Time-frequency distribution of partial phonetic information measured using mutual information

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper uses the method of mutual information to estimate the distribution of partial phonetic information in the time-frequency plane relative to an acoustic landmark. TIMIT transcriptions are parsed to estimate the locations of consonant closure landmarks, consonant release landmarks, manner change landmarks, and vowel or glide pivot landmarks. A mel-scale spectrogram is computed over the 250ms centered at each landmark, and the logarithmic energy of each point in time-frequency space is linearly quantized. The phoneme label associated with a landmark determines the values of 25 binary distinctive features. Finally, coincidences between feature and spectral energy values are counted, and the average log probabilities are calculated in order to produce an "infogram" of each distinctive feature: a measurement of the mutual information between the value of the feature and the energy of each point in the time-frequency plane.

Original languageEnglish (US)
Title of host publication6th International Conference on Spoken Language Processing, ICSLP 2000
PublisherInternational Speech Communication Association
ISBN (Electronic)7801501144, 9787801501141
StatePublished - 2000
Event6th International Conference on Spoken Language Processing, ICSLP 2000 - Beijing, China
Duration: Oct 16 2000Oct 20 2000

Other

Other6th International Conference on Spoken Language Processing, ICSLP 2000
CountryChina
CityBeijing
Period10/16/0010/20/00

ASJC Scopus subject areas

  • Linguistics and Language
  • Language and Linguistics

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