Noisy noise generator

[Scott Gravenhorst]

Noise can be interesting as a modulation source, eg. mix some
noise with a pitch CV to a VCO.  I'm sure there are others.

"Jon Darby" <jdarby at lplizard.com> wrote:
>Just out of curiousity, what is noise good for other than synthesizing wind
>and wave crashes? The noise on my Moog Rogue is God-aweful that I'm thinking
>about disabling that and inserting a looping playback circuit of Tom Jones
>singing "It's Not Unusual". Hey, that's not such a bad idea. A Tom Jones
>slider on my Rogue. Please, somebody convince me that noise is worth
>keeping. What synths/modules have really good noise and what are some noise
>techniques to create, I don't know, the best noise? Thank you for
>entertaining such a lamo question.
>
>Your pal,
>Jon Darby
>
>
>-----Original Message-----
>From: Tony Allgood <oakley at techrepairs.freeserve.co.uk>
>To: synth-diy at node12b53.a2000.nl <synth-diy at node12b53.a2000.nl>
>Date: Wednesday, October 18, 2000 1:49 PM
>Subject: Re: Noisy noise generator
>
>
>>I have just been trying to get a decent noise generator for one of my
>>modules. I tried all sorts of designs and in the end I came up with the
>>classic reversed biased transistor. I tried zeners, even noise diodes,
>>and I found that the best noise was a BC549. Circuit to come later...
>>although there's nothing new here.
>>
>>But the weirdest thing was that I really liked the noise coming out of a
>>10V 300mW zener. Good level and clear sound with no popping. I tried a
>>whole load of them, from different batches too, and I was very
>>impressed. So the next day, I tried a few more just to be sure. Odd...
>>all noise levels were seriously down on the previous night's. And it
>>varied over a period of a few minutes. Pseudo random sequences from a
>>diode?? :-) The I got it... as the sun went behind a cloud the noise
>>increased. In the dark, it went very high, almost three times the peak
>>value. I thought about painting them black or even using larger devices
>>in the epoxy cases... but the BC548s beckoned. UV light must be the key
>>here...
>>
>>Regards,
>>
>>Tony Allgood  Penrith, Cumbria, England
>>
>>Oakley Modular Synth and TB3030:
>>www.techrepairs.freeserve.co.uk/projects.htm
>>My music: www.mp3.com/taklamakan
>>
>>
>

-- Scott Gravenhorst : On The Edge, but the Edge of What?
-- Linux Rex, Linux Vobiscum  |  RedWebMail by RedStarWare
-- FatMan: www.teklab.com/~chordman
-- NonFatMan: members.xoom.com/_XMCM/chordman/index.html
-- The 21st century does NOT start in the year 2000!!!