Patent · US Active

Methods and apparatus for dynamic low frequency noise suppression

US9865277B2 · kind B2 · utility

0Cited by

3References

18Claims

0Family size

Assignee

Nuance Communications, Inc. · US

Inventors

Friedrich Faubel · Ulm, DE
Patrick Hannon · Ulm, DE
Kai Wenzler · Neu-Ulm, DE

Key dates

Filing date	Jul 10, 2013
Grant date	Jan 9, 2018
Priority date	—
Expiry date	Jul 10, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG10L25/18
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Methods and apparatus for dynamically suppressing low frequency non-speech audio events, such as road bumps, without suppressing speech formants. In exemplary embodiments of the invention, maximum powers in first and second windows are computed and used to determine whether dampening should be applied, and if so, to what extent.

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