Voice de-reverberation method and system based on MCLP

The invention relates to the technical field of voice signal processing, in particular to a voice de-reverberation method and system based on MCLP. The method comprises the following steps: carrying out framing data processing on collected reverberation voice of a reverberation environment to obtain...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: FENG ZICHENG, MA HONGFEI
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention relates to the technical field of voice signal processing, in particular to a voice de-reverberation method and system based on MCLP. The method comprises the following steps: carrying out framing data processing on collected reverberation voice of a reverberation environment to obtain an expected signal of a current frame; acquiring a voice reverberation energy ratio and a signal-to-noise estimation value of the desired signal, and substituting the voice reverberation energy ratio and the signal-to-noise estimation value into a geometric spectral subtraction formula to perform spectral subtraction on the reverberation voice to obtain a first power spectral density of the desired signal, wherein the voice reverberation energy ratio is in positive correlation with a first energy ratio of the reverberation voice to the reverberation component, and the signal-to-noise estimation value is in positive correlation with a second energy ratio of the expected voice to the reverberation component; accordi