[MPlayer-users] Can't record tv audio

Wed Apr 5 09:47:18 CEST 2006

I installed 2.6.16 and it still does not work. And, about the hw:2,1 thing, i tested several other possibilities like 0,0 0,1 1,0 1,1 , etc., because i don't know which one is the right one. None worked for me. No sound. And, how can I find which one is the tv card audio? arecorld -l only lists my sound card. Anyway,thanks.
On Tue, 4 Apr 2006 18:15:58 -0300
"Paulo Cavalcanti" <promac at gmail.com> wrote:

> snd-bt87x is back to life in kernel 2.6.16
> 
> However, sox still does no work with it. But the command below should work
> (hw:2,1 should be changed for the number of your card. In my case the
> capture card is my third one).
> The sound is mono and not very impressive. But it works.
> You can use it to play sound on the TV with mplayer.
> For recording, I do not know how to do it without sox. Sorry, ....
> 
> *arecord* -D hw:2,1 -r 128000 -f S16_LE -t wav | *aplay
> 
> /Paulo Roma.
> *
> On 4/4/06, Paulo Cavalcanti <promac at gmail.com> wrote:
> >
> > snd_bt87x is broken in kernels 2.6.13, 2.614, and 2.6.15. They do not
> > create /dev/dsp2 or /dev/audio2, although the modules are loaded. In kernel
> > 2.6.16 they seem to be back, but I did not test. A guy from the alsa
> > project told me that this problem is fixed in alsa 1.0.11.rc3, and will be
> > available in kernel 2.6.17.
> >
> > I had the same problem you are having now with kernel 2.6.15. I upgraded
> > mplayer to a recent cvs version (March 25, 2006) and video4linux to a
> > snapshot from March 30, 2006, and got the sound back in mplayer.  But in my
> > case, if I used kernel 2.6.14 or below, I  had no problem with mplayer
> > sound while watching TV. However, my distro is Fedora 4.
> >
> > If you are compiling the kernel, I think it is easier for you to compile
> > just the video4linux modules from Mercurial, and update the modules.
> >
> >
> > /Paulo Roma.
> >
> > On 4/4/06, Jorge Peixoto de Morais Neto <JorgePeixoto at redecasd.ita.br>
> > wrote:
> > >
> > > I have tried 2.6.14 but it still does not work. Besides, I compiled
> > > 2.6.14 with snd_bt87x support built in (not as a module, but built-in) ,
> > > and the command  arecord -D hw:2,1 -r 128000 -f S16_LE -t wav | aplay
> > > results only in the message
> > > ALSA lib pcm_hw.c:1305:(_snd_pcm_hw_open) Invalid value for card
> > > arecord: main:544: audio open error: No such device
> > > aplay: playback:2006: read error
> > >
> > > This error message appears with tvtime running or not.
> > >
> > >
> > > Interestingly, there is no mention to snd_bt87x in dmesg ; nor in
> > > arecord -l. Is there something wrong?
> > >
> > >
> > > On Tue, 4 Apr 2006 09:12:55 -0300
> > > "Paulo Cavalcanti" < promac at gmail.com> wrote:
> > >
> > > > What kernel are you using?
> > > >
> > > > bttv (video4linux module) from kernel 2.6.15 has problems, and you
> > > will not
> > > > have audio in mplayer/mencoder, indeed. Try an older kernel ( 2.6.14),
> > > > or update your video4linux modules to a recent snapshot.
> > > >
> > > > Since I think you read portuguese, you can check the link below where
> > > I
> > > > explain how to
> > > > make a pixelview card work, get vide4linux from Mercurial repositories
> > > (
> > > > http://linuxtv.org/hg/),
> > > > etc...
> > > >
> > > > http://orion.lcg.ufrj.br/~roma/LCG_computadores.html#captura
> > > <http://orion.lcg.ufrj.br/%7Eroma/LCG_computadores.html#captura>
> > > >
> > > >  /Paulo Roma.
> > > >
> > > > On 4/4/06, Jorge Peixoto de Morais Neto <JorgePeixoto at redecasd.ita.br>
> > > > wrote:
> > > > >
> > > > > I have a tuner card working perfectly with tvtime, but I can't get
> > > audio
> > > > > out of it in mplayer or mencoder ; I can only get the picture. I
> > > have tried
> > > > > different commands like
> > > > > "gmplayer -tv driver=v4l2:norm=pal-m:channel=5 tv://". I have
> > > already
> > > > > googled a lot and would appreciate some help. Some technical
> > > information:
> > > > > Distro: latest gentoo
> > > > > mplayer version: mplayer-1.0.20060217
> > > > >
> > > > > kernel compiled whithout oss emulation
> > > > >
> > > > > The card is a Pixelview Playtv (don't know which exact model).
> > > Output of
> > > > > lspci:
> > > > > 00:0b.0 Multimedia video controller: Brooktree Corporation Bt878
> > > Video
> > > > > Capture (rev 11)
> > > > > 00:0b.1 Multimedia controller: Brooktree Corporation Bt878 Audio
> > > Capture
> > > > > (rev 11)
> > > > > 00:0c.0 Multimedia audio controller: C-Media Electronics Inc CM8738
> > > (rev
> > > > > 10)
> > > > >
> > > > > I use with the module bttv ; the parameters to bttv are "card=37
> > > > > tuner=43".
> > > > >
> > > > > The audio output of the card is connected to the line in of the
> > > sound
> > > > > card.
> > > > > --
> > > > > Software is like sex: it is better when it is free. --Linus Torvalds
> > > > >
> > > > > _______________________________________________
> > > > > MPlayer-users mailing list
> > > > > MPlayer-users at mplayerhq.hu
> > > > > http://mplayerhq.hu/mailman/listinfo/mplayer-users
> > > > >
> > > > _______________________________________________
> > > > MPlayer-users mailing list
> > > > MPlayer-users at mplayerhq.hu
> > > > http://mplayerhq.hu/mailman/listinfo/mplayer-users
> > >
> > >
> > > --
> > > Software is like sex: it is better when it is free. --Linus Torvalds
> > >
> > > _______________________________________________
> > > MPlayer-users mailing list
> > > MPlayer-users at mplayerhq.hu
> > > http://mplayerhq.hu/mailman/listinfo/mplayer-users
> > >
> >
> >
> _______________________________________________
> MPlayer-users mailing list
> MPlayer-users at mplayerhq.hu
> http://mplayerhq.hu/mailman/listinfo/mplayer-users

-- 
Software is like sex: it is better when it is free. --Linus Torvalds