Audio encoding method and device, audio decoding method and device, and encoding and decoding system

Abstract

The embodiment of the invention discloses an audio encoding method and device, an audio decoding method and device, and an encoding and decoding system, which can improve the anti-packet loss performance in the audio data transmission process. The methods are applied to the audio encoding and decoding system comprising at least two sound channels, and comprise the steps as follows: audio data of N sound channels is acquired; the acquired audio data of the N sound channels is processed through sound channel interlacing packing to obtain data packets; each data packet comprises X*N sections of the audio data, wherein X is a specific value of the number of the audio data in one data packet and the number of the audio data in one audio frame, and X is an integer that is more than or equals to 1; in the X*N sections of the audio data, and at least X+1 sections of the audio data belong to different audio frames. The embodiment of the invention also provides the audio decoding method, the related device, and the encoding and decoding system. The embodiment of the invention can effectively improve the anti-packet loss performance in the audio data transmission process.

Description

Technical field [0001] The present invention relates to the field of data processing, in particular to an audio coding method and device, an audio decoding method and device, and a coding and decoding system. Background technique [0002] Video-information technology realizes the long-distance transmission of information such as voice, image, data, etc., so that people can use video-information technology to hear the other party’s voice and see the other party’s moving images and film content when communicating in different places. Enhance the intimacy and presence of remote communication. [0003] The video conference system generally consists of a multipoint control unit (MCU, Multipoint Control Unit) and a terminal. In a video conference, each terminal corresponds to a conference site, and the sound and images of each conference site are collected and encoded and sent to the MCU. The MCU processes the sound and image in a certain way (sound mixing, image forwarding or forming ...

AI Technical Summary

Problems solved by technology

[0011] In the solution of the above-mentioned prior art, each data packet corresponds to one or more audio frames, and all the audio data of these audio frames are compiled into the same data packet, that is to say, if a data packet is lost, then The audio data of all channels on all the corresponding audio frames will be lost. If the audio data changes greatly between different audio frames, it will be difficult for the decoding terminal to achieve better results when using the front and back audio frames for audio data recovery, thus Reduced anti-packet loss performance during audio data transmission

Images