building a sound sampler for cryptophone application...

In article <9308201757.AA04239@soda.berkeley.edu> hughes@soda.berkeley.edu writes:
Yes, but have you ever tried to drive them from a C program? From the scanty docs I got with my Soundblaster, I wouldn't know where to start. And I get the impression that there's a major cpu overhead with these cards, like you can't actually do anything useful apart from grab the data. I want the data input to be free so there's CPU left over for compression and encryption and network or modem driving, without having to use a 66MHz 486 to do it... Oh, and multimedia cards are pretty expensive. This will cost maybe $25 at most. It's the sort of thing that once designed, hardware-inclined cypherpunks could hack up dozens of at home and pass them on at conventions like HoHoCon or the one we just had in the Netherlands...
*My* effort already is being better expended elsewhere. As I said, my old uncle has time on his hands and wanted suggestions; I thought it was better not to squander such an opportune resource on junk like chiming doorbells when he could be doing something for us just as easily. Now, if anyone actually has an answer to the question, which was about how to drive a PC parallel port for input, do let me know please. regards Graham === Personal mail to gtoal@gtoal.com (I read it in the evenings) Business mail to gtoal@an-teallach.com (Be careful with the spelling!) Faxes to An Teallach Limited: +44 31 662 4678 Voice: +44 31 668 1550 x212

Somebody posted a Unix soundblaster driver on alt.sources, I believe. Someone else will have to go digging though. : Now, if anyone actually has an answer to the question, which was about : how to drive a PC parallel port for input, do let me know please. Well, I have an ancient AT manual that I could probably dig out. But I don't think there's much trick to it.
participants (2)
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bill@twwells.com
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gtoal@an-teallach.com