Audio data processing method, device, computer equipment and storage medium

Abstract

The application relates to an audio data processing method and device, a piece of computer equipment and a storage medium. The method includes the following steps: acquiring first audio data; interpolating the first audio data to obtain interpolated audio data; writing the interpolated audio data into a data buffer; acquiring reference audio data when the data volume of characteristic audio data meets preset conditions; finding the specific position of the characteristic audio data in the data buffer according to the reference audio data; weighting and superimposing the reference audio data and the characteristic audio data with the specific position as the starting point in the data buffer to obtain superimposed audio data; replacing the characteristic audio data in the data buffer with the superimposed audio data; extracting second audio data in the data buffer after replacement; and outputting the second audio data in the data buffer. By using the method, sound cannot be amplified by feedback at a certain frequency to form a scream, and an effect of scream suppression is achieved.

Description

technical field [0001] The present application relates to the field of computer technology, in particular to an audio data processing method, device, computer equipment and storage medium. Background technique [0002] The sound is continuously amplified and fed back to form a howling phenomenon. There are many ways to prevent or deal with howling in the existing technology, for example, based on frequency search and then filtering to prevent howling; or adopting a method similar to echo cancellation for path estimation to prevent howling; or based on Hilbert frequency shift to prevent Howling. [0003] If it is based on frequency search and then filtering to prevent howling, on a small system with a small CPU available bandwidth and a small system RAM (Random Access Memory, random access memory), use the notch method to make howling Inhibition, if the frequency search is required to be fine, a relatively fine frequency search is required, which requires high system requir...

AI Technical Summary

Problems solved by technology

Otherwise, the filter diverges and cannot achieve the effect

Since the above method has the requirement to analyze the length of the data, it will bring a certain delay and affect the sense of hearing.

[0005] However, to prevent howling through Hilbert frequency shifting, the selection of the analysis length is too short, and the frequency shifting ratio is too large, so the auditory effect cannot meet the requirements.

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