[sdiy] harmonics & vibrato

[Brendan Lynskey]

Thinking out loud, (well...in black and white), as the fingertip isn't an
infinitesimal point, could it be true that different harmonics are damped to
different degrees, depending on how close a part of the finger'pad' is to
the peaks/troughs of the harm?

And wouldn't this effect change depending on the 'phase' of the
vibrato...and so wouldn't the timbre change through each vibrato cycle?

----- Original Message -----
From: "Tim Ressel" <madhun2001 at yahoo.com>
To: "Scott Evans, Gen Mgr" <esresource at earthlink.net>
Cc: <synth-diy at dropmix.xs4all.nl>
Sent: Tuesday, December 17, 2002 10:23 AM
Subject: Re: [sdiy] harmonics & vibrato


> Hey Scott,
>
> Well, as the finger moves back and forth it shortens
> the effective length of the string. The harmonics take
> less of a fraction of the length of the strng per
> wave, so it follows that the shortening would have a
> greater effect on the harmonics. Does that sound
> right?
>
> =-= tr
>
>
> --- "Scott Evans, Gen Mgr" <esresource at earthlink.net>
> wrote:
> > Tim,
> >
> > If you think about it, the mechanics of a violin
> > vibrato is made from
> > the movement of the finger, back and forth on the
> > string. This would
> > have a similar effect on pitch as placing the finger
> > on another part of
> > the string to change the note (pitch). I would say,
> > for the most part,
> > that each harmonic maintains its relationship to the
> > fundamental as some
> > form of ratio. There may be some added components of
> > sound I am not
> > aware of in the fast movement of the vibrato.
> > Additionally, the
> > resonance of the violin body that is coupled through
> > the bridge will
> > have an effect on the relative strength of the
> > harmonics depending on
> > the particular pitch(es) being played. Any violin
> > experts out there with
> > some added insight?
> >
> > Scott
> > ----------------------------------------
> > Tim Ressel wrote:
> > > Yo,
> > >
> > > Here is a ponderance: when a violin string is
> > being
> > > played with vibrato, how are the harmonics being
> > > affected? do they change at the same frequency
> > > difference as the fundamental, or do they
> > proportional
> > > to their ratio with the fundamental?
> > >
> > > To put it another way: If the fundamental is
> > changing
> > > 1%, does the 2nd harmonic vary 1% or 2%??
> > >
> > > Thanks,
> > >
> > > --tr
> > >
> > >
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>
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