On Thursday 02 November 2006 23:49, Fons Adriaensen wrote:
On Fri, Nov 03, 2006 at 09:23:10AM +1100, Stuart Allie
wrote:
I've just started playing with jack_convolve
and I'm having a few
problems. If I run the program with the default gain factor (1.0) and a
room-type impulse, the output is horribly clipped - it clips on even a
small input signal. In order to get a clean output, I have to reduce the
gain to something like 0.01. Is that normal/expected behaviour? It seems
odd that the default gain would be 1.0 if a useful value is around
0.01...
It depends on the energy in the IR. If it is a single strong pulse
followed by much lower samples, then a gain of 1 should work. If the
IR contains a lot of high amplitude samples, you will have to reduce
the gain.
You may want to have a look at JACE :
http://users.skynet.be/solaris/linuxaudio
And i have to admit that i'm not sure that i got the gain thing right in
jack_convolve. So, as, contrary to me, Fons knows what he's doing, try his
JACE :) I will, too ;) I only wrote jack_convolve because it seemed faster to
do to me than understanding/using brutefir's config files (back in the days
when brutefir was the only usable convolution engine existing. And it still
has millions more features than jack_convolve) ;)
Flo
--
Palimm Palimm!
http://tapas.affenbande.org