Random Delay

[sylnau]

these are fun (i've got the DML-20)
[youtube]http://www.youtube.com/watch?v=ex95BFnCwQQ[/youtube]

Is this the same as the Maxon 'Multi-mode Delay' DM-01?

[multi_s]

I think it would require some kind of digital controller to randomly set the delay time. You can use some kind of LFO, but you'll get pitch bends as the delay time itself is modulated.

you could use a s&h in place of the LFO, though you'll most likely still get some bending/portamento between times depending on what type of control you use. i've been thinking about this for a looooong time...

thats almost what the p(fax) is if you use a pt2399 as the delay element. i found adding more repeats muddied the definition of the random pitches especially when you start getting noise form the pt2399. so i did not use any feedback and there is no repeats.

you can do it without digital control, although that might give you more options. i just used a noise generator and a S/H circuit at the gate of a JFET set up as a VCR on the pt2399 clock pin. instant free jazz.

heres the old demos if you want to hear the results.

http://www.youtube.com/watch?v=nYO3GuSXH7A
http://www.youtube.com/watch?v=oiLz095qGxQ

there's some shots of the "lfo" on a scope at the top of this post and a lot of links to info on generating "truly random" noise via analog means.
http://mtlasm.blogspot.com/2009/01/sh-to-mouchous.html

[smallsnd/bigsnd]

I think it would require some kind of digital controller to randomly set the delay time. You can use some kind of LFO, but you'll get pitch bends as the delay time itself is modulated.

you could use a s&h in place of the LFO, though you'll most likely still get some bending/portamento between times depending on what type of control you use. i've been thinking about this for a looooong time...

thats almost what the p(fax) is if you use a pt2399 as the delay element. i found adding more repeats muddied the definition of the random pitches especially when you start getting noise form the pt2399. so i did not use any feedback and there is no repeats.

you can do it without digital control, although that might give you more options. i just used a noise generator and a S/H circuit at the gate of a JFET set up as a VCR on the pt2399 clock pin. instant free jazz.

heres the old demos if you want to hear the results.

http://www.youtube.com/watch?v=nYO3GuSXH7A
http://www.youtube.com/watch?v=oiLz095qGxQ

there's some shots of the "lfo" on a scope at the top of this post and a lot of links to info on generating "truly random" noise via analog means.
http://mtlasm.blogspot.com/2009/01/sh-to-mouchous.html

very interesting!
i had a feeling that added repeats would fuck things up - i assume it just gets real hash-y?
the approach you used is exactly what i was thinking about, though i'm more interested in it as a subtle effect as a part of the delay, rather than a whole new effect onto itself.
"truly random" is a deep subject, without a doubt...