Patent · US Active

Speech enhancement

US9613633B2 · kind B2 · utility

2Cited by

66References

20Claims

0Family size

Assignee

Nuance Communications, Inc. · US

Inventors

Mohamed Krini · Ulm, DE
Ingo Schalk-Schupp · Ulm, DE
Patrick Hannon · Ulm, DE

Key dates

Filing date	Oct 30, 2012
Grant date	Apr 4, 2017
Priority date	—
Expiry date	Oct 30, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG10L19/04
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A speech signal processing system is described for use with automatic speech recognition and hands free speech communication. A signal pre-processor module transforms an input microphone signal into corresponding speech component signals. A noise suppression module applies noise reduction to the speech component signals to generate noise reduced speech component signals. A speech reconstruction module produces corresponding synthesized speech component signals for distorted speech component signals. A signal combination block adaptively combines the noise reduced speech component signals and the synthesized speech component signals based on signal to noise conditions to generate enhanced speech component signals for automatic speech recognition and hands free speech communication.

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