Variability of the consonant modulation spectrum across individual talkers


  • Pamela Souza Dept. of Speech and Hearing Sciences, University of Washington, 1417 NE 42nd Street, Seattle, WA 98105, United States
  • Frederick Gallun National Center for Rehabilitative Auditory Research, Portland VA Medical Center, 3710 SW US Veterans' Hospital Road, Portland, OR 97239, United States


Vectors, Modulation spectrums, Single vectors, Spectral correlations, Speech recordings


The variability of consonant modulation spectra across individual talker was investigated. Speech recordings were drawn from a database which included adult male and female, and child male and female talkers. Each talker produced the same set of vowel-consonant-vowel tokens. Each phoneme was represented by a matrix of thirty-six values. Spectral Correlation Index (SCI) values were calculated across subsets of the stimulus set. The SCI between two signals was obtained by concatenating the 36 modulation spectrum values into a single vector and correlating the vectors. Results indicated that the modulation spectrum for a single VCV token was very similar across talkers. It was also observed that the SCI values for all talkers are 0.9 or higher.



How to Cite

Souza P, Gallun F. Variability of the consonant modulation spectrum across individual talkers. Canadian Acoustics [Internet]. 2008Sep.1 [cited 2021Apr.13];36(3):116-7. Available from:



Proceedings of the Acoustics Week in Canada