公开(公告)号：US20250037733A1

公开(公告)日：2025-01-30

申请号：US18360936

申请日：2023-07-28

Applicant: Cisco Technology, Inc.

Inventor： Chamran MoradiAshour ,  Samir Ouelha

IPC: G10L25/21 ,  G10L25/84 ,  H04M9/08

Abstract: A method comprises: detecting audio to produce audio frames; detecting whether voice is continuously present across multiple consecutive ones of the audio frames based on voice activity detection performed on the audio frames; computing a signal-to-noise ratio (SNR) of an audio frame of the audio frames; determining whether to bypass or not bypass background noise removal (BNR) on the audio frame based on whether the voice is continuously present and the SNR; upon determining to bypass the BNR, bypassing the BNR on the audio frame, and first encoding the audio frame to produce a first encoded audio frame; upon determining to not bypass the BNR, performing the BNR on the audio frame to produce a reduced-noise audio frame, and second encoding the reduced-noise audio frame to produce a second encoded audio frame; and transmitting the first encoded audio frame or the second encoded audio frame.