[linux-audio-user] puzzling ecasound error

Paul Coccoli pcoccoli at gmail.com
Tue Nov 29 10:41:45 EST 2005

On 11/29/05, Kai Vehmanen <kvehmanen at eca.cx> wrote:
> Hi Paul,
> On Mon, 28 Nov 2005, Paul Coccoli wrote:
> > ecasound is way too complicated for me.  All I want to do is open jack
> > stereo ins and outs, load the LADSPA amp_stereo plugin, and control
> > that plugin's gain parameter via alsa midi.
> [...]
> > The -Md:alsaseq parameter is apparently ignored, and I get some error
> > about a plate reverb?!
> the problem is that ALSA sequencer support was added to ecasound-2.4.3 and
> you are using ecasound-2.4.2. So you'll need to upgrade. Otherwise your
> setup looks ok.

Oops; my bad.  2.4.2 is the latest in Planet CCRMA.  I was wondering
why the man page had so little to say about alsaseq.

I get that plate reverb error no matter what options I use.  Is that
something in my system configuration?

> > [paul at localhost paul]$ ecasound -i jack -o jack
> > -G:jack,ecasound,notransport -el:amp_stereo,1 -Md:alsaseq
> > -km:1,0,1,1,1
> [...]
> > ERROR: Connecting chainsetup failed: "Unable to open MIDI-device: rawmidi."
> This is perhaps not the best possible error message for the situation... will
> be fixed in a later release.
> --
>   links, my public keys, etc at http://eca.cx/kv

Thanks Kai.

By the way, I'm just trying to use ecasound as a command line ladspa
host.  Is there a simpler way to do this, or will I just have to write
some scripts?  Is it possible to use the interactive mode to add a
ladspa plugin on the fly?

One last comment: I was surprised that ecasound exits when the jack
mode is "recv" and I stop the transport.  I suppose that is the
intended behavior?


More information about the Linux-audio-user mailing list