Patent ID: 11922958
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A method comprising:
obtaining an encoding parameter of a to-be-encoded signal of a multi-channel signal, wherein the encoding parameter comprises at least one of: an encoding rate, an encoding bandwidth, a channel number, or a manner of obtaining a target line spectral frequency (LSF) parameter of the to-be-encoded signal, and the manner comprises at least one of: obtaining the target LSF parameter by quantizing an original LSF parameter of the to-be-encoded signal or obtaining the target LSF parameter through prediction;
determining, based on the encoding parameter, a parameter value corresponding to the encoding parameter;
obtaining, based on the parameter value and an energy spectrum of a linear prediction filter corresponding to the original LSF parameter of the to-be-encoded signal, a weighting factor; and
obtaining, based on the weighting factor, a spectral distortion between the original LSF parameter and a target LSF parameter.