On Tue, Aug 10, 2004 at 12:48:42 +0200, derek holzer wrote:
Hi Jack,
Jack O'Quin wrote:
The second stable release (0.9.0) of JAMin - the
JACK Audio Mastering
interface is now available for download.
Great news! Thanks mucho! I haven't downloaded the new one yet, but I
wonder if you could tell me if any of your bug-fixes relate to denormal
numbers? Like a lot of Linux audio apps, I have trouble with massive CPU
leaps using the previous Jamin on my 1.6 GHz Pentium 4 that don't exist
on my 2 GHz Athlon XP box. Would the culprits be in Jamin, or in the
plugins used?
JAMin has some denormal killing code that protects it from denormals
coming in from outside. Its possible a small number could be generated
internally, it shouldn't happen often though. None of the plugin have
feedback loops or filters AFAICR, so they shouldn't cause denormals.
Try connecting a jack bitscope to one output and see if the denormal
counter increases:
http://www.ecs.soton.ac.uk/~njl98r/code/ladspa/
- Steve