ITRW on Non-Linear Speech Processing (NOLISP 03) May 20-23, 2003 Le Croisic, France

Representing Frequencies in Speech

Kuldip K. Paliwal (1), Bishnu S. Atal (2)

(1) School of Microelectronic Engineering, Griffith University, Brisbane, Australia
(2) AT&T Research Labs., Florham Park, NJ, USA

Cepstral features derived from power spectrum are widely used for automatic speech recognition. Very little work, if any, has been done in speech research to explore phase-based representations. In this paper, an attempt is made to investigate the use of phase function in the analytic signal of critical-band filtered speech for deriving a representation of frequencies present in the speech signal. Results are presented which show the validity of this approach.

Full Paper

Bibliographic reference.  Paliwal, Kuldip K. / Atal, Bishnu S. (2003): "Representing frequencies in speech", In NOLISP-2003, paper 010.