Path: utzoo!yunexus!ists!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!agate!codon4.berkeley.edu!ladasky From: ladasky@codon4.berkeley.edu (John Ladasky;1021 Solano No. 2;528-8666) Newsgroups: comp.music Subject: Re: New tunings Keywords: Intonation systems, octaves, tuning systems Message-ID: <1989Nov19.012518.23314@agate.berkeley.edu> Date: 19 Nov 89 01:25:18 GMT Article-I.D.: agate.1989Nov19.012518.23314 References: <3068@husc6.harvard.edu> <6335@merlin.usc.edu> <3113@husc6.harvard.edu> <6460@merlin.usc.edu> <3194@husc6.harvard.edu> <6540@merlin.usc.edu> Sender: usenet@agate.berkeley.edu (USENET Administrator;;;;ZU44) Reply-To: ladasky@codon4.berkeley.edu.UUCP (John Ladasky) Organization: University of California, Berkeley Lines: 24 In article <6540@merlin.usc.edu> alves@aludra.usc.edu (Bill Alves) writes: >have stiffness, no vibrating material is completely pure, etc. Even so, I think >you would find that the frequency deviation even in the piano is very small. >I have looked at the spectra of dozens of common and uncommon instruments, and >the vast majority are perfectly harmonic within the resolution of my system >(about 6 Hz). The vibraphone and marimba (after the initial attack) are not >only harmonic but almost sinusoidal. (Not so the glockenspiel, chimes, or >crotales). I'm taking a psychoacoustics and comuter music class from Dave Wessel here at U.C. Berkeley (Dave is formerly of IRCAM). My notes from the class indicate that the 29th harmonic of a typical piano has a frequency 30 times that of the first harmonic. He didn't say what string this was, but I would assume that it was a bass string, since the bass strings, so I've been told, exhibit more inharmonicity. BTW, I'm pretty sure that the spectra of the vibraphone and marimba have a lot of interesting inharmonic activity in the attack. Just my $.02. T CROSS POLICE LINE DO NOT CROSS POLICE LINE DO NOT CROSS POLICE LINE DO NOT CR _______________________________________________________________________________ "Do unto others as you would like - John J. Ladasky ("ii") to do unto them. " Richard Bach (ladasky@enzyme.berkeley.edu)