2 Aug
2005
2 Aug
'05
12:21 p.m.
hello one and all,
i would like a linux daemon that is always running and always listening
to the microphone input of the soundcard and create a new file and
record into that audio file when there is sound coming through the
input. and say after a certain number of minutes of silence or so, it
will end the recording and keep listening. then when sound comes across
again, it will begin recording in a new file.
i would like to have control over the sound quality to optimize space
and mp3 compression wouldn't be bad.
someone suggested ecasound with scripting to get it done, but i have no
idea just how to do that. i am running redhat fedora 2, which has
esound-0.2.34-2 with also the devel package, and it recognizes the
soundcard fine because i can play mp3s out with xmms and record in fine
with a linux gui recording program.
thank you in advance.
lucas
2 Aug
2 Aug
6:18 p.m.
this might almost be what you are searching for.
no idea what you want to use this for, so i'm just guessing.
http://plugin.org.uk/timemachine/
On Tuesday 02 August 2005 16:18, lucas wrote:
hello one and all,
i would like a linux daemon that is always running and always listening
to the microphone input of the soundcard and create a new file and
record into that audio file when there is sound coming through the
input. and say after a certain number of minutes of silence or so, it
will end the recording and keep listening. then when sound comes across
again, it will begin recording in a new file.
i would like to have control over the sound quality to optimize space
and mp3 compression wouldn't be bad.
someone suggested ecasound with scripting to get it done, but i have no
idea just how to do that. i am running redhat fedora 2, which has
esound-0.2.34-2 with also the devel package, and it recognizes the
soundcard fine because i can play mp3s out with xmms and record in fine
with a linux gui recording program.
thank you in advance.
lucas
--
-- leonard "paniq" ritter
-- http://www.paniq.org
-- http://www.mjoo.org
9:29 p.m.
Hallo,
lucas hat gesagt: // lucas wrote:
i would like a linux daemon that is always running and
always listening
to the microphone input of the soundcard and create a new file and
record into that audio file when there is sound coming through the
input. and say after a certain number of minutes of silence or so, it
will end the recording and keep listening. then when sound comes across
again, it will begin recording in a new file.
Attached Pd patch does this with recording to ogg. You need the
oggwrite~ external for this or change the patch to record to .wav
files as hinted inside the patch. Of course you need Pd (Pure Data)
installed but it's part of every decent distribution.
The idea is as follows: The level of the audio input (adc~) is watched
all the time using an envelope follower (env~). This normally goes
from about 0 to 100. As soon as it goes over a trigger level of 50, a
new ogg file is opened having a name like 1217-everything.ogg, where
1217 is the time in seconds passed since you opened the patch. As soon
as the level goes below 50 recording is stopped and a new file is
opened.
The patch is just an example to maybe get you started, it could be
improved in various ways, for example by using a delay buffer like in
Steve's timemachine to also record the past, or by using a better
trigger detection.
Ciao
--
Frank Barknecht _ ______footils.org__
_ __latest track: "plak" @ http://footils.org/cms/show/44
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2 comments
3 participants
participants (3)
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Frank Barknecht -
Leonard "paniq" Ritter -
lucas