based on the frequency magnitude of the sub-frequency domain signals, sub-frequency domain signals at relatively higher frequencies are considered high-frequency sub-frequency domain signals, those at relatively lower frequencies are considered low-frequency sub-frequency domain signals, and those between higher and lower frequencies are considered mid-frequency sub-frequency domain signals. Processing each sub-frequency domain signal is equivalent to processing a high-frequency, mid-frequency, or low-frequency sub-frequency domain signal, thereby enabling each sub-frequency domain signal at different frequencies to generate corresponding harmonic signals. This solves the problem in existing audio signal processing technologies that can only generate harmonic signals corresponding to high-frequency signals. Furthermore, since the phase information of the harmonic signal is obtained by using the phase information of the audio input signal that is the same as the frequency of the harmonic frequency of the sub-frequency domain signal, the phase information of the harmonic signal and the phase information of the audio input signal that is the same as the frequency of the harmonic frequency of the sub-frequency domain signal are completely consistent, thus solving the sound quality problem caused by the phase difference between the harmonic signal and the audio input signal. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0036] Figure 1 A flowchart illustrating an audio signal processing method provided in an embodiment of the present invention;

[0037] Figure 2 This is a schematic diagram illustrating segmentation of an audio input signal according to an embodiment of the present invention;

[0038] Figure 3 A flowchart illustrating another audio signal processing method provided in an embodiment of the present invention;

[0039] Figure 4A flowchart illustrating another audio signal processing method provided in an embodiment of the present invention;

[0040] Figure 5 This is a schematic diagram illustrating the principle of audio signal processing provided in an embodiment of the present invention;

[0041] Figure 6 A flowchart illustrating another audio signal processing method provided in an embodiment of the present invention;

[0042] Figure 7 A flowchart illustrating another audio signal processing method provided in an embodiment of the present invention;

[0043] Figure 8 A flowchart illustrating another audio signal processing method provided in an embodiment of the present invention;

[0044] Figure 9 This is a schematic diagram illustrating another principle of audio signal processing provided in an embodiment of the present invention;

[0045] Figure 10 A schematic diagram of an audio signal processing device provided in an embodiment of the present invention;

[0046] Figure 11 A schematic diagram of another audio signal processing device provided in an embodiment of the present invention;

[0047] Figure 12 A schematic diagram of a module for another audio signal processing device provided in an embodiment of the present invention;

[0048] Figure 13 A schematic diagram of a module for another audio signal processing device provided in an embodiment of the present invention;

[0049] Figure 14 This is a hardware architecture diagram of an electronic device provided in an embodiment of the present invention. Detailed Implementation

[0050] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0051] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0052] refer to Figure 1 , Figure 1This is a flowchart illustrating an audio signal processing method according to an embodiment of the present invention. The processing method includes:

[0053] S101: Process the audio input signal to obtain a frequency domain signal, and divide the frequency domain signal into segments to obtain at least two sub-frequency domain signals.

[0054] In this step, refer to Figure 2 , Figure 2 This is a schematic diagram illustrating segmentation of an audio input signal according to an embodiment of the present invention. First, the audio input signal undergoes a Fast Fourier Transform (FFT) process, converting it into a frequency domain signal. Then, based on pre-defined frequency division requirements, the frequency domain signal is segmented, resulting in at least two sub-frequency domain signals, each containing all frequency bands of the original frequency domain signal. For example... Figure 2 As shown, for example, based on a pre-defined frequency division requirement, the frequency domain signal is segmented to obtain N different sub-frequency signals, such as sub-frequency signal 1, sub-frequency signal 2, ..., sub-frequency signal N, where N is a positive integer greater than or equal to 2. Based on the frequency magnitude of the sub-frequency signals, sub-frequency signals at relatively high frequencies are considered high-frequency sub-frequency signals, those at relatively low frequencies are considered low-frequency sub-frequency signals, and those between relatively high and low frequencies are considered mid-frequency sub-frequency signals. Processing each sub-frequency signal is equivalent to processing a high-frequency, mid-frequency, or low-frequency sub-frequency signal. For example, when the frequency of sub-frequency signal 1 is relatively high, it can be considered a high-frequency sub-frequency signal; when the frequency of sub-frequency signal 2 is relatively low, it can be considered a low-frequency sub-frequency signal.

