Level of stiffness of the bridge, is in part, due to the placement
of the sound-post inside the violin. Acoustical coupling from the 
strings to the bridge, then the bridge (the feet) coupling to the 
body, then the top body to sound-post (which mediates flexing of
the top and bottom of the cavity,... or body's stiffness).

Yeah, playing closer to the bridge has similar effects on sound in 
both violin and guitar.

This is the venue to rant about audio,.... enjoy.


-Partev


====================================================


--- peimankhosravi@gmail.com wrote:

From: peiman khosravi 
To: csound@lists.bath.ac.uk
Subject: Re: [Csnd] the "shimmer/sheen" of a violin
Date: Mon, 16 Jan 2012 11:53:09 +0000

I would have thought this is related to the string's increasing
stiffness near the bridge, although I am just guessing. Note that the
closer you move towards the bridge the more inharmonic the sound
becomes.
Warning: rant follows!
It's interesting that inharmonicity is just as much involved in all
musical sounds as harmonicity (musical sounds but not so much musical
structures). Take the transient portion for instance. Students are
still baffled when I play them a vibraphone without the attack, is it
a flute? Bowed cymbal? French Horn!?
I would suggest that reducing a complex musical sound to a temporally
invariant and purely harmonic model is a near-criminal activity :-)
Best,
Peiman

On    16   January   2012   03:17,   Partev   Barr   Sarkissian
 wrote:

  Probably the result of one kind of string rubbing against another
  kind of string, vibrations transferring into a resonating cavity,
  then out through the sound-box.
  There are some waveguide (modeling) opcodes to cover strings---
  "streson"- a string resonator
  "wgbow"- bowed string tone waveguide
  I've only briefly explored these, might be a good start. After
  that, I guess it's just finding the right filter responses to
  dial in the spectral aspects.
  -Partev
  =============================================================
  --- dennis.raddle@gmail.com wrote:
  From: Dennis Raddle 
  To: csound@lists.bath.ac.uk
  Subject: [Csnd] the "shimmer/sheen" of a violin
  Date: Sun, 15 Jan 2012 18:59:56 -0800

I'm doing some experiments with pvs analysis of instruments and
reducing them to gen10 tables which I play back with oscili. For
instance, a violin. I realize there is much inharmonic energy in the
violin. In particular, I'm interested in the beautiful sheen/shimmer
in the high harmonics. This disappears when I play it back with a

  purely harmonic spectrum... there is still high-frequency energy

there, but sounds like a power drill.
So what I'd like to know is, is there a simple model that produces
the shimmer? It doesn't have to be an exact physical model; I'm
wondering  if there is something simple that imitates it. Maybe
granular synthesis?
Dennis

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