[PD] from signal to VU

[Mathieu Bouchard]

On Wed, 12 Feb 2003, Thomas Grill wrote:
> > On Wed, 12 Feb 2003, Alex from Idoia wrote:
> Don't know if it's what you wanted to know, but in typical musical or
> acoustic applications one would not take the instantanous sampled signal but
> an envelope or average of the absolute samples over some (small) timespan
> ("RMS value"). Thus, sqrts or logs of negative numbers can't occur. The only
> case is rms=0, which is easily treated as a special case (e.g. -1000 dB)

Okay, that explains it. Now I'm curious about what length of timespan it
is (typically), and whether it's a moving average, or a per-block average.

________________________________________________________________
Mathieu Bouchard                       http://artengine.ca/matju