ETD Unisons was something else

Richard Brekne Richard.Brekne@grieg.uib.no
Fri, 23 Mar 2001 19:49:59 +0100


Don and others...

Wanted to get back to this before taking off for the first part of the weekend.
I gotta admit I am a bit thoughtfull about whats been said so far.  If the ETD
sees two strings that have clean partials for the partial being used, whats the
problem ?? Why would an ETD have any problem resolving that at all ? Ok, you
have to go back and forth a bit to deal with changes in pitch due to coupling,
but as long as there is no falsness coming from any strings at the relavant
partial then you should think there would be no problem getting a phase display
to come clean. You end up sort of tuning the note relevant to its spot in the
tuning curve and the unison itself at the same time... kinda similiar to the
descriptions I have heard about how Virgil handles his unisons / octaves.

It would seem to me that tuning one string at a time is just asking for
problems. For one you have to guess a bit at any pitch change due to coupling.
For the second any falsness that is present in either string is going to present
exactly the same problem (or perhaps even a bit worse ) to the phase display.

In anycase my experience with tuning unisons with Tunelab or Cyberear tell me
that the major problem with doing this is not so much that its difficult to get
a good match on the partial being read, quite the opposite.. that one doesnt
have any way of taking into consideration the behaviour of the rest of the
envelope.


Have a good weekend folks.


--
Richard Brekne
RPT, N.P.T.F.
Bergen, Norway
mailto:Richard.Brekne@grieg.uib.no




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