Screen and sound capture
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Screen and sound capture
13-03-2010 9:49 PM
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I'd like to capture, ideally as a video file, anything that appears on my screen - including audio.
I seem to have a very limited sound card.
I can easily capture video - using xvidcap - but no sound.
I'd settle for separate audio, though.
My motherboards soundcard is a CK804 (I think).
I think I'm using ALSA - but I don't understand Linux audio.
"In The Beginning Was The Word, And The Word Was Aardvark."
Re: Screen and sound capture
14-03-2010 9:50 AM
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Audcaity will capture the audio in a loopback form if your card allows full duplex, if not then you need to feed the headphone->input manually.
Re: Screen and sound capture
14-03-2010 1:33 PM
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Well Ubuntu 9.10 - and I have Audacity - but I think I would have to feed the output back into the microphone(?) input.
Since the recording would only be a secondary backup and the double D-A plus A-D conversion by a cheap soundcard will sound very rubbish, I think I will give up!
"In The Beginning Was The Word, And The Word Was Aardvark."
Re: Screen and sound capture
14-03-2010 3:08 PM
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Or try, right click on the speaker, and choose preferences. In the combo box does it show "Analog Stero Duplex" ? (mine does on both my systems) if so then audacity will record directly without a-d-d-a conversion.
Re: Screen and sound capture
14-03-2010 5:04 PM
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Quote from: Hairy Or try, right click on the speaker, and choose preferences. In the combo box does it show "Analog Stero Duplex" ? (mine does on both my systems) if so then audacity will record directly without a-d-d-a conversion.
I tried an mp3 through "movie player" - sound was fine.
But audacity picked up nothing - even though the volume control shows "Analog Stero Duplex".
I wonder if its an audacity problem - it won't play an imported mp3
"In The Beginning Was The Word, And The Word Was Aardvark."
Re: Screen and sound capture
14-03-2010 5:32 PM
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Re: Screen and sound capture
14-03-2010 8:20 PM
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Quote RHS of the screen at the top is a drop down that probably says Mic, try changing to Line
audacity now plays tunes - but doesn't capture.
As you can see, the volume control sees audacity trying to record and totem playing.
"In The Beginning Was The Word, And The Word Was Aardvark."
Re: Screen and sound capture
14-03-2010 8:41 PM
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Re: Screen and sound capture
14-03-2010 8:53 PM
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Watch this space.
"In The Beginning Was The Word, And The Word Was Aardvark."
Re: Screen and sound capture
26-03-2010 4:54 PM
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Re: Screen and sound capture
26-03-2010 6:18 PM
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I was afraid of totally screwing up the sound!
It seems that every man and his dog has a "standard" sound system!
OSS, ALSA, JACK, ESD...
Perhaps I should just connect the output to the microphone via a piece of wire...
"In The Beginning Was The Word, And The Word Was Aardvark."
Re: Screen and sound capture
26-03-2010 6:41 PM
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Open Audacity and press Ctrl-P choose Recording and Pulse. Close and click on the Mic icon and choose Monitor.
Open the Pulse Audio control panel, choose Volume Control.
Choose Recording, and select the Monitor of playback device
Volia ! all done!
Easy wasn't it
Re: Screen and sound capture
26-03-2010 8:48 PM
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You are an absolute star of the first magnitude!!!
I managed to follow your instructions and we (collectively) have succeeded in playing Terry Pratchett's "Guards Guards!" (mp3) via movie player via audacity back onto my hard disk.
So it works.
However, [because I use Gnome(??)] I had to install some pulse audio stuff...
I seem to have pulse audio + alsa now - but everything still works
Next step is to record sound and video off of a Java based applet, which I will try later tonight.
Many thanks.
"In The Beginning Was The Word, And The Word Was Aardvark."
Re: Screen and sound capture
26-03-2010 11:31 PM
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I have succeeded in doing an almost full screen video grab with xvidcap whilst simultaneously capturing the audio with audacity
So all I have to do is merge the video and audio streams.
"In The Beginning Was The Word, And The Word Was Aardvark."
Re: Screen and sound capture
27-03-2010 8:21 AM
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Quote from: A However, [because I use Gnome(??)] I had to install some pulse audio stuff...
I seem to have pulse audio + alsa now - but everything still works
Not my fault! Ubuntu introduced Pulse as the default in 8.10 (I think) you needed to add the pulse audio applet/manager (I have it added by default so forget about it) I also use Gnome so no difference there.
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