[0055] It should be noted that the frequency of the sub-frequency domain signal is relative and not specifically limited. The frequency of the high-frequency, mid-frequency, and low-frequency sub-frequency domain signals is also set relatively according to the frequency of the sub-frequency domain signal, and is not specifically limited.

[0056] It should be noted that the Fast Fourier Transform is merely one implementation method for processing audio input signals in this invention embodiment. The processing methods include, but are not limited to, the Fast Fourier Transform, and other methods can also be used to process audio input signals.

[0057] S102: Processing any one of the sub-frequency domain signals, including:

[0058] Determine the harmonic frequency of the sub-frequency domain signal.

[0059] Based on the frequency harmonic, obtain the phase information of the audio input signal that is the same as the frequency harmonic.

[0060] The amplitude information of the sub-frequency domain signal is obtained, and a harmonic signal corresponding to the sub-frequency domain signal is generated based on the amplitude information and the phase information.

[0061] In this step, because there are N sub-frequency domain signals, each sub-frequency domain signal needs to be processed. First, the harmonic frequency of each sub-frequency domain signal is determined. Then, based on the harmonic frequency of the sub-frequency domain signal, the phase information of the frequency points in the audio input signal that are the same as the harmonic frequency can be obtained. For example, if the frequency of the sub-frequency domain signal is 100Hz, then let the harmonic frequency of the corresponding sub-frequency domain signal be 200Hz. Then, using this 200Hz harmonic frequency as a reference, the phase information of the frequency points in the audio input signal that are the same as the 200Hz harmonic frequency can be obtained.

[0062] After acquiring the amplitude information of each sub-frequency domain signal, a harmonic signal is generated based on the phase information of the frequency point in the audio input signal that is the same as the harmonic frequency of the sub-frequency domain signal and the amplitude information of the sub-frequency domain signal. This harmonic signal corresponds to each sub-frequency domain signal and serves as the excitation component of each sub-frequency domain signal. At this point, since the phase information of the harmonic signal is obtained through the phase information of the frequency point in the audio input signal that is the same as the harmonic frequency of the sub-frequency domain signal, the phase information of the harmonic signal and the phase information of the frequency point in the audio input signal that is the same as the harmonic frequency of the sub-frequency domain signal are completely consistent, thus solving the sound quality problem caused by the phase difference between the harmonic signal and the audio input signal.

[0063] It should be noted that since there are N different sub-frequency domain signals, the above processing is performed on each sub-frequency domain signal to obtain N harmonic signals corresponding to the sub-frequency domain signals.

[0064] Optionally, in another embodiment of the invention, reference is made to... Figure 3 , Figure 3 This is a flowchart illustrating another audio signal processing method provided in an embodiment of the present invention, the processing method further comprising:

[0065] S103: Based on the harmonic signal, the corresponding sub-frequency domain signal is integrated and processed to obtain a new sub-frequency domain signal.

[0066] In this step, each harmonic signal is integrated with its corresponding sub-frequency domain signal, that is, each harmonic signal is added to the sub-frequency domain signal corresponding to each harmonic signal, so that the sub-frequency domain signal is excited and a new sub-frequency domain signal is formed.

[0067] Optionally, in another embodiment of the invention, reference is made to... Figure 4, Figure 4 This is a flowchart illustrating another audio signal processing method provided by an embodiment of the present invention, the processing method further comprising:

[0068] S104: Integrate all the new sub-frequency domain signals to obtain the audio output signal.

[0069] In this step, the new sub-frequency domain signal corresponds to the original sub-frequency domain signal. At this time, the new sub-frequency domain signal is the sub-frequency domain signal that has been excited. After integrating the new sub-frequency domain signals, an Inverse Fast Fourier Transform (IFFT) is performed to obtain the final audio output signal.

