[mythtv] AC3 from internal player

Tim Jordan tim at wheresrover.co.uk
Sun Aug 13 10:08:02 UTC 2006

I am enabling and disabling the cards by loading and unloading the  
alsa modules. For both the hda-intel and the usb-audio I have the  
default also routes straight to the spdif. What I seem to get is a  
sudden start of ac3 and then nothing perhaps less than a few seconds.  
Almost as if it is trying to do a negotiation which then fails.
This does seem like a bug to me?


Tim Jordan
On 12 Aug 2006, at 23:59, Martin Ebourne wrote:

> On Sat, 12 Aug 2006 16:41:16 +0100, Tim Jordan wrote:
>> When I enable ac3 passthrough, the internal player only sends >1  
>> second of
>> sound then nothing. I am using a USB creative labs sounds blaster  
>> 24 with
>> the usb-audio alsa driver and my sound device is set to alsa:default.
>> Anyone have any ideas? it works fine without the pass through  
>> however on
>> the south park dvd i am trying to watch the sound level seems very
>> variable relative to load almost as if it is being compressed.
> Interesting, I have one of those and it works fine for me.
> How is ALSA:default getting the USB soundcard though? Have you  
> changed the
> alsa conf? ALSA:default usually picks up sound card 0 and since  
> your MB
> has sound already, the USB one should be soundcard 1. I use ALSA:hw: 
> 1 for
> mine, which works here.
> Cheers,
> Martin.
> PS. This is a -users question, at least until you find a bug in  
> mythtv.

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