[mythtv-users] MythTV 0.24 HDMI audio problem

[Scott & Nicole Harris]

Believe it or not, we have a station here 
http://www.myretrotv.com/programming.html that broadcasts all these old 
retro shows.  A very large percentage of them are mono.

-----Original Message----- 
From: Jean-Yves Avenard
Sent: Saturday, November 27, 2010 4:04 PM
To: Discussion about MythTV
Subject: Re: [mythtv-users] MythTV 0.24 HDMI audio problem

On Sunday, November 28, 2010, Steven Adeff <adeffs.mythtv at gmail.com> wrote:
> On Wed, Nov 24, 2010 at 4:27 PM, Steven Adeff <adeffs.mythtv at gmail.com> 
> wrote:
>> On Wed, Nov 24, 2010 at 10:06 AM, Jean-Yves Avenard <jyavenard at gmail.com> 
>> wrote:
>>> The fixes have been backported to 0.24-fixes.
>>>
>>> If you use an HDMI TV or amplifier that only supports stereo PCM but
>>> supports 5.1 with AC3/DTS; you will have to go in the Audio Settings
>>> and check Advance Audio Configuration and Stereo PCM only.
>>>
>>> Jean-Yves
>>
>> Great, will give it a go and let you know. Thanks for the work JYA!
>
> I've updated to the 27352 mythbuntu auto-build.
>
> What I've noticed: when I scan and use ALSA:hdmi:CARD=NVidia_1 I get
> the following frontend output
>
> 2010-11-27 12:16:34.373 AFD: Opened codec 0x971a5b90, id(H264) type(Video)
> 2010-11-27 12:16:34.374 AFD: codec AC3 has 1 channels
> 2010-11-27 12:16:34.375 AFD: Opened codec 0x971b1d30, id(AC3) type(Audio)
> 2010-11-27 12:16:34.588 AO: Opening audio device 'hdmi:CARD=NVidia_1'
> ch 2(1) sr 48000 sf signed 16 bit reenc 0
> 2010-11-27 12:16:34.617 AudioPlayer: Enabling Audio
>
> but no sound over HDMI
>
> If I go back to use the old ALSA:hw:1,7 I get sound, AC3/DTS look to
> work properly, and my HD music plays properly. So it looks like it's
> all good minus the general ALSA issue with device scanning, but thats
> not your issue to deal with.
>
> Thanks JYA!
>
>

Who broadcast AC3 mono these days?

You said that using the "hdmi" device in mplayer got you sound?

Have you tried other type of content, something not mono (should be
automatically converted to stereo by myth but you never know)

Did you make sure the device is unmuted? On my gt220, I have 4 spdif
device showing up and I had to unmute the 2nd one to get audio
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