EUROSPEECH 2003 - INTERSPEECH 2003
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.
Bibliographic reference. Paliwal, Kuldip K. / Atal, Bishnu S. (2003): "Frequency-related representation of speech", In EUROSPEECH-2003, 65-68.