[linux-audio-user] Freeverb (packaged with CMT) and Ardour beta17.1 UPDATE!

Russell Hanaghan hanaghan at starband.net
Fri Jul 9 02:34:42 EDT 2004


On Wed, 2004-07-07 at 23:46, Mike Rawes wrote:
> On Wed, 07 Jul 2004 14:59:22 -0700
> Russell Hanaghan <hanaghan at starband.net> wrote:
> 
> > On Wed, 2004-07-07 at 13:59, Mike Rawes wrote:
> > > On Wed, 07 Jul 2004 13:15:59 -0700
> > > Russell Hanaghan <hanaghan at starband.net> wrote:
> > > 
> > > > On Wed, 2004-07-07 at 09:28, Russell Hanaghan wrote:
> > > > > I have used Freeverb a lot in previous implementations of the
> > > > > CMT LADSPA package and the last version of Ardour I was using
> > > > > was beta 11.1 I think.
> > > > > 
> > > > > I am using Arodur beta 17.1 now and all other LADSAP plugs,
> > > > > including those in the CMT package, seem to be working fine but
> > > > > the response of Freeverb has changed...the reverb time is now
> > > > > very short and won't seem to adjust beyond a shortish plate type
> > > > > reverb. Before you could get super monsterous reverb tails if
> > > > > wanted.
> > > > > 
> > > > > Has anything changed in the Freeverb module? Is there something
> > > > > new in the Ardour package that might be causing this? I notice
> > > > > some new panning thingys and such.
> > > > > 
> > > > > 
> > > > > ANY help would be much appreciated. I tried every other reverb
> > > > > out there...Tom's (TAP-Plugs) comes close but Freeverb is the
> > > > > smoothest most realistic I have heard for my needs.
> > > > 
> > > > Just tried this in AMS 1.8.3...Freeverb is not working in AMS
> > > > either so I wan't to exclude Ardour as being any part of the
> > > > problem here.
> > > > 
> > > > I tried TAP reverb in AMS and it works fine.
> > > > 
> > > > So what might have change in the CMT version of Freeverb?  I
> > > > origianlly had CMT 1.15-2mdk.rpm installed. These are Mandrake
> > > > rpm's...I also downloaded CMT 1.15-3.mdk.rpm and installed and it
> > > > is the same thing. Any one know anything about the specifics of
> > > > the CMT package of LADSPA plugs that may be relevant?
> > > 
> > > The float denormal macro defined in Freeverb/Components/denormals.h
> > > doesn't come out too well with recent gcc - I replaced it with this
> > > (which turned up on this list during a discussion about denormal
> > > handling):
> > > 
> > > static inline float
> > > undenormalise(volatile float s)
> > > {
> > > 	s += 9.8607615E-32f;
> > > 	return s - 9.8607615E-32f;
> > > }
> > > 
> > > It should be fine after that.
> > 
> > Great! So ....Where the heck do I find this on my Mandrake 10.0
> > system? Is it something I can edit in a file on my system with the
> > present CMT LADSPA install or is it more complex than that?
> 
> Sorry - I wasn't thinking. To apply this fix means you need the source.
> (And the discussion was not on _this_ list at all - it was on LAD!) 
> 
> You can try this binary, which is just the plugins compiled on my system
> (AthlonXP 2000+, so it should be OK on yours:)
> 
> http://waxfrenzy.org/cmt.so.txt
> 
> [Misconfigured webserver, so I had to add a .txt] 
> 
> As root, do
> cp cmt.so.txt /usr/lib/ladspa/cmt.so
> 
> [/usr/lib/ladspa is the standard place for plugins - you might want to
> confirm with locate cmt.so first]
> 
> As Malcolm said, the issue is controversial - the maintainers of the RPM
> package should probably apply the fix for now...

Thanks Mike. I will have a go at this when I get time. For now I just
decided to revert back to the Mandrake 1.5-1 pkg. I have Freeverb
working again and for now thats all I need. Sure appreciate the link!

R~
> 
> - 
> Myk




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