[sdiy] Truly white noise

[Scott Gravenhorst]

Ah well, then the fine spirit of "what if?".  Cool, let us know what you learn.

<synth at oldmail.charlielamm.com> wrote:
>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.
>> >> 
>> >
>> 
>> ---------------------------------------------------------
>> - Where merit is not rewarded, excellence fades.
>> - Hydrogen is pointless without solar.
>> - What good are laws that only lawyers understand?
>> - The media's credibility should always be questioned.
>> - The only good terrorist is a dead terrorist.
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>> 
>> -- Scott Gravenhorst | LegoManiac / Lego Trains / RIS 1.5
>> -- Linux Rex         | RedWebMail by RedStarWare
>> -- FatMan: home1.gte.net/res0658s/FatMan/
>> -- NonFatMan: home1.gte.net/res0658s/electronics/
>> -- Autodidactic Master of Arcane and Hidden Knowledge.
>> 
>

---------------------------------------------------------
- Where merit is not rewarded, excellence fades.
- Hydrogen is pointless without solar.
- What good are laws that only lawyers understand?
- The media's credibility should always be questioned.
- The only good terrorist is a dead terrorist.
- Governments do nothing well, save collect taxes.

-- Scott Gravenhorst | LegoManiac / Lego Trains / RIS 1.5
-- Linux Rex         | RedWebMail by RedStarWare
-- FatMan: home1.gte.net/res0658s/FatMan/
-- NonFatMan: home1.gte.net/res0658s/electronics/
-- Autodidactic Master of Arcane and Hidden Knowledge.