[pd-ot] electric circuits in software
matju at artengine.ca
Sun Apr 30 18:21:08 CEST 2006
On Sat, 29 Apr 2006, Miguel Ramos wrote:
> Finding the total bitrate for all frequencies wouldn't be easy, because
> you can still recover information from signals with S/N ratio < 1, which
> is why bitrates over the same wires keep increasing. I don't know if the
> theoretical limit for this is known.
There's nothing so special about S/N < 1, it's not a threshold, except
maybe psychologically. The difficulty of transmitting something increases
gradually when S/N decreases and it's just a matter of coming with more
robust error-correction codes, even if it means duplicating the info an
insane amount of times just to help a few bits go through...
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| Mathieu Bouchard - tél:+1.514.383.3801 - http://artengine.ca/matju
| Freelance Digital Arts Engineer, Montréal QC Canada
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