[0070] It should be noted that the inverse fast Fourier transform is merely one implementation method for processing new frequency domain signals in this invention. The processing method includes, but is not limited to, the inverse fast Fourier transform, and other methods can also be used to process new frequency domain signals.

[0071] Further reference Figure 5 , Figure 5 This is a schematic diagram of the principle of audio signal processing provided by an embodiment of the present invention. It should be noted that, in this embodiment, the processing of sub-frequency domain signals includes, but is not limited to, using a phase vocoder, integrating the generated harmonic signals with the sub-frequency domain signals to obtain new sub-frequency domain signals, and then performing an inverse Fourier transform on the new sub-frequency domain signals to obtain an audio output signal.

[0072] Optionally, in yet another embodiment of the invention, reference is made to... Figure 6 , Figure 6 This is a flowchart illustrating another audio signal processing method provided by an embodiment of the present invention, the processing method further comprising:

[0073] S105: Adjust the amplitude of the harmonic signal to obtain the target harmonic signal.

[0074] In this step, the frequency domain signal is segmented based on pre-defined frequency division requirements, resulting in at least two sub-frequency domain signals. These at least two sub-frequency domain signals encompass all frequency bands within the frequency domain signal. Based on the frequency magnitude of the sub-frequency domain signals, signals at relatively higher frequencies are considered high-frequency, signals at relatively lower frequencies are considered low-frequency, and signals between higher and lower frequencies are considered mid-frequency. Processing each sub-frequency domain signal is equivalent to processing high-frequency, mid-frequency, or low-frequency sub-frequency domain signals, thereby generating corresponding harmonic signals for each sub-frequency domain signal at different frequencies. Since the harmonic signals generated based on the frequency magnitude of the sub-frequency domain signals require different excitation components for sub-frequency domain signals of different magnitudes, the amplitude of the harmonic signals must be adjusted to obtain the target harmonic signal.

[0075] When the frequency of the sub-frequency domain signal is relatively low, it can be considered a low-frequency sub-frequency domain signal. Exciting a low-frequency sub-frequency domain signal requires more harmonics. In this case, the harmonic amplitude generated at that frequency can be multiplied by 2 to obtain the target harmonic signal. When the frequency of the sub-frequency domain signal is relatively high, it can be considered a high-frequency sub-frequency domain signal. Exciting a high-frequency sub-frequency domain signal requires fewer harmonics. In this case, the harmonic amplitude generated at that frequency can be multiplied by 0.05 to obtain the target harmonic signal. When the frequency of the sub-frequency domain signal is between relatively low and relatively high frequencies, it can be considered a mid-frequency sub-frequency domain signal. Exciting a mid-frequency sub-frequency domain signal requires fewer harmonics than a low-frequency sub-frequency domain signal but more than a high-frequency sub-frequency domain signal. In this case, the harmonic amplitude generated at that frequency can be multiplied by 0.5 to obtain the target harmonic signal. The adjusted target harmonic signal excites its corresponding sub-frequency domain signal, which enhances the fullness, impact, and spatiality of the audio, solving the problem that existing audio signal processing technologies can only generate harmonic signals corresponding to high-frequency signals.

[0076] Optionally, in another embodiment of this application, reference is made to... Figure 7 , Figure 7 This is a flowchart illustrating another audio signal processing method provided by an embodiment of the present invention, the processing method further comprising:

[0077] S106: Based on the target harmonic signal, the corresponding sub-frequency domain signal is integrated and processed to obtain the target sub-frequency domain signal.

[0078] In this step, each target harmonic signal is integrated with its corresponding sub-frequency domain signal, that is, each target harmonic signal is added to the sub-frequency domain signal corresponding to it, so that the sub-frequency domain signal is excited to form the target sub-frequency domain signal.

[0079] Optionally, in another embodiment of this application, reference is made to... Figure 8 , Figure 8 This is a flowchart illustrating another audio signal processing method provided by an embodiment of the present invention, the processing method further comprising:

[0080] S107: Integrate and process all the target sub-frequency domain signals to obtain the audio output signal.

