linuxaudio.org

On 02/15/2013 10:48 PM, Sean Bolton wrote:

quoted text
> Hi Jeremy,

>

> On Fri Feb 15 2013, Jeremy Jongepier wrote:

>> I'm trying to figure out what is the best way to use the Guitarix-Amp

>> and Guitarix-FX LADSPA plugins on a headless system (read Raspberry

>> Pi). I've tried it with Ecasound but it already consumes more CPU

>> than the guitarix application itself! So I'm obviously doing

>> something wrong. Maybe this is because the Guitarix-Amp plugin has

>> one input and two outputs, read something about Ecasound starting up

>> multiple instances of the plugin in such a case which is not what I

>> want. So any hints or tips on getting this to run smoothly? I can use

>> either JACK or ALSA directly. I prefer using JACK, somehow using bare

>> ALSA produces large amounts of xruns.

>

> How about jack-dssi-host?

>

> $ DSSI_PATH=/usr/lib/ladspa jack-dssi-host guitarix_amp.so

>

> jack-dssi-host will then print out (among other things) its OSC path. Use this path with dssi_osc_send to set the plugin parameters (append '/control' to the path):

>

> $ dssi_osc_send osc.udp://youraddresshere.com:13160/dssi/guitarix_amp/guitarix_amp/chan00/control 5 -20

>

> which sets control port 5 to -20. You can query the current state of the plugin:

>

> $ dssi_osc_update osc.udp://youraddresshere.com:13160/dssi/guitarix_amp/guitarix_amp/chan00

>

> and don't forget analyseplugin to get the port numbers. HTH,

>

> -Sean

>

Hi Sean,
Thanks! Didn't think about that while I've used jack-dssi-host on

several other occasions. I'll give it a whirl!
Jeremy
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