Subject: Re: [ecasound] Timer controlled recording
From: Jeremy Hall (jhall@UU.NET )
Date: Thu Mar 02 2000 - 00:54:26 EET
and if you have a fast enough cpu, you can use lame to real-time encode
the data. That does marvelous things to reduce the amount of disk space
I have found it is best just to have a constantly encoding stream running
that a little small program can quickly start writing data to disk,
ecasound takes a while to fire up, thus one might miss the first few
seconds of audio.
In the new year, Kai Vehmanen wrote:
> On Mon, 28 Feb 2000, Kimmo Koli wrote:
> > I'm wondering how to make a timer controlled recording, like a VCR for
> > audio. Of cource I can start a recording with at or cron, but how to end
> > it gracefully so that a clean wav-file results. Or should I just record
> > raw headerless PCM?
> You can use the "-t:seconds" option for specifying processing
> time ('seconds' need not be an integer). This should do it. 'at' and
> 'cron' will handle the rest.
> > The other problem is that how long a 44.1kHz stereo recording can I do so
> > that it is also playable/editable. I have now a 10GB recording partition
> > so I can record quite a bit...
> Well, with ecasound (and other programs using libecasound), file size is
> no problem. Only thing you have to be worried about is your kernel
> (whether it supports file sizes >2GB).
> Kai Vehmanen <email@example.com> -------- CS, University of Turku, Finland
> . http://www.wakkanet.fi/ecasound/ - linux multitrack audio processing
> . http://www.wakkanet.fi/sculpscape/ - ambient-idm-rock-... mp3/ra/wav
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