[mythtv] [mythtv-commits] Ticket #1608: Proper Handling of Alsa AC3-PassThru

Richard Dale richard at interlink.com.au
Wed Apr 5 02:14:18 UTC 2006


What would be nice as a future feature is allow transcoding of say an AC3
2.0 Dolby Prologic (Surround) encoded audio stream into an AC3 5.1 Dolby
Digital stream/DTS 5.1stream.  

Why:
In Australia, most of the DVB-T is broadcast as AC3 2.0 - a complete waste
of my 5.1 system when the stream includes rear effect speaker, and requires
lots of extra button pushing to workaround.

When I watch a normal TV recording, I have to change my Amplifier to a Dolby
Prologic mode.  
When I watch a normal TV music-related recording, I have to change my
Amplifier to Stereo (or Automatic mode)
When I listen to music I have to set my Amplifier to Stereo (or Automatic
mode) 
When I watch a DVD I have to my Amplifier to Stereo (or Automatic mode) 
When I watch a Video (Mythvideo) I have to change my Amplifier to a Dolby
Prologic mode.

What would be nice:
Sound is automatically transcoded (hopefully real-time) to the way I want to
listen to it.

A closed-source resource in this area is:
http://hypercube.is.dreaming.org/

Cheers,
Richard.




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