[mythtv-users] Problem playing some 5.1 audio.
Greg Oliver
oliver.greg at gmail.com
Mon Mar 29 03:08:48 UTC 2010
On Sun, Mar 28, 2010 at 10:05 PM, Joseph Fry <joe at thefrys.com> wrote:
> On Sun, Mar 28, 2010 at 10:40 PM, Jean-Yves Avenard <jyavenard at gmail.com>
> wrote:
>>
>> Hi
>>
>> On 29 March 2010 13:12, Joseph Fry <joe at thefrys.com> wrote:
>> > Most of my programming is standard ATSC, XVID, DVD or other sources
>> > which
>> > play fine via my coaxial digial connection to my amp.
>> > However whenever I play a handful of encoded videos (primarily MPEG-4
>> > AAC I
>> > think) that are 5.1 channel audio, I must first go change the "Max Audio
>> > Channels" to 5.1 otherwise the sound is Sssslllllloooowww and deep
>> > toned...
>> > like playing a record at a very low speed; and some audio seems to be
>> > missing altogether.
>>
>> Which version of mythtv are you using ?
>
> 0.22.0 fixes build 22594 (from Ubuntu PPA)
>>
>> Using analog or digital audio out ?
>>
>
> Using Coxial digital spdif output.
>
>>
>> > normally just stereo, and my Upmix is Passive. These settings work on
>> > 95%
>> > of the videos we watch... just the few MP4 videos with AAC 5.1 channel
>> > audio
>> > that require that I change max audio channels to 5.1.
>>
>> AAC multichannels audio in 0.22 and earlier is broken ... at best the
>> channels order is incorrect.
If this is indeed fixed, it is enough for me to switch to .23RC1.
Going back and forth between audio settings for different videos has
been frustrating :)
Is the "trunk" release of your repo what needs to be enabled to get it?
> 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.
>
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