Speech analysis apparatus for extracting glottal source paramete

Details Speech analysis apparatus for extracting glottal source paramete Speech analysis apparatus for extracting glottal source paramete

1993-06-23

1996-11-19

MacDonald, Allen R.

395 214, 395 215, 395 228, G01L 302, G01L 900

Patent

active

055771602

ABSTRACT:
An LPC analysis of a voice waveform is performed by an LPC analyzing circuit before analyzing vocal tract parameters by a vocal tract parameter analyzing circuit. The result of the analysis is converted into the components of source parameters by converting circuits and to eliminate the component of the source parameters from the voice waveform by an inverse filter. The components of the vocal tract parameters obtained by the analysis in the vocal tract parameter analyzing circuit is eliminated from the voice waveform through an inverse filter.

REFERENCES:
patent: 3649765 (1972-03-01), Rabiner et al.
patent: 4142067 (1979-02-01), Williamson
patent: 4922539 (1990-05-01), Rajasekaran et al.
A New Glottal LPC Method for Voice Coding and Filtering ALKU et al. IEEE/May 1990.
Low Bit Rate Speech Coding with Glottal Linear Prediction ALKU, IEEE/May 1990.
Evaluation of a Glottal Arma Model of Speech Production Lobo et al. IEEE/ Mar. 1992.
Excitation Synchronous Formant Analysis Wood et al. IEEE/ Apr. 1989.
Veth et al., "Robust ARMA Analysis as an aid in developing parameter control rules for a pole-zero cascade speech synthesizer", 1990 International conference on Acoustics, Speech, and Signal processing (ICASSP 90), pp. 305-308 vol. 1.
A Comparison of EEG and a New Automatic Inverse Filtering Method in Phonation Change from Breathy to Normal By Paavo Alku, Errki Vilkman and Unto K. Laine.
Fundamentals of Speech Signal Processing by Shuzo Saito and Kazuo Nakata, Nov. 30, 1981.
"A New Model for the Glottal Source Waveform and its Application to Speech Analysis" by Hiroya Fujisaki and Mats Ljungqvist, Electronic Telecommunication, vol. J72-D-II No. 8, pp. 1109-1117, 1989.
"Comparison of Errors in Formant Frequencies Obtained by Various Methods of Formant Extraction" by Hiroya Fujisaki and Yasuo Sato (Faculty of Engineering, University of Tokyo) Dec. 18, 1973.

Affiliated with

Also associated with

Rating

Speech analysis apparatus for extracting glottal source paramete does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Speech analysis apparatus for extracting glottal source paramete, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Speech analysis apparatus for extracting glottal source paramete will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-547566