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.
申请公布号
WO2014070139(A2)
申请公布日期
2014.05.08
申请号
WO2012US62549
申请日期
2012.10.30
申请人
NUANCE COMMUNICATIONS, INC.
发明人
KRINI, MOHAMED;SCHALK-SCHUPP, INGO;HANNON, PATRICK