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discoflamingo
n00b
Joined: 21 Dec 2002
Posts: 16
Location: St Paul MN, USA
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 Posted: Tue Nov 04, 2003 2:26 am Post subject: Capturing DVD Audio as WAV |
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Back when I was on Slackware, I would run:
| Code: | | vsound -f nameofwav.wav ogle |
and everything worked fine. I would search ahead by chapters, and get sections of sound I wanted. (I'm doing some dj work) I just got back into Linux sound work, and I have ALSA configured and running like a champ, but I get
| Code: | Missing file ./vsound969.au.
This means that the libvsound wrapper did not work correctlty.
Here are some the possible reasons :
- You are trying to record a stream (RTSP or PNM protocol) from
the internet. You will need to use the --timing option.
- The program you are trying to run is setuid. You will need to
run vsound as root.
- Vsound was not properly installed and hence won't work at all.
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I'm running both as root - any ideas? |
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Regor
Guru
Joined: 06 Aug 2002
Posts: 545
Location: 39° 2' 48" N, 120° 59' 2" W
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| Posted: Tue Nov 04, 2003 8:18 am Post subject: |
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vsound - neat idea. Hadn't heard of that before.
One thing that comes to mind is that vsound apparently only supports recording audio output into oss. I got the same error you did and I'm guessing it's because I've compiled ogle (and everything else) with USE containing "-oss alsa" which means that ogle is putting audio to alsa instead of oss so vsound isn't seeing it.
Again, this is just a guess since I've never used vsound before but it seems reasonable. Of course if you're using oss and not alsa, then I'm probably wrong. 
Another way you can get audio off a dvd in a less interactively-friendly way is to use mplayer's pcm writer output. e.g. to put the audio of the dvd's title #1, chapter 8 to file chap8audio.wav, while not showing the video at all, you could do the following:
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mplayer dvd://1 -chapter 8-8 -ao pcm -aofile chap8audio.wav -vc dummy -vo null
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This should work regardless of the sound system you're using since it's not dependent on the audio output going anywhere but directly to a file.
_________________
Sometimes the appropriate response to reality is to go insane.
-Philip K. Dick, Valis |
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discoflamingo
n00b
Joined: 21 Dec 2002
Posts: 16
Location: St Paul MN, USA
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| Posted: Tue Nov 04, 2003 4:34 pm Post subject: |
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I'll try this out as soon as I get home - I've been using ALSA and I can't change that fact (ardour, rosegarden, and audacity all kind of need it). Most of the things I've seen on the web have said that vsound is more or less obsolete for ALSA tasks because of the pcm module capabilities. And the non-interactivity is good - it makes it scriptable. Thanks for the help!
EDIT: Works like a charm! Thanks a million! |
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Gekko
l33t
Joined: 29 Oct 2002
Posts: 773
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| Posted: Wed Nov 05, 2003 4:03 pm Post subject: |
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Hi!
Another nice way to do this is dvd::rip (in portage as dvdrip)
there you can rip the video or you can select the option to encode the audio alone with i think different codecs. Needs gtk.
Greets, Gekko |
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andrew_j_w
Guru
Joined: 28 Jun 2003
Posts: 534
Location: York, UK
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| Posted: Wed Nov 05, 2003 7:12 pm Post subject: |
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You should be able to do it using mplayer.
I haven't tested this as I haven't got any dvds to hand but...
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mplayer -dvd 1 -vo null -ao pcm -aofile sound.wav
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You can use mplayer's title/chapter options to get the right bits.
The file sound.wav will contain pcm encoded wav of the sound.
HTH,
Andrew |
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TenPin
Guru
Joined: 26 Aug 2002
Posts: 500
Location: Kansas City
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| Posted: Wed Nov 05, 2003 7:54 pm Post subject: |
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| Also if you want the raw AC3 you can do similar to the above using -dumpaudio. Theres an AC3 plugin for XMMS too so you can have multichannel playback. |
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