Patent · US Active

System enhancement of speech signals

US8050914B2 · kind B2 · utility

11Cited by

2References

20Claims

0Family size

Assignee

Nuance Communications, Inc. · US

Inventors

Gerhard Uwe Schmidt · Ulm, DE
Mohamed Krini · Ulm, DE

Key dates

Filing date	Nov 12, 2008
Grant date	Nov 1, 2011
Priority date	—
Expiry date	Mar 14, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH04R2499/13
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A system enhances speech by detecting a speaker's utterance through a first microphone positioned a first distance from a source of interference. A second microphone may detect the speaker's utterance at a different position. A monitoring device may estimate the power level of a first microphone signal. A synthesizer may synthesize part of the first microphone signal by processing the second microphone signal. The synthesis may occur when power level is below a predetermined level.

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