[sdiy] video signals as audio

[gregory zifcak]

i think you could do this with a ring modulator, right? just make the modulating frequency different by an amount that is within the audio range.



----------------------------------------> From: sines_tr at scale.gs> Date: Tue, 30 Oct 2007 22:05:17 -0400> To: synth-diy at dropmix.xs4all.nl> Subject: [sdiy] video signals as audio>> I am probably the wrong person to be suggesting this, but ...>> after some discussion with Mr. Verbos...>> would actually be interested in going the other direction; bringing> video [analog, of course] down to the right frequency range [20hz-> 20,000hz] for some very complex harmonics.. but maybe things could> become not so complex. A frequency shifter [Cwejman, Doepfer, etc]> might do the trick; but are rather expensive for this sort of> experiment; and also might not bring the frequency far enough down> into the audio spectrum.>> first thought was some simple devices, like B&W 1-chip CCD security> cameras; maybe introduce some feedback, modify vertical / horizontal> hold.. ;)>> but sources like Vectrexs, Telestars, Atari 2600s.. could also be> sources of some _very_ limited signals.>> curious to hear anyone else's experiments..>>>> +odd> --> On Oct 30, 2007, at 5:58 PM, Roy J. Tellason wrote:>>> On Tuesday 30 October 2007 13:29, Derek Holzer wrote:>>> 1N 9148 silisium diode>>>> That's probably supposed to read 1N914B, not 8.>>>>> Motorola TCXO (Master Oscillator = 14.318180 MHz)>>>> I have some of these, and a bunch of crystals in that frequency as>> well.>>>>> 9602P Dual Monostable Multivibrator (common?)>>>> I've run across that part a few times (I think I may have one or>> two), when>> everything else was 74xx TTL. I'm guessing that the reason for>> this was that>> the 74123 dual monostable had a poor reputation for being>> vulnerable to>> temperature. I have also seen the 96LS02. Got data on the both,>> too.>>>>>> -->> Member of the toughest, meanest, deadliest, most unrelenting -- and>> ablest -- form of life in this section of space, a critter that can>> be killed but can't be tamed. --Robert A. Heinlein, "The Puppet>> Masters">> ->> Information is more dangerous than cannon to a society ruled by>> lies. --James>> M Dakin>>>> _______________________________________________>> Synth-diy mailing list>> Synth-diy at dropmix.xs4all.nl>> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy>>>>>> _______________________________________________> Synth-diy mailing list> Synth-diy at dropmix.xs4all.nl> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy

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