[sdiy] Jean-Claude Risset, Shephard etc.

[Sean Costello]

A good tool for creating such paradoxical sounds in the analog domain is a
frequency shifter. By feeding the output of the frequency shifter back into
the input, with a very low amount of shift, you get phasing effects that
always cycle upward (or downward), which is a filtering effect that is very
similar to the endless glissando Risset generates.

The frequency shifter trick works in the digital domain, as well. I have
added frequency shifter tools to Csound, Reaktor, and Supercollider, and
such tools are also available in MAX/MSP and PureData.

Sean Costello


----- Original Message ----- 
From: "anthony" <aankrom at bluemarble.net>
To: <synth-diy at dropmix.xs4all.nl>
Sent: Monday, February 28, 2005 7:26 PM
Subject: [sdiy] Jean-Claude Risset, Shephard etc.


> So I was reading a little about the work of Jean-Claude Risset and I was
> wondering if anyone knew of some cool free(ish)ware to generate those
> patterns. I'm still digging. Maybe I'll find something. But I was thinking
> maybe it would be cool if one could do it in the analogue domain. It sure
> seems possible with te right kind of modules patched.
>
> Just a quick explanation to anyone who has no clue what I'm talking about
> (keeping in mind that /I/ don't know what I'm talking about.) It's the
> sounds generated by certain repetitive patterns. This is a gross
> oversimplification. Anothier thing is illusory sounds kind of like
Shephard
> tones.
>
>