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SubjectRe: NEWSFLASH! Linux ported to Commodore VIC-20!!
On Fri, Sep 18, 1998 at 05:35:00AM +0200, Kai Henningsen wrote:
> pcg@goof.com (Marc Lehmann) wrote on 17.09.98 in <19980917122639.44336@cerebro.laendle>:
>
> The *PC speaker*?! We're not talking about a bloody soundblaster!

I wasn't.

> The PC speaker has a 1 bit input. Nothing like 5-6 bit. Also nothing FM.

You should really read the code. It _is_ FM-modulated, and achieves this
resolution (the carrier frequency is 18khz or higher). And no, it has one
bit _output_, not one bit _input_ ;)

> > be done with a C64, but additionally, the PC Speaker can be fed much higher
> > quality data (since a PC usually can sample a type at 8 or 16 bits, while
> > the c64 (etc.) tape could only be sampled at 1 bit).
>
> Uhuh. PC. Sample. 8-16 bits. You're dreaming of a soundcard, again.

Actually I was not dreaming, but _speaking_ of a soundcard here (maybe the
typoes in the sentence made that unclear). Playing tapes on a C64/VIC-20
etc. involved two steps:

1-bit sampling from tape -> one bit square output on speaker

And on a PC:

8/16 bit sampling from soundcard -> one bit fm modulated output on speaker

The quality is much higher, in theory (see above) as well as in pratice (I
heard both, and the pc speaker is much better ;)

-----==- |
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---==---(_)__ __ ____ __ Marc Lehmann +--
--==---/ / _ \/ // /\ \/ / pcg@goof.com |e|
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The choice of a GNU generation |
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