firstname.lastname@example.org wrote: > Could anybody explain me shortly two things: > 1) Is the data send to the recorder the same as the real data to be saved? Or > is there a kind of translation used like CRC-encoding? No. The tapedrive itself is quite dumb. It spits out exactly the same data as it is stored on tape (or, to be more precise: It's supposed to do so ;) The only thing the tapedrive does is converting the analogue signal it reads from tape to a digital one. > 2) How is the data translated to "music"? I have a very good idea how it is > done with the old modems and I can imagine that the same trick is used here > as well. If memory serves me right, it uses a basic FM-technique, "high" bits having a higher frequency than "low" ones. But all of this is not really relevant here, since the only aspect of the tape-interface used here are the I/O pins involved ;) > There exist some gadgets which enable you to use an ordinary taperecorder > instead of the original datasette. What about using one of these and your PC > instead of the recorder? This is possible allready. Markus Brenner has written a program which will convert the data stored in a .TAP file to a sample, IIRC. However, both methods (TAP and VOC) waste quite a lot of memory. > Then some comment on the (2*) 149 files (of 64K)/CD. Using the CD as data-CD > means 650M / 64K = +10.000 files. That is quite a difference, isn't it? > Although I like the technical aspect of the idea, I'm afraid that there is no > much practical use for it. Sorry. There's one big difference: When using a CD-ROM, you'll either need an interface + software to access it from the Commodore, OR a PC emulating a 1541 drive. This technique requires much less hardware, and can be made to run on every 8-bit Commodore computer having a tape interface. Did I mention that it'll be cheaper too ? :) -- Martijn van Buul - Pino@dohd.cx - http://www.stack.nl/~martijnb/ Visit OuterSpace: mud.stack.nl 3333 finger email@example.com for my public key block - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail firstname.lastname@example.org.
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