Re: [linux-audio-user] real-time audio effects (was: plugging a bassguitar in a linux box)

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Subject: Re: [linux-audio-user] real-time audio effects (was: plugging a bassguitar in a linux box)
From: Russell Hanaghan (
Date: Sun Jul 04 2004 - 19:09:20 EEST

On Sun, 2004-07-04 at 05:36, Veronica Merryfield wrote:
> This is basically my plan. Use Ecamegapedal to hold it all together and use
> a MIDI pedal board such as
> I intend to write my
> own plugins and if necessary, add to ecamegapedal to add the midi control
> routing unless I can find another way to do this.
> There are a couple of things one would want to be able to do. One is to
> change patches which could mean changing setting on all the effects
> wholesale or changing which effects are loaded. However, this might it
> difficult as pedal and switch assigments would change and the last thinkg
> you want is too much changing of what they do.
> So, the midi routing could be added to ecamegapedal which can then dela with
> patch changes which would include routing of the midi, or you route the midi
> separately to the various effects. My preference would be to use megapedal
> but I don't know if it handles patch changes. If it does, great. If it
> doesn't, should it or should something else be created.
> I would love to discuss this with the megapedal writers, but I don't have
> enough knowledge yet of megapedal. I guess, as with most things Linux, you
> can roll it yourself or help get it added.

Take a look at Alsa Modular Synth too...I tested most of the available
apps out when I started doing this. Ecamegapedal was a bit glitchy at
least on my box. (A couple or 3 releases ago) Alsa Modular synth had the
midi support you need built right in and the "parameter" settings are
awesome for filling the midi gaps. ( I had limited controller options
and ended up using Prog Ch. for toggling fx. AMS is realtime and has an
array of useful stuff.

> --
> Veronica Merryfield, somewhere in Cambridgeshire, UK
> ----- Original Message -----
> From: "Robert Jonsson" <>
> To: <>
> Sent: Sunday, July 04, 2004 12:16 PM
> Subject: Re: [linux-audio-user] real-time audio effects (was: plugging a
> bassguitar in a linux box)
> söndagen den 4 juli 2004 12.12 skrev caffeine:
> > Hi list,
> >
> > Thanks to everyone who answered to the previous thread. I played around
> > a bit with ecamegapedal, and I have to say I'm amazed by the
> > performances on this box (an old celeron 400...)
> >
> > Now I'm thinking about using it as an effect rack (it might actually
> > look good on stage (somewhat nerdish, but I like nerdish stuff (and
> > lisp))). I've looked here and there for interesting software to use but
> > I'm kinda lost. Ecasound seems like the thing I'd need, but I'm
> > wondering if I'm not missing something (there is a plethora of free
> > multimedia software out there (maybe more than closed source ones), but
> > it's difficult to locate the thing you need).
> >
> > So basically my question is, what do you people use for effect
> > processing on live instruments ? I'm pretty sure there are lots of nifty
> > things to do, I just don't know where to start...
> >
> > And thanks again for your previous replies.
> I think ecasound would be an excellent choice, especially as you are low on
> CPU and ecasound does not require guis and such stupid things. :)
> Do remember that ecasound supports LADSPA plugins so you are in no way
> limited
> to the built in effects of it.
> Other alternatives could be Jack-Rack (which is also for LADSPA effects) if
> you fancy GUIs. I think there are some ready-to-go boxes on Dave Phillips
> site also, for guitar, you know: <comp><dist><mod><del><rev>. But I haven't
> tried any so I might be mistaken.
> One thing to think about, that I don't know the best solution for, is if you
> want to alter the parameters in realtime. To get Wahwah or some cool organic
> modulation effect.
> First you need an interface to an external pedal, which isn't so hard, they
> generally produce midi. But I'm not sure about the best software. You'd
> basically want an effect rack with midi-in.
> Possibly there are some small midi only app that can be used to remote
> control
> ecasound...
> Ok, now I've strayed far enough from the subject :) Have fun.
> /Robert
> --

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