[linux-audio-dev] Re: [linux-audio-user] denormals or ... ?

Dave Phillips dlphillips at woh.rr.com
Tue Mar 13 17:30:11 UTC 2007

Tim Goetze wrote:

>Unfortunately, there seems to be a denormal problem with at least 
>AmpIV in CAPS.  The fix you mention works reasonably well for most 
>plugins, but in the Amp series there's a simple dc-blocking IIR 
>running at 8x fs that as far as I remember isn't 'renormalized' -- I 
>keep meaning to verify the problem and this likely culprit, but I 
>never seem to get around to it.
>Dave, I think your problems may well be caused by denormals; in fact I 
>think it's the most probable cause.  Does the problem persist if you 
>remove AmpIV from the processing setup?  The other CAPS plugins 
>_should_ be safe (can't guarantee 100% though).
Thanks for the tip, Tim, that fixed it. The AmpIV plugin was the 
culprit, I replaced with the Simple Amplifier and the truncated play 
problem is solved. Sad to say too, because I really like AmpIV.

So now we know. Thanks to all who replied, you guys are the cat's meow. :)



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