Method and apparatus including microphone arrays and neural networks for speech/speaker recognition systems
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United States of America Patent
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Apr 7, 1998
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app pub date -
Mar 7, 1995
filing date -
Mar 7, 1995
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Abstract
A neural network is trained to transform distant-talking cepstrum coefficients, derived from a microphone array receiving speech from a speaker distant therefrom, into a form substantially similar to close-talking cepstrum coefficients that would be derived from a microphone close to the speaker, for providing robust hands-free speech and speaker recognition in adverse practical environments with existing speech and speaker recognition systems which have been trained on close-talking speech.
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