[linux-audio-user] Jack Rack & machine speach questions - (WAS:multiband compression with ecasound and ladspa)

Steve Harris S.W.Harris at ecs.soton.ac.uk
Thu Jan 20 10:31:02 EST 2005


On Thu, Jan 20, 2005 at 07:00:32 -0800, Mark Knecht wrote:
> On Thu, 20 Jan 2005 07:22:45 +0000, Steve Harris
> <S.W.Harris at ecs.soton.ac.uk> wrote:
> > On Wed, Jan 19, 2005 at 09:58:40 -0800, Mark Knecht wrote:
> > >    My first idea was to use the info provided earlier that Jamin is
> > > really using ladspa plugins and consider Jack Rack and a simple set of
> > 
> > For clarity: its not just plugins, the EQ and crossover sections are not
> > plugins, and probably shouldn't be.
> > 
> 
> I didn't mean to imply that Jamin was only plugins, but rather that I
> think you said that the compressors were so thee should be no
> differences using them in Jack-Rack or Jamin.
> 
> By crossover do you mean the section that divides the input signal
> into the number of bands you want? Why should that not be a
> specialized plugin or even a collection of stand alone linear phase
> bandpass filters? What's lost in the audio by doing it that way?

Yes. Its quite complicated, and the way its burnt into JAMin shares some
of the CPU load with other processes, as an independent plugin the CPU
load would be heavy.

That said there are more appropriate designs for a crossover in a plugin,
I just dont have the code around.

- Steve


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