[sdiy] Popcorn Noise Generator?

[harrybissell]

afaik, real popcorn noise would not have all pops of the same amplitude.

I don't think the blinky neon would work either, that would really be more
of a sawtooth wave.  The pops would be too regular.

Geiger-Mueller tube would be a pricey way to go... :^P

H^) harry

Glen wrote:

> At 10:14 PM 7/8/2005, harrybissell wrote:
>
> >how about start with white noise, then rub it into an active diode
> >section biased so that only peaks above a DC level would be passed.
> >
> >Those peaks would still be analog (of varying amplitude) but would become
> >less frequent as the DC level was increased.
> >
> >alternately you could get an old Gershon Kingsley record and have some
> >REAL popcorn noise...
> >
> >H^) harry
>
> What about feeding white noise through a narrow window comparator? That
> would make all the spikes the same amplitude, but is that really what we
> would want, if trying to generate popcorn noise?
>
> What about a weak radioactive source, and a Geiger Mueller tube?
>
> What about sampling the voltage drop across a blinky neon lamp?
>
> I'm just wondering. I have to admit that I'm not totally sure what isolated
> popcorn noise sounds like. I've heard a few audio amps which popped and
> cracked due to a circuit failure, but I don't know if that's really popcorn
> noise.
>
> Does anyone have a reference wav sample of the stuff?
>
> thanks,
> Glen