> > > rates; they used what was effectively a single-bit ADC to read from the
> > > tape...
> > Similar to the C-64. If you multiplied the single bit value with 15
> > and stored the result in the SID volume register, you had an audio
> > cassette player!
>
> Which sounded worse or better than the Linux PC-speaker sound device?
Might have been better, or equal.
I do know that the hardware for the PC speaker is about the same as for
the old Apple ][ speaker, except that the PC can do a square wave in
hardware, and the Apple needed to do it by CPU.
I once converted an Apple ][ sound routine for the PC speaker. It was
pretty straightforward.
MfG Kai
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