[mythtv-users] Digital to analog audio crossover

[Michael T. Dean]

On 10/03/2007 11:43 AM, Dan Wilga wrote:
> Instead of buying new hardware, why not have ALSA output the same 
> signal as both digital (SPDIF) and analog (RCA) lines of your sound 
> card at the same time? Many cards can do this, it's just a matter of 
> figuring out the right settings--which are highly dependent on the 
> card.

That is /only/ possible if Myth decodes the audio (i.e. it will /not/
work with AC-3/DTS passthrough).  For passthrough, you'll need hardware
to decode the audio and route it to the analog out--i.e. an A/V receiver.

At this point, using Myth to decode AC-3/DTS and output on digital loses
a /lot/ of capability.  You will get only 2-channel audio with an
unpatched Myth (even SVN trunk).

Mike