METHOD AND APPARATUS FOR VOICE ACTIVITY DETERMINATION

In accordance with an example embodiment of the invention, there is provided an apparatus for detecting voice activity in an audio signal. The apparatus comprises a first voice activity detector (6b) for making a first voice activity detection decision (D2) based at least in part on the voice activi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	VALVE, Paivi Marianna, NIEMISTO, Riitta Elina
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACOUSTICS ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING MUSICAL INSTRUMENTS PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION SPEECH ANALYSIS OR SYNTHESIS SPEECH OR AUDIO CODING OR DECODING SPEECH OR VOICE PROCESSING SPEECH RECOGNITION TESTING
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Beschreibung
Zusammenfassung:	In accordance with an example embodiment of the invention, there is provided an apparatus for detecting voice activity in an audio signal. The apparatus comprises a first voice activity detector (6b) for making a first voice activity detection decision (D2) based at least in part on the voice activity of a first audio signal (A1) received from a first microphone (1a). The apparatus also comprises a second voice activity detector (6a) for making a second voice activity detection decision (D1) based at least in part on an estimate of a direction of the first audio signal (A1) and an estimate of a direction of a second audio signal (A2) received from a second microphone (1b). The apparatus further comprises a classifier (6c) for making a third voice activity detection decision (D3) based at least in part on the first and second voice activity detection decisions.