30 Nov
1998
30 Nov
'98
7:45 p.m.
> Possibly. But I distinctly recall that when we
recorded tapes for sale
> using the tape deck from my Sanyo stereo (not on a PET BTW - this was a
BBC
micro) we
found that Dolby noise reduction had to be disabled for it to
work...
Did you try recroding with Dolby and then replaying on a machine with
Dolby noise reduction (turned on), or replaying on the normal cheap
cassette recorder that you use with computers? If the former, then I am
not suprised it didn't work - the frequency response would have been
rather odd. The latter should have worked, though. I would be suprised if you couldn't make a CD that
could be loaded. I
can't try it because I have no way of writing to a CD.
I never meant to imply that you couldn't make a CD that could be loaded.
What I meant was you probably have to be more sophisticated than old
cassette -> digitised audio -> audio CD. I'd recommend old cassette ->
signal restoration -> digital signal (0s and 1s sampled at some highish
speed) -> possibly prefilter to pre-emptively undo the CD player's output
filter -> digitised audio -> audio CD.
For PET (and family) tapes a C2N would probably make a good cassette
machine for playing it initially, since it does some of the signal
restoration itself.
Philip.