Speech coding, reconstruction and recognition using acoustics and electromagnetic waves
First Claim
1. A method for characterizing speech, comprising:
- directing EM radiation toward speech organs of a speaker;
detecting EM radiation scattered from the speech organs to obtain speech organ information;
detecting acoustic speech output from the speaker to obtain acoustic speech information;
combining the EM speech organ information with the acoustic speech information using a speech coding algorithm to obtain the speaker'"'"'s excitation function and speech tract transfer function.
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Abstract
The use of EM radiation in conjunction with simultaneously recorded acoustic speech information enables a complete mathematical coding of acoustic speech. The methods include the forming of a feature vector for each pitch period of voiced speech and the forming of feature vectors for each time frame of unvoiced, as well as for combined voiced and unvoiced speech. The methods include how to deconvolve the speech excitation function from the acoustic speech output to describe the transfer function each time frame. The formation of feature vectors defining all acoustic speech units over well defined time frames can be used for purposes of speech coding, speech compression, speaker identification, language-of-speech identification, speech recognition, speech synthesis, speech translation, speech telephony, and speech teaching.
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Citations
43 Claims
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1. A method for characterizing speech, comprising:
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directing EM radiation toward speech organs of a speaker; detecting EM radiation scattered from the speech organs to obtain speech organ information; detecting acoustic speech output from the speaker to obtain acoustic speech information; combining the EM speech organ information with the acoustic speech information using a speech coding algorithm to obtain the speaker'"'"'s excitation function and speech tract transfer function. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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Specification