MOTM

If you try to pass NTSC video signals through MOTM (or any other) audio 
processing modules, they will act as severe low pass filters.  Maximum 
bandwidth is maybe 100 Khz.   This is enough to pass vertical and 
horizontal sync signals (60 Hz and about 15Khz respectively), possibly 
intact enough for some monitors, but there won't be much picture 
resolution and probably no color.  You need 6 Mhz bandwidth for video.  
Other issues would be that video drivers expect a 75 ohm load (not 100K 
like MOTM inputs).  And the signal levels are 1 to 2 V p-p.  It's been a 
while since my video synthesis days.  Back then I built voltage 
controlled video processors, with CV inputs being compatible with MOTM, 
but signal paths designed for NTSC video with sync being stripped off 
and added back after processing.  I worked with David Jones.

http://www.audiovisualizers.com/toolshak/vidsynth/djones/djones.htm

http://www.paradise2012.com/visualMusic/vsynths.htm

Richard Brewster
http://www.pugix.com

Paul Bower wrote:
>>
>
> hello all,
> just wondering if anyone has had any success with video synthesis 
> using unmodified MOTM, CGS etc modules ?
> i vaguely remember a short thread along these lines a few years ago, 
> but can't seem to locate it
>
> so far i've managed to get something very interesting out of a Time 
> Machine (okay - feed some composite video in - get a Yuri Gagarin 
> style composite feed out)
>
> i kind of assumed that i might be able to get something out of some 
> modulated VCAs or maybe ring modulation, but so far no luck - though 
> maybe a lot of this is down to my choice of monitor.....?
>
> cheers
> paul
>
>
> *Paul Bower*
> *Un! Recordings*
>
> www.unrecordings.co.uk
> www.youtube.com/user/unrecordings
> www.myspace.com/unrecordings
> www.last.fm/label/Un%21/
>
>
>
>