Just Intervals?

[Bill Ballard]

At 11:14 PM -0400 5/9/02, Bill Ballard wrote:
>At 8:45 PM -0400 5/9/02, Jon Page wrote:
>>Is it possible to have a violinist play and read his note placement 
>>on an ETD and record their deviation >from ET and select a suitable 
>>temperament to accompany his playing?. . . Or would that be too 
>>large an >undertaking, bearing in mind playing in different key 
>>signatures.   Just a thought
>
>All that would be required is for any of the ETD engineers to 
>develop a software plug-in which could assemble a string (array, 
>actually) of digitized tone already store on disk, which could then 
>be measured for interval width, inharmonicity, partial strengths, 
>etc. The same ETD which sample the real sound could measure it. You 
>could even pull separate pitches from a fast string of notes, 
>marking them out on a greatly magnified scale (pun unavoidable).

At 11:40 AM -0700 5/10/02, Bradley M. Snook wrote:
>I was using Sound Forge 5 (it is recording software). It has a
>feature that finds the average of a selected sample, but you can also select
>a single millisecond for analysis. Vibrato is not such a huge problem: it is
>not sooooooo wide. Yes, results are given in frequencies.

At 10:17 AM -0700 5/8/02, Bradley M. Snook wrote:
>  I took the begining of the piece and ran it through a spectral 
>analysis so that I could extract each of the fundemental 
>frequiencies:

Bradley,

Boh Jon Page and myself signaled an interest in the process by which 
you derived frequencies from the sound file, but it got left behind 
in the thread. Jon suggests a particularly interesting use of such a 
technique. I did study SoundForge's web page, but the Spectrum 
Analyzer seems to be FFT-based.

I love to hear the details.

Bill Ballard RPT
NH Chapter, P.T.G.

"Lydia thinks she knows everything, and Lyle thinks he owns the place"
     ...........The outgoing staff technician to the new guy, 
concerning the resident artiste/pianist and the Chief Custodian
+++++++++++++++++++++