Patent · US Active

Babble noise suppression

US10783899B2 · kind B2 · utility

1Cited by

0References

22Claims

0Family size

Assignee

CERENCE OPERATING COMPANY · US

Inventors

Simon Graf · Ulm, DE
Tobias Herbig · Ulm, DE
Markus Buck · Biberach, DE

Key dates

Filing date	Nov 18, 2016
Grant date	Sep 22, 2020
Priority date	—
Expiry date	Nov 18, 2036

Classification

Technology area (CPC G)Physics
CPC primaryG10L2021/02087
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Systems and methods are introduced to perform noise suppression of an audio signal. The audio signal includes foreground speech components and background noise. The foreground speech components correspond to speech from a user's speaking into an audio receiving device. The background noise includes babble noise that includes speech from one or more interfering speakers. A soft speech detector determines, dynamically, a speech detection result indicating a likelihood of a presence of the foreground speech components in the audio signal. The speech detection result is employed to control, dynamically, an amount of attenuation of the noise suppression to reduce the babble noise in the audio signal. Further processing achieves a more stationary background and reduction of musical tones in the audio signal.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.