Patent ID: 11887618
Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 10:
11. The method according to claim 8, wherein the determining, for each subband in each of the audio frames, the noise estimation value comprises:
using a difference between a value one and the voice presence probability as a noise presence probability corresponding to the respective subband;
obtaining, for a current subband in a current frame currently processed in the audio frames, a noise estimation value corresponding to a historical subband with a same subband number as the current subband in a historical frame of the current frame; and
summing a first product of the noise estimation value corresponding to the historical subband and the voice presence probability corresponding to the current subband in the current frame and a second product of the subband power spectrum and the noise presence probability corresponding to the current subband in the current frame, to obtain the noise estimation value corresponding to the current subband in the current frame.