[mythtv-users] ac3 passthrough problems
Richard Krehbiel
richard.krehbiel at gmail.com
Sun Oct 1 02:07:01 UTC 2006
Thank you very much for the help. But, still no workee.
On 9/30/06, Scott <list-mythtv at bluecamel.eml.cc> wrote:
>
>
> On Sep 30, 2006, at 4:57 PM, Richard Krehbiel wrote:
>
> > I'm building a mythtv system now (about as slowly as anyone
> > possibly can), and I'm stumped on the S/PDIF problem.
> >
> > I have an MSI K9NGM2-FID - Socket AM2, nVidia GeForce 6150, and I'm
> > using on-board sound with Intel HDA drivers (snd-intel-8x0). I
> > installed Fedora Core 5, current updates. I've got a coax from my
> > S/PDIF out to my Onkyo 304, and Onkyo set to consume coax. (It
> > works from an actual DVD player.)
>
> Find a .wav file on your system. Check /usr/share/sounds/alsa/ and
> look for something like "Front_Left.wav". Then try "aplay -D spdif /
> usr/share/sounds/asla/Front_Left.wav" and see if you get any output
> at all.
It says: "aplay: main:547: audio open error: No such file or directory".
aplay -v says nothing more.
> I haven't done any alsa configuration. I looked into it, but
> > frankly alsa is impenetrable (is there a good doc? I haven't seen
> > one) - plus I've read comments saying it should work out of the box.
>
> At the very least run "alsamixer" and make sure that your PCM is
> unmuted and set to a reasonable volume. Also look for an iec958
> device and make sure it is unmuted as well.
PCM doesn't look "mute-able." Pressing M with PCM selected does nothing.
Oh - IEC958 *was* muted.
Sadly, aplay Left_Front.wav still says "aplay: main:547: audio open error:
No such file or directory".
> I've got a DVD in right now. I'll play it:
> > mplayer -v -ao alsa -afm hwac3 -monitoraspect 16:9 -dvd-device /dev/
> > cdrom dvd://1
>
> Try this mplayer command again after you have:
>
> 1) Run alsamixer as directed above
> 2) Verified that aplay can generate some sounds for you
>
> If these steps don't help you post the output for the commands "aplay
> -l" and "aplay -L".
aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: NVidia [HDA NVidia], device 0: ALC883 Analog [ALC883 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 2: ALC883 Digital [ALC883 Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
aplay -L
PCM list:
hw {
@args.0 CARD
@args.1 DEV
@args.2 SUBDEV
@args.CARD {
type string
default {
@func getenv
vars {
0 ALSA_PCM_CARD
1 ALSA_CARD
}
default {
@func refer
name 'defaults.pcm.card'
}
}
}
@args.DEV {
type integer
default {
@func igetenv
vars {
0 ALSA_PCM_DEVICE
}
default {
@func refer
name 'defaults.pcm.device'
}
}
}
@args.SUBDEV {
type integer
default {
@func refer
name 'defaults.pcm.subdevice'
}
}
type hw
card $CARD
device $DEV
subdevice $SUBDEV
}
plughw {
@args.0 CARD
@args.1 DEV
@args.2 SUBDEV
@args.CARD {
type string
default {
@func getenv
vars {
0 ALSA_PCM_CARD
1 ALSA_CARD
}
default {
@func refer
name 'defaults.pcm.card'
}
}
}
@args.DEV {
type integer
default {
@func igetenv
vars {
0 ALSA_PCM_DEVICE
}
default {
@func refer
name 'defaults.pcm.device'
}
}
}
@args.SUBDEV {
type integer
default {
@func refer
name 'defaults.pcm.subdevice'
}
}
type plug
slave.pcm {
type hw
card $CARD
device $DEV
subdevice $SUBDEV
}
}
plug {
@args.0 SLAVE
@args.SLAVE {
type string
}
type plug
slave.pcm $SLAVE
}
shm {
@args.0 SOCKET
@args.1 PCM
@args.SOCKET {
type string
}
@args.PCM {
type string
}
type shm
server $SOCKET
pcm $PCM
}
tee {
@args.0 SLAVE
@args.1 FILE
@args.2 FORMAT
@args.SLAVE {
type string
}
@args.FILE {
type string
}
@args.FORMAT {
type string
default raw
}
type file
slave.pcm $SLAVE
file $FILE
format $FORMAT
}
file {
@args.0 FILE
@args.1 FORMAT
@args.FILE {
type string
}
@args.FORMAT {
type string
default raw
}
type file
slave.pcm null
file $FILE
format $FORMAT
}
null {
type null
}
cards 'cards.pcm'
front 'cards.pcm.front'
rear 'cards.pcm.rear'
center_lfe 'cards.pcm.center_lfe'
side 'cards.pcm.side'
surround40 'cards.pcm.surround40'
surround41 'cards.pcm.surround41'
surround50 'cards.pcm.surround50'
surround51 'cards.pcm.surround51'
surround71 'cards.pcm.surround71'
iec958 'cards.pcm.iec958'
spdif 'cards.pcm.iec958'
modem 'cards.pcm.modem'
phoneline 'cards.pcm.phoneline'
dmix 'cards.pcm.dmix'
dsnoop 'cards.pcm.dsnoop'
default {
type hw
card 0
device 0
}
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