Speech recognition system, speech recognition method, speech synthesis system, speech synthesis method, and program product
First Claim
1. A speech recognition system comprises;
- a sound signal processor configured to acquire a sound signal from an object, and to calculate a sound signal parameter based on the acquired sound signal;
an electromyographic signal processor configured to acquire potential changes on a surface of the object as an electromyographic signal, and to calculate an electromyographic signal parameter based on the acquired electromyographic signal;
an image information processor configured to acquire image information by taking an image of the object, and to calculate an image information parameter based on the acquired image information;
a speech recognizer configured to recognize a speech signal vocalized by the object, based on the sound signal parameter, the electromyographic signal parameter and the image information parameter; and
a recognition result provider configured to provide a result recognized by the speech recognizer.
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Accused Products
Abstract
The object of the present invention is to keep a high success rate in recognition with a low-volume of sound signal, without being affected by noise.
The speech recognition system comprises a sound signal processor 10 configured to acquire a sound signal, and to calculate a sound signal parameter based on the acquired sound signal; an electromyographic signal processor 13 configured to acquire potential changes on a surface of the object as an electromyographic signal, and to calculate an electromyographic signal parameter based on the acquired electromyographic signal; an image information processor 16 configured to acquire image information by taking an image of the object, and to calculate an image information parameter based on the acquired image information; a speech recognizer 20 configured to recognize a speech signal vocalized by the object, based on the sound signal parameter, the electromyographic signal parameter and the image information parameter; and a recognition result provider 21 configured to provide a result recognized by the speech recognizer 20.
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Citations
15 Claims
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1. A speech recognition system comprises;
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a sound signal processor configured to acquire a sound signal from an object, and to calculate a sound signal parameter based on the acquired sound signal;
an electromyographic signal processor configured to acquire potential changes on a surface of the object as an electromyographic signal, and to calculate an electromyographic signal parameter based on the acquired electromyographic signal;
an image information processor configured to acquire image information by taking an image of the object, and to calculate an image information parameter based on the acquired image information;
a speech recognizer configured to recognize a speech signal vocalized by the object, based on the sound signal parameter, the electromyographic signal parameter and the image information parameter; and
a recognition result provider configured to provide a result recognized by the speech recognizer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A speech synthesis system comprising
a speech recognizer configured to recognize a speech signal; -
a sound signal acquirer configured to acquire a sound signal;
a first spectrum acquirer configured to acquire a spectrum of the acquired sound signal as a first spectrum;
a second spectrum generator configured to generate a reconfigured spectrum of the sound signal, based on the speech signal recognized by the speech recognizer, as a second spectrum;
a modified spectrum generator configured to generate a modified spectrum in accordance with the first spectrum and the second spectrum; and
an outputter configured to output a synthesized speech signal based-on the modified spectrum. - View Dependent Claims (11)
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12. A speech recognition method comprises the steps of:
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(A) acquiring a sound signal from an object, and calculating a sound signal parameter based on the acquired sound signal;
(B) acquiring potential changes on a surface of the object as an electromyographic signal, and calculating an electromyographic signal parameter based on the acquired electromyographic signal;
(C) acquiring image information by taking an image of the object, and calculating an image information parameter based on the acquired image information;
(D) recognizing a speech signal vocalized by the object, based on the sound signal parameter, the electromyographic signal parameter and the image information parameter; and
(E) providing a result recognized by the speech recognizer.
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13. The speech synthesis method comprising the steps of:
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(A) recognizing a speech signal;
(B) acquiring a sound signal;
(C) acquiring a spectrum of the acquired sound signal as a first spectrum;
(D) generating a reconfigured spectrum of the sound signal, based on the speech signal recognized by the speech recognizer, as a second spectrum;
(E) generating a modified spectrum in accordance with the first spectrum and the second spectrum; and
(F) outputting a synthesized speech signal based on the modified spectrum.
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14. A program product for recognizing a speech signal in a computer, the computer executing the steps of:
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(A) acquiring a sound signal from an object, and calculating a sound signal parameter based on the acquired sound signal;
(B) acquiring potential changes on a surface of the object as an electromyographic signal, and calculating an electromyographic signal parameter based on the acquired electromyographic signal;
(C) acquiring image information by taking an image of the object, and calculating an image information parameter based on the acquired image information;
(D) recognizing a speech signal vocalized by the object, based on the sound signal parameter, the electromyographic signal parameter and the image information parameter; and
(E) providing a result recognized by the speech recognizer.
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15. A program product for synthesizing a speech signal in a computer, the computer executing the steps of:
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(A) recognizing a speech signal;
(B) acquiring a sound signal;
(C) acquiring a spectrum of the acquired sound signal as a first spectrum;
(D) generating a reconfigured spectrum of the sound signal, based on the speech signal recognized by the speech recognizer, as a second spectrum;
(E) generating a modified spectrum in accordance with the first spectrum with the second spectrum; and
(F) outputting a synthesized speech signal based on the modified spectrum.
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Specification