[LAD] A small article about tools for electronic musicians

[Tim E. Real]

On May 2, 2010 10:22:29 am you wrote:
> On Sat, May 1, 2010 at 8:10 PM, Tim E. Real <termtech at rogers.com> wrote:
> > I tired a quick mod in MusE to do what the author of the caps ladspa
> > suite did to handle de-normals. He said "A -80dB signal at the Nyquist
> > frequency or lower". No luck.
> > But yeah, obviously at some signal level and type, it should stop.
> > So I'll keep trying. Noise sounds like the best way. -100dB white to
> > start? OK...
> >
> > Ugh. A new MusE options panel: Advanced de-normalization options, he
> > he...
>
> You might want to check ardour. It has 3 denormal protection options (2
> that are h/w based, setting processor flags, and 1 that is software based,
> adding a very very very very tiny constant value ("DC Bias") to every
> signal. See libs/pbd/fpu.cc to find the h/w stuff.
>
> --p
Yeah, now I'm wondering if MusE's basic DC protection level was simply
 too low, at least for those two plugins in question.
It is currently fixed at 
 const float denormalBias=1e-18;
I will try raising it and report back.

At some point I will see if I can try those plugs in Ardour and report
 how it fared.

Tim.