Automatic epoch extraction for closed-phase analysis of speech

Author

Kounoudes, Anastasis ; Naylor, P.A. ; Brookes, M.

Author_Institution

Dept. of Electron. & Electr. Eng., Imperial Coll., London, UK

Volume

2

fYear

2002

fDate

2002

Firstpage

979

Abstract

This paper presents an automatic method to determine the instants of glottal closure (GCIs), or epochs, from the speech signal alone without the need of a laryngograph signal. The proposed algorithm incorporate a new technique for estimating GCI candidates and dynamic programming to select the best candidates according to predefined cost functions. Results show accuracy in estimation to within ±0.25ms on 87% of the test database and less that 1% false alarms and misses. Preliminary experiments using the telephone -degraded NTIMIT database have shown that the algorithm continues to perform well even in the presence of noise.

Keywords

dynamic programming; feature extraction; speech processing; automatic epoch extraction; automatic method; closed-phase speech analysis; cost functions; dynamic programming; estimation accuracy; false alarms; glottal closure instants estimation; laryngograph signal; speech processing; speech signal; telephone -degraded NTIMIT database; test database; Cost function; Databases; Delay estimation; Dynamic programming; Educational institutions; Larynx; Linear predictive coding; Phase estimation; Speech analysis; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Digital Signal Processing, 2002. DSP 2002. 2002 14th International Conference on

Print_ISBN

0-7803-7503-3

Type

conf

DOI

10.1109/ICDSP.2002.1028254

Filename

1028254