17 Oct
2006
17 Oct
'06
9 p.m.
On Wed, Oct 18, 2006 at 08:28:15AM +1000, Erik de Castro Lopo wrote:
Dan Mills wrote:
Conversely, I'll just mention that it's possible to get distortion of
low-frequency audio by setting the release time extremely fast, because
the compressor is effectively trying to increase the gain at the end of
every half-cycle. This is considered a case of giving the engineer
enough rope to hang himself, and hoping that he uses it responsibly. See
http://www.fmraudio.com/FAQ.htm#question4
for more.
--
Paul Winkler
http://www.slinkp.com
--- Erik de Castro Lopo
<mle+la(a)mega-nerd.com> wrote:
This is the way analogue compressors work. If you have a
sound with a fast transient going into a slow attack
compressor, the transient passes throught pretty much
untouched (apart from any clipping that may occur due
to other parts of the design). You need a low pass filter on the control signal.
It
should
be somewhere well below 1kHz.
Agreed that you need the filter, but a 'brick wall' at
1Khz means that anything faster then 50ms or so as an
attack time (and there are legit uses for such), will
itself overshoot horrribly due to the gibb effect of
bandlimiting the control signal.