FAR FIELD AUTOMATIC SPEECH RECOGNITION PRE-PROCESSING

FAR FIELD AUTOMATIC SPEECH RECOGNITION PRE-PROCESSING

System and techniques for automatic gain control for speech recognition are described herein. An audio signal may be obtained. A signal-to-noise ratio (SNR) may be derived from the audio signal. The SNR may be compared to a threshold. A stored gain value may be updated when the SNR is beyond the thr...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MAZIEWSKI, Przemyslaw, KURYLO, Lukasz, KUPRYJANOW, Adam
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ACOUSTICS
MUSICAL INSTRUMENTS
PHYSICS
SPEECH ANALYSIS OR SYNTHESIS
SPEECH OR AUDIO CODING OR DECODING
SPEECH OR VOICE PROCESSING
SPEECH RECOGNITION
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Beschreibung
Zusammenfassung:System and techniques for automatic gain control for speech recognition are described herein. An audio signal may be obtained. A signal-to-noise ratio (SNR) may be derived from the audio signal. The SNR may be compared to a threshold. A stored gain value may be updated when the SNR is beyond the threshold and the stored gain value may be applied to a descendant (e.g., later) of the audio signal otherwise.