Multi-sensory speech detection system
First Claim
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1. A speech detection system, comprising:
- an audio microphone outputting a microphone signal based on a sensed audio input;
a speech sensor outputting a sensor signal based on a non-audio input generated by speech action; and
a speech detector component outputting a speech detection signal indicative of whether a user is speaking based on the sensor signal.
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Abstract
The present invention combines a conventional audio microphone with an additional speech sensor that provides a speech sensor signal based on an input. The speech sensor signal is generated based on an action undertaken by a speaker during speech, such as facial movement, bone vibration, throat vibration, throat impedance changes, etc. A speech detector component receives an input from the speech sensor and outputs a speech detection signal indicative of whether a user is speaking. The speech detector generates the speech detection signal based on the microphone signal and the speech sensor signal.
93 Citations
23 Claims
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1. A speech detection system, comprising:
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an audio microphone outputting a microphone signal based on a sensed audio input;
a speech sensor outputting a sensor signal based on a non-audio input generated by speech action; and
a speech detector component outputting a speech detection signal indicative of whether a user is speaking based on the sensor signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 10)
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9. The speech detection system of claim 9 wherein the comparison is performed more frequently than the baseline level is recalculated.
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11. A speech recognition system, comprising:
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a speech detection system comprising;
an audio microphone outputting a microphone signal based on a sensed audio input;
a speech sensor outputting a sensor signal based on a non-audio input generated by speech action; and
a speech detector component outputting a speech detection signal indicative of whether a user is speaking based on the microphone signal and the sensor signal; and
a speech recognition engine providing a recognition output indicative of speech in the sensed audio input based on the microphone signal and the speech detection signal. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A method of detecting speech, comprising:
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generating a first signal, indicative of an audio input, with an audio microphone;
generating a second signal indicative of facial movement of a user, sensed by a facial movement sensor; and
detecting whether the user is speaking based on the first and second signals. - View Dependent Claims (19, 20, 21, 22, 23)
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Specification