[linux-audio-user] Command-line app to run LADSPA plugins?

Ken Restivo ken at restivo.org
Fri Mar 2 13:17:39 EST 2007

Hash: SHA1

On Fri, Mar 02, 2007 at 02:44:37PM +0000, Adam Sampson wrote:
> Ken Restivo <ken at restivo.org> writes:
> > I'm looking for a simple command-line daemon to run a processing
> > chain of LADSPA effects.
> You're probably after ecasound:
> ecasound \
>          -i jack_auto -o jack_auto \
>          -el:fbdelay_5s,0.5,0.2,0.5 \
>          -el:freeverb3,0,0.12,0.05,0.1,0.5,0.9

Thank you!!

> By default that'll connect itself to alsa_pcm for input and output; if
> you want to automatically connect to a different host's ports, you can
> say something like "-i jack_auto,fluidsynth".
> The numeric parameters after the plugin name are in the same order
> that JACK Rack shows them in, so you can test your effects chain in
> JACK Rack then fairly straightforwardly translate it to an ecasound
> invocation. (Actually, perhaps JACK Rack should be able to give you an
> ecasound command line, or should come with a tool to run a saved rack
> with ecasound... that one's going on the projects list.)

That'd be cool. But for now I don't mind constructing the script by hand.

- -ken
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