Old 12-08-2006, 05:02 AM   #1
jotb
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Default stillwell plugs high CPU usage

Hi,
i have very cpu usage with the stillwell plugs ( in my case:
rbj1073,4x4, majortom) when there is no signal going.
anybody else?
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Old 12-08-2006, 05:41 AM   #2
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Quote:
Originally Posted by jotb View Post
when there is no signal going
this always seems to be a sign of denormal problems (especially on pentium 4 processors) ...
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Old 12-08-2006, 06:24 AM   #3
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What version of Reaper?
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Old 12-08-2006, 08:26 AM   #4
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I saw this issue as well. You can read more about it here...
http://www.cockos.com/forum/showthread.php?t=3770



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Old 12-08-2006, 08:33 AM   #5
jotb
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latest version of reaper 1.48.
and no pentium 4. it`s a athlon xp 2000+
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Old 12-08-2006, 09:25 AM   #6
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Quote:
Originally Posted by jotb View Post
Hi,
i have very cpu usage with the stillwell plugs ( in my case:
rbj1073,4x4, majortom) when there is no signal going.
anybody else?
I concur this with rbj1073. Haven't tested 4x4 and majortom yet. Version that occured was up to 1.47. I'm glad you brought this to attention cuz I thought it was just me. When the problem occurs, system runs extremely slow. Once I uncheck rbj1073, it goes back to normal. I have P4 2.53ghz, 1gig ram.
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Old 12-08-2006, 09:58 AM   #7
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The spiking of some plug-ins is due to denormal numbers, i.e. very small numbers (that occure while e.g. the internal feedback of an EQ decays to zero) that make the FPU fall into a different (more accurate but slower) state.

The simplest methode to fix this is to add DC-offset before the plug-in (a very tiny (unnoticeable) DC should generally be enough).
Others would be Nyquist injection, noise injection, square injection, ....
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Old 12-08-2006, 12:29 PM   #8
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Does this occur when the SStillwell plugins are the first in the chain or if they are after other plug-ins, or both?

thanks,

Justin
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Old 12-08-2006, 12:37 PM   #9
jotb
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I`ll have to test this.
i will report.
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Old 12-10-2006, 11:08 PM   #10
jotb
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o.k. sorry for the delay.
is seems that this happens just with rbj1073.
but it doesn`t matter, if there is a plugin before or not.
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Old 12-12-2006, 05:09 AM   #11
jotb
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hmm. it`s still the same problem with version 1.49.
it works if i use the normalize plugin from digitalfishphones in
AC mode with -190 db noisefloor.
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