Re: [ecasound] Recording and monitoring

From: Pierre Lorenzon <>
Date: Wed Nov 26 2008 - 11:06:18 EET

Hi Julien,

Before asking my question I read the tips you wrote about these
subject. Thanks for this work but I did not find any answer to
this particular question in them.

From: Julien Claassen <>
Subject: Re: [ecasound] Recording and monitoring
Date: Tue, 25 Nov 2008 11:01:16 +0100 (CET)

> Hi!
> You have at least two alternatives, that I can see.
> 1. Use JACK, makes a lot of things easier:
> jack_connect system:capture_1 system:playback_1
> jack_connect system:capture_2 system:playback_2
> # your souncard inputs are connected to your outputs, that's the monitor.
> ecasound -c -a:1 -i jack -o out.wav
> ecasound ('h' for help)> engine-launch
> jack_connect system:capture_1 ecasound:in_1
> jack_connect system:capture_2 ecasound:in_2

  Things might be easier but I suspect with less understanding
  of the process.Moreover I'd prefer not to install jack on my
  system if things might function without it.

> Now just start recording. The same goes for softsynths, just exchange your
> system:capture_N to the corresponding port of your softsynth (fluidsynth,
> LinuxSampler, aeolus, etc. etc.)
> 2. Use loop devices: Not 100% sure, but 99%:
> ecasound -a:1 -i alsa -o loop,1 -a:2 -i loop,1 -o alsa -a:3
> -i loop,1 -o

  up to the syntax which is not completely correct :

  ecasound -a:1 -i alsa -o loop,1 -a:1,2 -i loop,1 -a:2 -o alsa
  -a:3 -o file.wav
  It works.

> file.wav
> About your alsa IO see the ecasound manual, there you find a bit about ALSA
> device naming with ecasound. Also have a look at the alsa-wiki at

  In my opinion that's precisely the point were things are not
  completely clear : What correspondance between alsa hardware
  naming in ecasound and sound devices. If I get understand
  this point I'll try to write something. Anyway I suspect that
  it might be hardware dependent.

> HTH.
> Kindest regards
> Julien


> --------
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> ======== FIND MY WEB-PROJECT AT: ========
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Received on Wed Nov 26 12:15:02 2008

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