[sdiy] Analog bandwidth

[Andrew Simper]

> Andy said he was going to check whether adding some ultrasonic noise
> makes sense for fast attack settings in his Glue VST but I don't
> recollect if we spoke about that afterwards.
>
> Cheers,
> D.


I have no idea what you are talking about and have never considered
adding "supersonic" anything to signals for any purpose.

It is possible to anti-alias non-bandlimited discontinuities if you
can estimate the discontinuity and add a corrective grain to
band-limit it. This is insanely hard and it ends up being  cheaper
just to oversample in the first place unless you have a priori
knowledge of the signal being processed, which is the case with a
sawtooth / pulse etc oscillator.

Andy