[0081] In this step, the target sub-frequency domain signal corresponds to the original sub-frequency domain signal. At this time, the target sub-frequency domain signal is the sub-frequency domain signal that is excited. After integrating the target sub-frequency domain signals, an inverse fast fourier transform (IFFT) is performed to obtain the final audio output signal.

[0082] It should be noted that the inverse fast Fourier transform is merely one implementation method for processing the new frequency domain signal in this invention. The processing methods include, but are not limited to, the inverse fast Fourier transform; other methods can also be used to process the target frequency domain signal. The resulting audio output signal, when played, not only improves clarity but also enhances the fullness and impact of the sound.

[0083] Further reference Figure 9 , Figure 9 This is a schematic diagram of another audio signal processing principle provided by an embodiment of the present invention. It should be noted that processing the sub-frequency domain signal includes, but is not limited to, using a phase vocoder. In this embodiment, the generated harmonic signal is adjusted to obtain a target harmonic signal. The target harmonic signal is integrated with the sub-frequency domain signal to obtain a target sub-frequency domain signal. After integrating the target sub-frequency domain signal, an inverse Fourier transform is performed to obtain an audio output signal.

[0084] Based on the above embodiments, the present invention also provides an audio signal processing apparatus, with reference to... Figure 10 , Figure 10 This is a schematic diagram of a module for an audio signal processing device provided in an embodiment of the present invention. The processing device includes:

[0085] The segmentation module 11 is used to process the audio input signal to obtain a frequency domain signal, and to segment the frequency domain signal to obtain at least two sub-frequency domain signals.

[0086] Processing module 12 is used to process any one of the sub-frequency domain signals, including:

[0087] The determination submodule 121 is used to determine the harmonic frequency of the sub-frequency domain signal.

[0088] The acquisition submodule 122 is used to acquire phase information in the audio input signal that is the same as the frequency point of the harmonic frequency based on the harmonic frequency.

[0089] The generation submodule 123 is used to obtain the amplitude information of the sub-frequency domain signal and generate a harmonic signal corresponding to the sub-frequency domain signal based on the amplitude information and the phase information.

[0090] In this embodiment, the frequency domain signal is segmented based on a pre-defined frequency division requirement, resulting in at least two sub-frequency domain signals. These at least two sub-frequency domain signals encompass all frequency bands within the frequency domain signal. Based on the frequency magnitude of the sub-frequency domain signals, sub-frequency domain signals at relatively higher frequencies are considered high-frequency sub-frequency domain signals, those at relatively lower frequencies are considered low-frequency sub-frequency domain signals, and those between higher and lower frequencies are considered mid-frequency sub-frequency domain signals. Processing each sub-frequency domain signal is equivalent to processing a high-frequency, mid-frequency, or low-frequency sub-frequency domain signal, thereby enabling each sub-frequency domain signal at different frequencies to generate corresponding harmonic signals. This solves the problem in existing technologies where audio signal processing can only generate harmonic signals corresponding to high-frequency signals. Furthermore, since the phase information of the harmonic signal is obtained by using the phase information of the audio input signal that is the same as the frequency of the harmonic frequency of the sub-frequency domain signal, the phase information of the harmonic signal and the phase information of the audio input signal that is the same as the frequency of the harmonic frequency of the sub-frequency domain signal are completely consistent, thus solving the sound quality problem caused by the phase difference between the harmonic signal and the audio input signal.

[0091] Optionally, in another embodiment of the invention, reference is made to... Figure 11 , Figure 11 This is a schematic diagram of another audio signal processing device provided in an embodiment of the present invention, the processing device further comprising:

[0092] The adjustment module 13 is used to adjust the amplitude of the harmonic signal to obtain the target harmonic signal.

[0093] Furthermore, based on the above embodiments of the present invention, refer to Figure 12 , Figure 12 This is a schematic diagram of a module for another audio signal processing device provided in an embodiment of the present invention, the processing device further comprising:

[0094] The first integration module 14 is used to integrate the corresponding sub-frequency domain signals based on the target harmonic signal to obtain the target sub-frequency domain signal.

