Patent · US Active

Method for determining a noise reference signal for noise compensation and/or noise reduction

US8374358B2 · kind B2 · utility

70Cited by

1References

25Claims

0Family size

Assignee

Nuance Communications, Inc. · US

Inventors

Markus Buck · Biberach, DE
Tobias Wolff · Neu-Ulm, DE
Toby Christian Lawin-Ore · Oldenburg, DE
Samuel Ngouoko Mboungueng · Ulm, DE
Gerhard Uwe Schmidt · Ulm, DE

Key dates

Filing date	Mar 29, 2010
Grant date	Feb 12, 2013
Priority date	—
Expiry date	Feb 27, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH04R2499/13
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

The invention provides a method for determining a noise reference signal for noise compensation and/or noise reduction. A first audio signal on a first signal path and a second audio signal on a second signal path are received. The first audio signal is filtered using a first adaptive filter to obtain a first filtered audio signal. The second audio signal is filtered using a second adaptive filter to obtain a second filtered audio signal. The first and the second filtered audio signal are combined to obtain the noise reference signal. The first and the second adaptive filter are adapted such as to minimize a wanted signal component in the noise reference signal.

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