[sdiy] DCO resolution (avr talk)

[Paul Maddox]

Antti,

> Certainly. The biggest limitation of low frequency resolution is the
> minimum beating frequency (or beating time). 0.01 Hz resolution gives you
> a maximum beating time of one and half minutes which is longer than many
> analog oscillators can do.

yep, well said.

> More important consideration for "good" sound is aliasing. You _Really_
> want to avoid that. A trivial sawtooth at 44.1 kHz sampling rate is simply
> unusable past a few hundred Hz (and sounds bad before that already).

ahh, but if you use a variable sample rate playback, like the MIDI-DDS link
I posted, aliasing isn't an issue :-)

Paul