Speech coding, reconstruction and recognition using acoustics and electromagnetic waves
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. 35 figs.
- Research Organization:
- Univ. of California (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-48
- Assignee:
- Univ. of California, Oakland, CA (United States)
- Patent Number(s):
- US 5,729,694/A/
- Application Number:
- PAN: 8-597,589; TRN: 98:004645
- OSTI ID:
- 597138
- Resource Relation:
- Other Information: PBD: 17 Mar 1998
- Country of Publication:
- United States
- Language:
- English
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Methods and apparatus for non-acoustic speech characterization and recognition
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