Audio signal processing method, device, electronic device and storage medium

Abstract

The invention discloses an audio signal processing method, device, electronic equipment and storage medium, belonging to the field of network technology. The method includes: determining a pitch signal of the audio signal to be processed; marking multiple candidate periods of the pitch signal to obtain multiple signal segments of the pitch signal; performing correlation based on the multiple signal segments performance calculation, determining multiple periods of the pitch signal; and performing tone modulation processing on the audio signal according to the multiple periods of the pitch signal. In the present invention, the pitch signal is obtained by filtering the audio signal to be processed, and the pitch signal is segmented by marking the candidate period of the pitch signal, and then the correlation calculation is performed on the multiple signal segments, and the pseudo-period is eliminated to obtain more Accurate pitch signal period, and then based on the accurate period to transpose the audio signal, can improve the accuracy of tone transposition processing.

Description

technical field [0001] The present invention relates to the field of network technology, in particular to an audio signal processing method, device, electronic equipment and storage medium. Background technique [0002] With the development of network technology and the diversification of terminal functions, people can record through the terminal, and use audio signal processing methods to transpose the recording to produce various sound effects. For example, people can record on the terminal, and through operations on the terminal, the recording is tuned up, and the recording originally in the key of E is adjusted to the recording in the key of A. [0003] The current audio signal processing method is to obtain the pitch signal by filtering the audio signal, and then directly use the intersection point of the waveform of the pitch signal and the time coordinate axis as a periodic mark point, the signal direction of the intersection point is consistent, and then according to...

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Problems solved by technology

[0006] The embodiment of the present invention provides an audio signal processing method, device, electronic equipment and storage medium, which can solve the problem of inaccurate modulation processing in the prior art

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