Audio signal processing method, device and storage medium
AssigneesGuangzhou Shiyuan Electronic Technology Company Limited, Guangzhou Shikun Electronics Co., Ltd.
InventorJianliang Jiang
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Abstract
An audio signal processing method, device and storage medium, are provided. The method includes performing sub-band filtering on a to-be-processed audio signal to obtain a plurality of sub-band signals, wherein the number of the sub-band signals is determined according to a lowest frequency of a band-pass filter and a cut-off frequency of an audio apparatus, and the sub-band signals comprise sub-band band-pass signals; and obtaining a target audio signal according to each of the sub-band band-pass signals and a processing algorithm of virtual bass enhancement signal.
Claims20
An audio signal processing method, comprising:
- performing sub-band filtering on a to-be-processed audio signal to obtain a plurality of sub-band signals, and the sub-band signals comprise sub-band band-pass signals;
- and
- obtaining a target audio signal according to each of the sub-band band-pass signals and a processing algorithm of virtual bass enhancement signal, wherein obtaining the target audio signal according to each of the sub-band band-pass signals and the processing algorithm of virtual bass enhancement signal comprises:
- obtaining a virtual bass enhancement signal according to each of the sub-band band-pass signals and a non-linear device algorithm;
- obtaining a high-frequency audio signal according to sub-band high-pass signals in the sub-band signals;
- determining a target virtual bass gain of the virtual bass enhancement signal according to a preset virtual bass gain and a maximum virtual bass gain;
- performing gain processing on the virtual bass enhancement signal based on the target virtual bass gain to obtain a bass harmonic signal;
- and
- superimposing the bass harmonic signal and the high-frequency audio signal to obtain the target audio signal.
An electronic apparatus, comprising:
- a memory storing computer-readable instructions;
- and
- a processor coupled to the memory and configured to execute the computer-readable instructions, wherein the computer-readable instructions, when executed by the processor, cause the processor to perform operations comprising:
- performing sub-band filtering on a to-be-processed audio signal to obtain a plurality of sub-band signals, and the sub-band signals comprise sub-band band-pass signals;
- and
- obtaining a target audio signal according to each of the sub-band band-pass signals and a processing algorithm of virtual bass enhancement signal, wherein obtaining the target audio signal according to each of the sub-band band-pass signals and the processing algorithm of virtual bass enhancement signal comprises:
- obtaining a virtual bass enhancement signal according to each of the sub-band band-pass signals and a non-linear device algorithm;
- obtaining a high-frequency audio signal according to sub-band high-pass signals in the sub-band signals;
- determining a target virtual bass gain of the virtual bass enhancement signal according to a preset virtual bass gain and a maximum virtual bass gain;
- performing gain processing on the virtual bass enhancement signal based on the target virtual bass gain to obtain a bass harmonic signal;
- and
- superimposing the bass harmonic signal and the high-frequency audio signal to obtain the target audio signal.
A non-transitory computer-readable medium storing computer-readable instructions that, when executed by a processor, cause the processor to perform operations comprising:
- performing sub-band filtering on a to-be-processed audio signal to obtain a plurality of sub-band signals, and the sub-band signals comprise sub-band band-pass signals;
- and
- obtaining a target audio signal according to each of the sub-band band-pass signals and a processing algorithm of virtual bass enhancement signal, wherein obtaining the target audio signal according to each of the sub-band band-pass signals and the processing algorithm of virtual bass enhancement signal comprises:
- obtaining a virtual bass enhancement signal according to each of the sub-band band-pass signals and a non-linear device algorithm;
- obtaining a high-frequency audio signal according to sub-band high-pass signals in the sub-band signals;
- determining a target virtual bass gain of the virtual bass enhancement signal according to a preset virtual bass gain and a maximum virtual bass gain;
- performing gain processing on the virtual bass enhancement signal based on the target virtual bass gain to obtain a bass harmonic signal;
- and
- superimposing the bass harmonic signal and the high-frequency audio signal to obtain the target audio signal.
Dependencies are inferred from the claim text.