[sdiy] Audio Math

[Grant Richter]

>> Still, I'm disappointed that there isn't more interest in microcontrolled
>> and DSP based synth DIY. The perception that it *has* to be analogue, and
>> it also has to be an analogue copy of an existing module, is holding DIY
>> back significantly.

The definition of "analogue" is "being a device where data are represented
by variable measurable physical quantities".

You will notice that it says nothing about continuous or discreet
representations of the data. An electronic "digital" representation 1010
(base 2) is an analogue for the number 10 (base 10). The use of the terms
"analog" and "digital" for engineering methodologies is confusing.

The problem is that discrete mathematics (and it's "digital" representation)
is poorly suited for doing continuous functions. The use of discrete time
and discrete level computation introduces all kinds of extra work to compute
a continuous function like audio.

But it is currently cheap to do, and what they teach in the schools.

BTW, if you REALLY want to scare everyone on Holloween, dress up as a math
book!