Subject: Re: exact partial frequencies in speech vowels From: beauchamp james w <j-beauch(at)UX1.CSO.UIUC.EDU> Date: Tue, 21 Jan 2003 14:03:22 -0600Martin and all, The only paper I've seen pertains to musical instruments is given below. I think harmonic exactness could deviate during vibrato, particularly in the vicinity of resonances. Brown, J. C. (1966). "Frequency ratios of spectral components of musical sounds", J. Acoust. Soc. Am., Vol. 99, 1210-1218. Jim Beauchamp