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-   -   mencoder an alsa input devices delta1010lt (https://www.linuxquestions.org/questions/linux-software-2/mencoder-an-alsa-input-devices-delta1010lt-732066/)

zaguerinho 06-10-2009 06:28 PM

mencoder an alsa input devices delta1010lt
 
I'm trying to Record Video from a v4linux2 capture card, but the sound must come from a different audio card, a delta 1010lt, I'm able to record video but fail to indicate the alsa device... I can record audio using mrecord but not with mencoder, does anyone have the propoer sintaxis for specifying alsa devices on mencoder command line? the audio source its connected to inputs 3,4 of the 10 input channel card... so it is not as simple has specifying something like alsa:adevic:hw:0,1

thank you

Zag

GlennsPref 06-12-2009 03:58 AM

Hi, I also record stuff on and with my pc.

I have had little experience with mencoder/mplayer except to play videos.

But, do you use jackd and qjackctl to manage your inputs and outputs?

If not, this may be your saviour.

I have the jack patchbay setup so that I can record to any track from any channel (although my edirol UA-25ex only has 2 channels)

here is a pic

Just of the patchbay.

I hope this helps

regards Glenn

zaguerinho 06-13-2009 12:43 AM

Thank you for your post, using the .asoundrc file I was able to create an alias for Delta Inputs 3,4 then use the alias with the 'arecord' utility, and it works! but mencoder would not recognize that alias on the 'alsa:adevice' parameter, I can see patchbay is a GUI application, I'm trying to setup a box with no gui, I've never try Jackd, although it seems like a usefull tool for routing devices... any way I kind of resolved... now, I record video with mencoder, then at the same time I record audio with 'arecord', then I do a 'avimerge' to get the final video from the .avi and the .mp3 files, all within some scripts so It is kind of automated, I thought I would get out of sync A/V, but surprinsingly no, audio and video match almost perfectly on the final merged avi file, so it did the trick for me.

Regards

Zag


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