SYSTEM AND METHOD OF PERFORMING AUTOMATIC SPEECH RECOGNITION USING END-POINTING MARKERS GENERATED USING ACCELEROMETER-BASED VOICE ACTIVITY DETECTOR
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United States of America Patent
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Jun 21, 2016
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Jun 21, 2016
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Abstract
A method of performing automatic speech recognition (ASR) using end-pointing markers generated using accelerometer-based voice activity detector starts with a voice activity detector (VAD) generating an accelerometer VAD output (VADa) based on data output by at least one accelerometer that is included in at least one earbud. The at least one accelerometer to detect vibration of the user's vocal chords. A voice processor detects a speech signal based on acoustic signals from at least one microphone. An end-pointer generates the end-pointing markers based on the VADa output and an ASR engine performs ASR on the speech signal based on the end-pointing markers. Other embodiments are also described.
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