公开(公告)号：US20250149049A1

公开(公告)日：2025-05-08

申请号：US19013976

申请日：2025-01-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhuo WANG ,  Bin FENG ,  Chunhui DU ,  Fan FAN

IPC: G10L19/032 ,  G10L19/008

Abstract: This application discloses an audio signal processing method and apparatus, and belongs to the field of audio signal processing technologies. The method includes: obtaining a plurality of sub-bands of an audio signal and a scale factor of each sub-band; determining, based on the scale factors of the plurality of sub-bands, a reference value used for shaping a spectral envelope of the audio signal; and shaping the spectral envelope of the audio signal by using the reference value as a baseline, to obtain an adjustment factor of each sub-band corresponding to a shaped spectral envelope. The adjustment factor is used to quantize a spectral value of the audio signal, and/or the adjustment factor is used to dequantize a code value of the spectral value. In this application, compression efficiency of encoding an audio signal is improved while sound quality is ensured.