Patent ID: 9728195
Date: 2017-08-08
CPC Classifications: G10L

Claim:
1. A noise signal processing method, comprising: obtaining, by an encoder comprising a processor, a linear prediction coefficient according to an acquired noise signal corresponding to an audio signal; filtering, by the encoder, the noise signal according to the linear prediction coefficient to obtain a linear prediction residual signal; obtaining, by the encoder, a spectral envelope of the linear prediction residual signal according to the linear prediction residual signal; obtaining a spectral detail of the linear prediction residual signal according to the spectral envelope of the linear prediction residual signal; quantizing, by the encoder, the spectral envelope of the linear prediction residual signal; quantizing, by the encoder, the spectral detail of the linear prediction residual signal; and writing, by the encoder, the quantized spectral envelope of the linear prediction residual signal and the quantized spectral detail of the linear prediction residual signal into a bitstream for storing or transmitting.