[sdiy] Truly white noise

synth at oldmail.charlielamm.com synth at oldmail.charlielamm.com
Fri Jun 25 19:38:59 CEST 2004


Well, lots of folks have made noise generators out of transistors, diodes,
2N76477's, etc etc. I am trying to do things a different way, just to
see what I stumble upon.  


On Fri, 25 Jun 2004, Scott Gravenhorst wrote:

> <synth at oldmail.charlielamm.com> wrote:
> >I was wondering if any DIYer has used a FM tuner or AM tuner as a noise
> >source.  I believe there are fairly monolithic IC's to do this so it could
> >possibly be done with low parts count (or, you could plug your home stereo
> >into your synth, tuned between stations, but that might be a bit
> >inelegant?)
> >
> >And maybe include CV control to sweep through a range of frequencies.  
> 
> I'm curious why you would want to do this... ?  At the very least, if you go out
> on gigs, you might have to retune the system.  Why isn't a good LFSR or good
> diode noise source sufficient?  Either one can be built from dirt cheap parts,
> the LFSR type is easily in the $2.00 or less range.  And the noise spectrum can
> be limit and customized with filters to get the sound you want.
> 
> >On Thu, 24 Jun 2004 Robotboy8 at aol.com wrote:
> >
> >> *Most people only need something that sounds like white noise.  For instance, 
> >> a detuned radio.  No, it isn't white, but it sounds good enough to mix with a 
> >> VCO before filtering.
> >> 
> >
> 
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