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Improved Speech Recognition in Noisy Environments by Using a Throat Microphone for Accurate Voicing Detection Authors: T. Dekens, W. Verhelst, F. Capman and F. Beaugendre Publication Date: Aug. 2010 Pages: 1978-1982
Abstract: In this paper we show that microphones that capture the
bone-conducted voice can be used to improve Automatic
Speech Recognition in noisy environments. These microphones
exhibit good noise rejection properties and their
signals are therefore good indications of speech activity,
even in very noisy conditions. We conducted experiments
where we used a throat microphone signal as a Voice Activity
Detection (VAD) input signal and found that recognition
accuracies in non-stationary noise improve significantly
compared to when VAD is executed on a conventional microphone
signal.
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