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Re: Alain's note on vowel periods and subtraction
Alain's delay-subtraction model looks quite interesting and, indeed,
may solve the problem of concurrent vowel segregation in an elegant
fashion. It is, however, not intuitively clear to me how the model is
going to estimate the vowel period when the vowels are not steady-state.
If the model were true to life, it would do the job much more efficiently
for the dynamically changing f0 (and f1 through f3???) case than for
the steady-state case. If, however, it cannot deal with the problem, or
deals with it with equal or lesser efficiency than with the steady-state
vowels, then it would go down the drain, elegance notwithstanding.