Coding/decoding method, system and apparatus

摘要

An encoding method includes: extracting core layer characteristic parameters and enhancement layer characteristic parameters of a background noise signal, encoding the core layer characteristic parameters and enhancement layer characteristic parameters to obtain a core layer codestream and an enhancement layer codestream. The disclosure also provides an encoding device, a decoding device and method, an encapsulating method, a reconstructing method, an encoding-decoding system and an encoding-decoding method. By describing the background noise signal with the enhancement layer characteristic parameters, the background noise signal can be processed by using more accurate encoding and decoding method, so as to improve the quality of encoding and decoding the background noise signal.

主权项

1. An encoding method, comprising:
extracting core layer characteristic parameters and enhancement layer characteristic parameters of a background noise signal; encoding the core layer characteristic parameters and enhancement layer characteristic parameters to obtain a core layer codestream and an enhancement layer codestream; and dividing the background noise signal into a lower band background noise signal and a higher band background noise signal; wherein extracting the core layer characteristic parameters and enhancement layer characteristic parameters of the background noise signal comprises: extracting the core layer characteristic parameters of the lower band background noise signal and extracting the higher band enhancement layer characteristic parameters of the higher band background noise signal.