公开(公告)号：WO2021248350A1

公开(公告)日：2021-12-16

申请号：PCT/CN2020/095309

申请日：2020-06-10

Applicant: QUALCOMM INCORPORATED

Inventor： WANG, Jingbin ,  BAO, Xiaoming ,  CHEN, Yu

IPC: H04M9/08 ,  H03G3/20 ,  H03G3/3089 ,  H03G3/32

Abstract: A device including one or more processors (190) configured to, based on at least one of an external criterion or a signal-based criterion, output a first gain adjusted signal from a first gain adjuster (110) or a second gain adjusted signal from a second gain adjuster (120) as an input to an audio processing operation (152). The first gain adjusted signal corresponds to a first gain applied to an audio signal from a microphone (104) and the second gain adjusted signal corresponding to a second gain applied to an audio signal from a microphone (104). The signal-based criterion is based on whether a first signal metric associated with the first gain adjusted signal or a second signal metric associated with the second gain adjusted signal is closer to a target metric.

公开(公告)号：WO2021147018A1

公开(公告)日：2021-07-29

申请号：PCT/CN2020/073882

申请日：2020-01-22

Applicant: QUALCOMM INCORPORATED ,  BAO, Xiaoming ,  WANG, Jingbin

Inventor： BAO, Xiaoming ,  WANG, Jingbin

IPC: G10L15/20

Abstract: A method performed by an electronic device is described. The method includes determining an ambient noise level based on a target audio level estimate and a noise level estimate of an audio signal. The method also includes comparing the ambient noise level with a noise threshold. The method additionally includes selecting, based on comparing the ambient noise level with the noise threshold, a verification threshold for determining whether at least a portion of the audio signal corresponds to a designated user. The method further includes determining whether to enter an active mode based on the selected verification threshold.