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Methods and apparatus for non-acoustic speech characterization and recognition

Patent ·
OSTI ID:872779
 [1]
  1. Berkeley, CA
+ Show Author Affiliations

By simultaneously recording EM wave reflections and acoustic speech information, the positions and velocities of the speech organs as speech is articulated can be defined for each acoustic speech unit. Well defined time frames and feature vectors describing the speech, to the degree required, can be formed. Such feature vectors can uniquely characterize the speech unit being articulated each time frame. The onset of speech, rejection of external noise, vocalized pitch periods, articulator conditions, accurate timing, the identification of the speaker, acoustic speech unit recognition, and organ mechanical parameters can be determined.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA
DOE Contract Number:
W-7405-ENG-48
Assignee:
Regents of University of California (Oakland, CA)
Patent Number(s):
US 6006175
OSTI ID:
872779
Country of Publication:
United States
Language:
English

References (9)

Inferring articulation and recognizing gestures from acoustics with a neural network trained on x‐ray microbeam data journal August 1992
Advances in speech and audio compression journal June 1994
Techniques for estimating vocal-tract shapes from the speech signal journal January 1994
Speech Analysis and Synthesis by Linear Prediction of the Speech Wave journal August 1971
Cepstral analysis technique for automatic speaker verification journal April 1981
Applications of voice processing to telecommunications journal January 1994
An evaluation of an alternating magnetic field device for monitoring tongue movements journal August 1990
The Activity of the Intrinsic Laryngeal Muscles in Voicing Control journal May 1972
A model of articulatory dynamics and control journal January 1976

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