Method of and device for deriving formant frequencies using a Sp

Details Method of and device for deriving formant frequencies using a Sp Method of and device for deriving formant frequencies using a Sp

1987-12-04

1990-07-31

Harkcom, Gary V.

Electrical audio signal processing systems and devices

Monitoring/measuring of audio devices

Loudspeaker operation

G10L 904

Patent

active

049455680

ABSTRACT:
A method of and a device for deriving formant frequencies from a part of a speech signal. For determining the formant frequencies from a part of a speech signal located within a given time interval, the Split Levinson algorithm is used. In the Split Levinson algorithm a higher order singular predictor polynomial (P.sub.k (z)) is each time determined in successive recursion steps. After the last recursion step the formant frequencies (f.sub.1, f.sub.2, . . . ) are determined.

REFERENCES:
patent: 4346262 (1982-08-01), Willems et al.
patent: 4477925 (1984-10-01), Avery et al.
Delsarte et al., "The Split Levinson Algorithm", IEEE Trans. on ASSP , vol ASSP-34, No. 3, 6/86, pp. 470-478.

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