From: Gideon Zweijtzer (gideonz_at_dds.nl)
Date: 2003-05-20 07:16:22
I once wrote a program to load turbo-saved programs from a tape with an Amiga and a sound sampler. It worked pretty well, but since my Amiga is somewhere in a cabinet, that program has probably got lost. It wasn't such a pain to write, though... I think it is even easier to just connect a tape deck to your PC, sample the whole tape and run the decoder program over it to extract all programs. I think those decoder programs are readily available on the web. Gideon > -----Original Message----- > From: firstname.lastname@example.org > [mailto:email@example.com] On Behalf Of Marko Mäkelä > Sent: Monday, May 19, 2003 08:46 > To: firstname.lastname@example.org > Subject: Re: Robust tape decoders anywhere? > > > On Sun, May 18, 2003 at 11:15:01PM -0400, email@example.com wrote: > > If the signal is not on the tape, you cannot get it off. Try an > > oscilloscope on the output from the read head. If you have > signal, a > > storage scope may be able to capture it. > > The signal sounds pretty much the same as it is supposed to. > I think that the number of pulses is still correct - only the > times when the pulses are triggered vary too much. > > To rescue some tapes in standard format, I wrote a slightly > more error-tolerant decoder, which you can find at > http://www.funet.fi/pub/cbm/crossplatform/transfer/datassette/ as decode.pl. It's not very good, and a lot of manual postprocessing is needed. I understand that writing anything similar for the Turbo Tape format is more challenging, since there are only two distinct pulse widths. The standard format uses a third pulse width for marking byte boundaries, and it stores each data block twice. Marko Message was sent through the cbm-hackers mailing list Message was sent through the cbm-hackers mailing list
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