Hey I know an area of research about this.
by R. Proffitt
- 3/4/12 3:03 PM
In Reply to: Multimedia computing by ramcmuth
The research was on "Speaker-specific variability of Phoneme Durations". It was very good and the conclusion was that the variation of the length of the phonemes did indeed change with the speaker!
http://www.youtube.com/watch?v=NeK5ZjtpO-M really shows it.

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