Genetic algorithm to estimate parameters of a coarticulation model

eagle-i ID

Resource Type

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1. Resource Description

   A real-coded genetic algorithm that efficiently estimates parameters of a formant trajectory model. The genetic algorithm uses roulette-wheel selection and elitism to minimize the root mean square error between the observed formant trajectory and the model trajectory. Parameters, including vowel and consonant target values and coarticulation parameters, are estimated for a corpus of English clear and conversational CVC words. Results show consistent consonant formant targets, even when those consonants do not themselves have formant structure. We also present findings of a relationship between a coarticulation parameter and the consonant identity

2. Used by

   Center for Spoken Language Understanding

3. Software purpose

   Speech processing objective

4. Related Publication or Documentation

   Using a Genetic Algorithm to Estimate Parameters of a Coarticulation Model

5. Developed by

   Hosom, John-Paul, Ph.D.

6. Developed by

   Kain, Alexander, Ph.D.

7. Developed by

   Amano-Kusumoto, Akiko

8. Developed by

   Bush, Brian O.