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Variability of the consonant modulation spectrum across individual talkers

Canadian Acoustical Association / Association canadienne d'acoustique
Publication Date
  • Modulation
  • 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.

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