3 Mar
2010
3 Mar
'10
5:23 a.m.
2010/2/25 <fons(a)kokkinizita.net>et>:
On Thu, Feb 25, 2010 at 06:30:02PM +0000, andy baxter
wrote:
There's also a rhythmic variant of Shepard tones called Risset
accelerando. This page has supercollider code to generate one from a
recorded beat, as well as an MP3 recording:
http://swiki.hfbk-hamburg.de:8888/MusicTechnology/826
When I read the OP I thought of this since it's a kind of self-similar
structure so might be thought of as fractal...
Dan
(Actually the code would probably do shepard tones as well as risset
rhythms, if you just feed it a constant tone as audio input)
Hope this makes sense? Apparently it sounds like
a never ending rising
scale.
It does. It works best if you use a dense set of notes moving
over a range of several octaves. With just one or a few the
fade-ins/outs at the start/end are quite apparent.
If anyone knows of a recording of this, I would
be interested to hear
it; if not I might have a go at making one.
I once made such a thing, it's fairly easy using Csound
or similar. You just need a note that moves up (or down)
at a constant speed, with a fade-in at the start and a
fade-out at the end, then make it loop, then start a large
number of these at different positions in the cycle.