A COMPUTER IMPLEMENTED METHOD AND AN APPARATUS FOR SILENCE DETECTION IN SPEECH RECOGNITION

A COMPUTER IMPLEMENTED METHOD AND AN APPARATUS FOR SILENCE DETECTION IN SPEECH RECOGNITION

A computer implemented method for speech recognition from an audio signal includes: obtaining initial values for silence detection parameters including: a lead period; a threshold amplitude; and a terminal period. Detect an amplitude of the audio signal at a first time T1 of the audio signal. Option...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: RUUTU, Jussi, RUUTU, Ville
Format: Patent
Sprache:eng ; fin
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:A computer implemented method for speech recognition from an audio signal includes: obtaining initial values for silence detection parameters including: a lead period; a threshold amplitude; and a terminal period. Detect an amplitude of the audio signal at a first time T1 of the audio signal. Optionally adjusting the threshold amplitude based on the detected amplitude. Starting the speech recognition from a second time T2 of the audio signal. Starting silence detection from the audio signal when the lead period has elapsed after the second time T2 including: responsive to detecting an amplitude below the threshold amplitude for a duration of the terminal period, terminating the speech recognition and the silence detection at a third time T3 of the audio signal and adjusting the silence detection parameters based on the detected amplitude changes of the audio signal between the first time T1 and the third time T3.