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Re: microvariations

|    Does anyone know of any research on the microvariations that occur in sung
|    tones and musical instrument tones (without vibrato)?  I am looking for
|    to characterize these variations.
|    Jim Beauchamp
|    j-beauch@uiuc.edu

I've done some work on viola sounds by pitch tracking and then getting
a standard deviation based on a value every few ms.  Let me know if
you get any other replies; I'm real interested.