[sdiy] Good Expo curve for VCA use..

[Mattias Rickardsson]

On 15 October 2012 22:17, Scott Nordlund <gsn10 at hotmail.com> wrote:
> I don't think you generally hear things increasing in dB, anyway. It seems like it would be a good idea, but it sounds weird.

Precisely, it's just for fading things in... And also, it needs to
start at zero - which an exponential growth never passes - so the
first part of the attack curve is chosen for instance as a linear
increase, followed by the exponential increase from some well-chosen
level.

On 15 October 2012 22:53, Tom Wiltshire <tom at electricdruid.net> wrote:
>
> It *is* definitely more difficult to evaluate attacks though. I once collected a pile of sound samples and wrote some code to perform a "best fit" of various attack curves (expo1, expo2, linear, cosine, etc) to the peak level between zeros for the rectified signal (a simplistic way to get the "envelope" of the sound"). The results were quite variable and not terribly convincing.

Not easy to choose the best one overall, but they all still have their
uses. You'd probably want to be able to choose from them, if you
could. :-)

/mr