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- Newsgroups: comp.sys.sinclair,comp.sys.cbm,comp.sys.tandy,alt.folklore.computers
- Path: bath.ac.uk!uwe-bristol!knife!rff-ribe
- From: rff-ribe@csm.uwe.ac.uk (R Ribeiro)
- Subject: Re: Neat hack proposal for old machines...
- Message-ID: <1996Feb8.143230.17953@pat.uwe.ac.uk>
- To: Daniel Dee <daniel>
- Sender: usenet@pat.uwe.ac.uk (uwe nntp usenet poster)
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- Organization: University of the West of England.
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- References: <4etnnl$4fj@news.microsoft.com> <4eu4mo$gff@news.microsoft.com> <4fbat8$lbk@dns.crocker.com>
- Date: Thu, 8 Feb 1996 14:32:30 GMT
-
- Hello:
-
- I think that you're right till a certain point. It will work indeed,
- but is like a deck copy (a copy from tape to tape): with each copy you're
- increasing the level of noise...it will be better if it was decoded and
- saved afresh!
-
- I have done in a PC a routine that reads Spectrum tapes and creates
- a .TAP file in a disk (a binary image of the contents of the tape, already
- translated). Apart for the little space it uses (compared to .WAV), I
- think it's easier to manipulate. (at least for my emulation -- still in a
- early state).
-
- It has it's only problems, but I am considering to put it as GNU or
- something like that... to see if other people are interessed in picking were
- I left.
-
- It reads from printer port and from a SoundBlaster: but it's still
- some problems with noisy tapes.
-
- Bye,
- Rui Ribeiro
-
-
- In article <4fbat8$lbk@dns.crocker.com>, Daniel Dee <daniel> writes:
- > >Oh well. I realized immediately after sending that no work is required at
- > >all -- who cares if you can decode the data stream on a PC.
- >
- > >What's important is that you can capture cassette output to a .WAV file
- > >(or whatever) via the microphone in jack on a PC sound card, then play it
- > >back any time you like, even trade the sound files with other owners.
- >
- > Agreed.
- >
- > I once wrote a VERY short machine language program that reads signal
- > coming into the cassette-in port of an Apple 2, and then writes it
- > back out to the cassette-out port.
- >
- > While cassette-to-cassette audio copy is very unreliable, the above
- > method is fairly reliable even for copy-protected tapes. After all,
- > the computer has to be able to read the data off the cassette tape,
- > what needs to be done is just take the bit that was just read and
- > write it back out again.
- >
- > I bet the same method will work on any sound card.
- >
- > -- Daniel Dee (daniel@wigitek.com)
- >
-