[MPlayer-users] Capturing audio from sound card line input [solved]
mark at foresthaven.com
Sun May 29 02:51:15 CEST 2005
On Fri, May 27, 2005 at 10:39:09PM -0700, RC wrote:
> On Fri, 27 May 2005 08:41:25 -0600
> Mark Zimmerman <mark at foresthaven.com> wrote:
> > The documentation says that I should be able to capture audio from
> > sound card line input when recording from tv but I have not been able
> > to find the mencoder options that actually make this happen.
> man mplayer
> That's probably not your problem though.
It wasn't, but I had seen that part of the man page and tried many
things but I could never get mencoder to accept the options. For
example, with :alsa:adevice=hw=0.0 I get:
ALSA lib pcm.c:2068:(snd_pcm_open_noupdate) Unknown PCM hw=0:0
Error opening audio: No such file or directory
and with just :adevice=hw=0.0 I get:
unable to open 'hw=0.0': No such file or directory
even though 'arecord --list-devices' says:
**** List of CAPTURE Hardware Devices ****
card 0: AUDIO2000 [AMP Ltd AUDIO2000], device 0: ICE1724 [ICE1724]
Subdevice #0: subdevice #0
No matter; this was not the problem. The following, combined with the
forceaudio option did the trick.
> You most likely have your
> mixer improperly set. Set both the "Line" device and "Capture" device
> as "Capture", and turn them up reasonably high.
I guess that the forceaudio option was needed because I am capturing
video from a card that does not do audio and v4l2 was confused by
Thanks for the help.
More information about the MPlayer-users