A method, device and medium for improving audio quality

Abstract

The invention discloses a method, a device and a readable storage medium for improving audio quality. The method comprises the following steps: receiving audio data and storing it in a CPU cache; judging whether there is remaining space in the CPU cache; responding to the absence of remaining space in the CPU cache , store the audio data in the SSD cache; determine whether the total voice traffic stored in the SSD cache is less than the first threshold for voice transmission over the network link; in response to the total voice traffic stored in the SSD cache being less than the first threshold for voice transmission over the network link , judging whether the delay is less than the second threshold; and in response to the delay not being less than the second threshold, reducing the size of the SSD cache to reduce the delay. The method, device and medium for improving audio quality proposed by the present invention design multi-level caches, and dynamically adjust the size of the second-level cache according to the voice delay, the flow of uplink and downlink voices and the compression of voice, so as to ensure the quality of voice jitter and the quality of voice. The overall performance of the delay is the best, thus maximizing the audio quality.

Description

technical field [0001] The present invention relates to the field of signal transmission, more specifically, to a method, device and readable medium for improving audio quality. Background technique [0002] In video conferencing systems, audio quality is critical. When voice data is transmitted in the network environment, there may be a delay, and the delay of the network will also change in different periods of time. This change in network delay will cause jitter, and the jitter will cause audio quality distortion and intermittent . Therefore, all video conferencing systems need to perform audio anti-jitter processing. The traditional audio anti-jitter technology is to build a buffer area to save data for a long enough time, so that the slowest data packets can arrive in time before the audio is restored, thereby eliminating the adverse effects of delay. The larger the amount of data in the buffer area , the greater the degree of data jitter the receiving end can withst...

AI Technical Summary

Problems solved by technology

The traditional audio anti-jitter technology is to build a buffer area to save data for a long enough time, so that the slowest data packets can arrive in time before the audio is restored, thereby eliminating the adverse effects of delay. The larger the amount of data in the buffer area , the greater the degree of data jitter the receiving end can withstand, but the greater the corresponding delay

Therefore, although the traditional voice anti-jitter method solves the audio jitter elimination, it increases the fixed processing delay time, and cannot adjust the delay time with the jitter change of the network data.

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