[mythtv-users] Problem playing some 5.1 audio.

[Joseph Fry]

>
>> > Strangely, it works fine once I switch Max Audio Channels to 5.1.   But
>> I
>> > have to switch it back when I'm done watching or I get no audio on my
>> normal
>> > content.  This isn't a huge issue for me... but it's severely hurting
>> the
>> > WAF.
>>
>> Because then you send plain PCM ; you're not getting the front left
>> and right channels though; I think it's center and surround right
>>
>> If you set it to stereo ; as the front and left aren't there, you get
>> garbage.
>>
>> Upgrade to 0.23 or 0.22 with the audio-code backport
>>
>> Ok, upgraded to 0.23 tonight... and yes, now I don't need to go in and
> change from stereo to 5.1 to play my 5.1 channel AAC MP4 files.  However,
> now the channels are all screwed up with those files... my receiver reports
> 3/2 when I start a show, but I get all my center channel audio on the left
> channel and god knows what on the other speakers.
>
> This is a huge step backward as those files are the "best" movies I have,
> which is why I encoded the 5.1 audio to begin with.
>
> is there a way to remap the channels, or did I set something wrong?
>

Ok... more testing and I still cannot get the sounds on my 5.1 channel AAC
files to come out the correct speaker.

I downloaded a 5.1 channel speaker test, and futzed with every setting
imaginable and either got no sound or the incorrectly mapped sounds.

All of my non-5.1 non-acc sources play great, with sound right where I would
expect it to be.  All of it is upmixed or passthrough though.  Only these
5.1 channel AAC's are giving me trouble.  The sound is there, and seems to
sound OK (not fast, slow, or static)... but all of it is on the wrong
channels.

Does anyone have any ideas where I should look next?  Or at least set me on
the right path... how are the 5.1 channels of AAC audio being sent to my
DD/DTS reciever across a standard coax digital connection... I assume there
is some realtime DD encoding going on... is that configurable?
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