Audio processing method and device, terminal, storage medium and program product

Abstract

The invention discloses an audio processing method and device, a terminal, a storage medium and a program product. The method comprises the following steps: acquiring an audio signal acquired by a microphone array of a terminal, wherein the microphone array comprises at least one microphone; performing HOA coding on the audio signal according to the filter bank corresponding to each HOA channel; wherein one HOA channel corresponds to one filter bank, the filter coefficient of the filter bank is obtained by splicing at least one first matrix, and one first matrix is constructed based on the impulse response of one microphone to the plane wave from one direction. According to the embodiment of the invention, a time domain optimization problem capable of covering all training directions is constructed to determine the filter coefficient, and the filter coefficient of the filter bank is obtained by splicing at least one first matrix, so that HOA coding is realized.

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