[mythtv-users] Fwd: Digital Audio on HDMI MB not working

Allen Edwards allen.p.edwards at gmail.com
Fri Jan 23 00:10:47 UTC 2009


Just a shot in the dark but do you perhaps have internal volume
controls on.  If so, try turning them off.  Also, check alsamixer and
make sure they are not all set at the bottom.  You might check if you
have the channels selected you are using and not others.

Allen


On Thu, Jan 22, 2009 at 1:43 PM, R. G. Newbury <newbury at mandamus.org> wrote:
> Rob Rosenfeld wrote:
>>
>> On Mon, Jan 19, 2009 at 11:01 PM, Allen Edwards
>> <allen.p.edwards at gmail.com> wrote:
>>>
>>> If I am remembering correctly, the machine gun is the digital data in
>>> analog
>
>> Since there seems to be a virtual surfeit of audio experts hanging
>
> around here, I will post a different problem: I get gravelly sound in
> myth from digital files (OTA) using Fedora 10, and great sound from
> analog files (PVR500). The sound from digital recordings is garbled and
> barely understandable. It is not 'machine gun' sound (nor chipmunk).
>
> Mythfrontend gives this error:
>
> 2009-01-20 17:00:45.013 [liba52 @ 0x5a11990]Error decoding frame, no
> sync byte at begin
>
> This is a recent, and updated install of F10, with SVN trunk 19453, but
> I get the same error with any recent version, up to and including SVN
> trunk 19704. System is a Core2 Duo with intel sound. Hdhomerun and
> PVR500. This is a recent install and update of Fedora10.
>
> This an either an alsa setup problem or a missing library. I have NO
> idea  where to start parsing what is wrong. This is a standard
> alsa:default  config, no digital passthrough, stereo sound setup. I am
> using analog output not SPDIF.
>
> NOTE: Mythtv plays digital video streams nicely, but ths sound is bad.
> Mplayer plays the same files perfectly. Analog source files play fine in
> both. So this is mpeg4 specific???
> I strongly suspect that this is not a setup error...but what is it then?
>
> aplay -l
> **** List of PLAYBACK Hardware Devices ****
> card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog]
>  Subdevices: 1/1
>  Subdevice #0: subdevice #0
> card 0: Intel [HDA Intel], device 1: AD198x Digital [AD198x Digital]
>  Subdevices: 1/1
>  Subdevice #0: subdevice #0
>
> aplay -L  (stereo portion only)
> default:CARD=Intel
>    HDA Intel, AD198x Analog
>    Default Audio Device
> front:CARD=Intel,DEV=0
>    HDA Intel, AD198x Analog
>    Front speakers
>
> Can anyone help?
>
> Geoff
>
>
>
>
>
>
> --
>        Please let me know if anything I say offends you.
>         I may wish to offend you again in the future.
>
>         Tux says: "Be regular. Eat cron flakes."
>
>
>
> _______________________________________________
> mythtv-users mailing list
> mythtv-users at mythtv.org
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>


More information about the mythtv-users mailing list