----- Original Message -----
From: Kevin Horton <khorton@xxxxxxxxxx>
To: <stella@xxxxxxxxxxx>
Sent: Sunday, January 21, 2001 5:55 AM
Subject: Re: [stella] Kid Vid Voice Module
> At 19:36 1/19/01 +0100, you wrote:
> >At 18.58 17/01/01 -0500, Russell Babylon wrote:
> >
> >>The Kid Vid module was a pretty slick way to add voice and music to
Atari
> >>games in the early 80's. Each tape apparently had a preamble portion
> >>that had a sequence of high pitched tones that were filtered out by the
> >>Kid Vid Module and then sent in binary form to the 2600. From this
> >>information the 2600 could determine which game on the cartridge it was
> >>supposed to play and then start it. Once the game was under way the
tape
> >>player was under program control from the 2600.
>
> Actually, the tapes are in stereo. The "program audio" is on one channel,
> and the feeps are on the other. Remember too that the tape player is NOT
a
> standard model and has been highly specialized for this. One could
easily
> make a "cue file" for the 2600 emulator that would simulate the feeps in
> order. this could allow one to "emulate" the preamble and other
> things. (heh, someone could go as far to put text in the cue file that
> would be printed instead of the audio :-)
I am sending this message about a half hour after my previous post. Ok, I
was wrong. I loaded the Smurfs Save the Day tapes into my stereo tape deck
and the audio information is on the right channel and the digital info is on
the left. I guess my old portable tape player has crappy audio channel
separation. Now I will have to try and copy the info to a wave so I can
study the left channel information.
My apologies Kevin.
Russ
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