Messages in this thread | | | From | (H. Peter Anvin) | Subject | Re: NEWSFLASH! Linux ported to Commodore VIC-20!! | Date | 14 Sep 1998 21:56:38 GMT |
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Followup to: <Pine.LNX.4.03.9809142117340.18980-100000@mercator.cs.kuleuven.ac.be> By author: Geert Uytterhoeven <Geert.Uytterhoeven@cs.kuleuven.ac.be> In newsgroup: linux.dev.kernel > > > > That's one of the other reasons of course that they got dreadful data > > 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! >
With what, 3 dB of noise margin? (I think the quantization noise floor is -3.32 dB per bit.)
-hpa
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