[0095] Furthermore, based on the above embodiments of the present invention, refer to Figure 13 , Figure 13 This is a schematic diagram of a module for another audio signal processing device provided in an embodiment of the present invention, the processing device further comprising:

[0096] The second integration module 15 is used to integrate and process all the target sub-frequency domain signals to obtain an audio output signal.

[0097] It should be noted that the audio signal processing device provided in the embodiments of the present invention is based on the same principle as the audio signal processing method provided in the above embodiments of the present invention, and will not be described in detail here.

[0098] Furthermore, based on the above embodiments of the present invention, another embodiment of the present invention also provides a computer-readable storage medium storing computer-executable instructions for performing the processing method described in the above embodiments.

[0099] Furthermore, based on the above embodiments of the present invention, another embodiment of the present invention also provides an electronic device, with reference to... Figure 14 , Figure 14 This is a hardware architecture diagram of an electronic device provided in an embodiment of the present invention.

[0100] The electronic device includes: at least one processor 16, and at least one memory 17 and bus 18 connected to the processor 16;

[0101] The processor 16 and the memory 17 communicate with each other through the bus 18.

[0102] The processor 16 is used to call program instructions in the memory 17 to execute the processing method described in the above embodiments.

[0103] The above provides a detailed description of an audio signal processing method, apparatus, storage medium, and electronic device provided by the present invention. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

[0104] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0105] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that elements inherent to a process, method, article, or apparatus that comprises a list of elements, or elements inherent to such processes, methods, articles, or apparatus, are also included. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0106] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for processing audio signals, characterized in that, The processing method includes: The audio input signal is processed to obtain a frequency domain signal, and the frequency domain signal is segmented to obtain at least two sub-frequency domain signals; Processing any one of the sub-frequency domain signals includes: Determine the harmonic frequency of the sub-frequency domain signal; Based on the frequency harmonic, obtain the phase information of the audio input signal that is the same as the frequency harmonic; The amplitude information of the sub-frequency domain signal is obtained, and a harmonic signal corresponding to the sub-frequency domain signal is generated based on the amplitude information and the phase information.

2. The processing method according to claim 1, characterized in that, The processing method further includes: The amplitude of the harmonic signal is adjusted to obtain the target harmonic signal.

3. The processing method according to claim 2, characterized in that, The processing method further includes: Based on the target harmonic signal, the corresponding sub-frequency domain signals are integrated and processed to obtain the target sub-frequency domain signal.

4. The processing method according to claim 3, characterized in that, The processing method further includes: All the target sub-frequency domain signals are integrated and processed to obtain the audio output signal.

5. An audio signal processing device, characterized in that, The processing device includes: The segmentation module is used to process the audio input signal to obtain a frequency domain signal, and to segment the frequency domain signal to obtain at least two sub-frequency domain signals. The processing module is used to process any one of the sub-frequency domain signals, including: A determination submodule is used to determine the harmonic frequency of the sub-frequency domain signal; The acquisition submodule is used to acquire phase information in the audio input signal that is the same as the frequency point of the harmonic frequency based on the harmonic frequency; A generation submodule is used to obtain the amplitude information of the sub-frequency domain signal and generate a harmonic signal corresponding to the sub-frequency domain signal based on the amplitude information and the phase information.

6. The processing apparatus according to claim 5, characterized in that, The processing device further includes: An adjustment module is used to adjust the amplitude of the harmonic signal to obtain the target harmonic signal.

7. The processing apparatus according to claim 6, characterized in that, The processing device further includes: The first integration module is used to integrate the corresponding sub-frequency domain signals based on the target harmonic signal to obtain the target sub-frequency domain signal.

8. The processing apparatus according to claim 7, characterized in that, The processing device further includes: The second integration module is used to integrate and process all the target sub-frequency domain signals to obtain an audio output signal.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions for performing the processing method according to any one of claims 1-4.

10. An electronic device, characterized in that, The electronic device includes: at least one processor, and at least one memory and bus connected to the processor; The processor and the memory communicate with each other via the bus. The processor is used to invoke program instructions in the memory to execute the processing method according to any one of claims 1-4.

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