[mythtv-users] Issues with audio over HDMI

[Andrew Close]

On Sun, Jan 18, 2009 at 6:58 PM, Phil Wild <philwild at gmail.com> wrote:
> Hi,
>
>
>>
>> > on my frontend via nfs. This allowed my to open one of the .mpg files
>> > with
>> > mplayer and it played on the TV with audio through the hdmi cable.
>> >
>> > MythTV however, does not give me audio from live TV or recordings..
>> >
>> > Cheers
>> >
>> > Phil
>>
>> hi Phil, looks like we're in a similar boat on this one.  and you
>> nicely replied to my 'YAAT' :)  i believe that audio via HDMI using
>> the Realtek chips and Intel snd_hda_intel drivers is hit or miss at
>> the moment.  cool that you can get it working with mplayer.
>> one thing to try, in MythTv frontend, Utilites/Setup -> setup ->
>> General (pg3) you'll see audio settings for Myth.  try the following
>> settings:
>>
>> Audio output device: ALSA:spdif
>> Passthrough output device: ALSA:iec958:{AES0 0x02}
>> Max Audio Channels: Stereo
>> Upmix: Passive
>> Enable AC3 to SPDIF passthrough (checked)
>> Enable DTS to SPDIF passthrough (checked)
>> Aggressive Sound card Buffering (UNchecked)
>> User internal volume controls (UNchecked)
>>
>> now for the caveat.  you may need to play around with these settings,
>> and since you aren't using SPDIF, see if you can change that first
>> dropdown to ALSA:device=hw=0,3 or something similar to use your HDMI,
>> instead of SPDIF.
>> keep us updated :)
>
>  I have tried playing with these settings. I am at work now so can't check
> but I am fairly sure my settings are:
>
> Audio output device: ALSA:default
> Passthrough output device: default
> Max Audio Channels: 5.1

double check the above and change the Max Audio Channels back to
stereo.  the 5.1 setting doesn't work according to several other
recent emails.  you need it set to stereo even for 5.1 sound.

maybe you'll get lucky and that's all you'll need.  :)

-- 
Andrew Close