Re: [ecasound] Lossless/gapless recording file changing

From: Kai Vehmanen <kvehmanen@email-addr-hidden>
Date: Sat Jul 05 2008 - 19:20:08 EEST


On Thu, 3 Jul 2008, Avuton Olrich wrote:

> This has been spoken about before, and it was said to maybe make an
> appearance in a later ecasound. I have 24/7 recording (raw file) using
> ecasound, usually I stop a recording and start a new recording at
> midnight. This causes a 3-4 second gap, I know it's a very minor
> detail so don't flame me too hard, but is it possible, or is it being
> worked on to be able to do this file change in ecasound and eliminate
> the gap caused by starting a new ecasound instance?

there are a couple of major problems in implementing this:

  - this would have to be done in an audio plugin (as this
    is not real-time and has to be behind a buffer)
  - there is currently way to sends commands to audio
    plugins during processing

... but, but, would a simpler interface do? Maybe something like:

ecasound -i alsa -o timesplit,60,foo-%d.wav

Would start recording to foo-0.wav and after 60secs, it would switch to
foo-1.wav, and so on. Ideas w.r.t. syntax and possible params are welcome.

This something that could be implemented by adding a new plugin (versus
having to make changes in core functionality which is always much more
riskier and time consuming).

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Received on Sat Jul 5 20:15:03 2008

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