[IMC-Audio] Re: VCR as audio recorder
Aaron
utr at raglan.net.nz
Thu Aug 26 16:00:40 PDT 2004
Paul and Chip said
> hi
>
> Paul Riismandel said:
>
> <snippettty>
>
> > Earlier units were better at recording the audio with no video input,
> > but this ability really varied from unit to unit. I had a laserdisc
> > player that generated a plain blue screen when it was on, and it never
> > shut itself off. So I used that as my "dummy video." Having a video
> > signal on the tape seems to make a big difference if you want to use the
> > tape on a different VCR than you recorded it on.
>
> My experience of this has been that you _have_ to have a video input or
> the playback quality isn't good enough - the audio takes some kind of
> timing signal from the video and without it randoml;y speeds up/slows
> down.
<snip snip>
Video has 4 tracks; video, 2 audio and a 'control' track which handles the
timing, from the old days of video tape editing I seem to recall that if we
tried editing onto a blank tape with no pre-recorded control track it just
wouldn't work.
Like others have suggested it is probably down to individual recorders as to
how they cope with an audio signal and whether they need to record video as
well to make the control track happen.
One way around it would be to do what we used to do before editing and
record something (blue screen?) onto the video tape before using it for the
fist time, then the control track should have it's timing sorted out.
Aaron
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