[sdiy] Patchable polyphonic synth with FM or AM transmission idea

Mattias Rickardsson mr at analogue.org
Sat Jan 5 00:46:10 CET 2019

Den fre 4 jan. 2019 23:28 skrev <mskala at ansuz.sooke.bc.ca>:

> On Thu, 3 Jan 2019, cheater00 cheater00 wrote:
> > - compared to digital: FM transmission has no delay (not even 1ms),
> Common misconception.  Anything that is frequency-selective, like the
> filters needed to split the channels in an FM receiver, necessarily has a
> group delay resulting in "latency."  Using analog techniques to do it
> doesn't magically allow you to break the laws of information theory; and
> although you can reduce the group delay to be small enough not to be a
> problem, the same can be said of digital and you can never reduce it to
> *zero*.  I covered this a bit in my Web log here:
>    https://northcoastsynthesis.com/news/frequency-latency-and-uncertainty

Interesting examples of this duality, thanks for sharing! :-)

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