[mythtv-commits] Ticket #1104: multi channel audio support

[MythTV]

#1104: multi channel audio support
-------------------------+--------------------------------------------------
 Reporter:  Mark Spieth  |        Owner:  ijr 
     Type:  enhancement  |       Status:  new 
 Priority:  minor        |    Milestone:  0.21
Component:  mythtv       |      Version:  head
 Severity:  medium       |   Resolution:      
  Mlocked:  0            |  
-------------------------+--------------------------------------------------

Comment(by markspieth):

 update for current HEAD r14586
 works with both internal ac3dec and a52dec.
 channel ordering is L C R SL SR LFE for both ac3dec and a52dec modes.
 (LFE since internal AC3 is last not first)

 my .asoundrc for 2ch upmix (passive matrix) and 6ch straight though
 AudioOutputDevice in setup is ALSA:ch51dup|surround51m
 works for a 6ch PC speaker setup.

 {{{
 pcm.ch51dup {
         type route
         slave.pcm surround51
         slave.channels 6
         ttable.0.0 1
         ttable.1.1 1
         ttable.0.2 1
         ttable.1.2 -1
         ttable.0.3 1
         ttable.1.3 -1
         ttable.0.4 0.5
         ttable.1.4 0.5
         ttable.0.5 0.5
         ttable.1.5 0.5
 }

 pcm.surround51m {
         type route
         slave.pcm surround51
         slave.channels 6
         ttable.0.0 1
         ttable.2.1 1
         ttable.3.2 1
         ttable.4.3 1
         ttable.1.4 1
         ttable.5.5 1
 }

 }}}

-- 
Ticket URL: <http://svn.mythtv.org/trac/ticket/1104#comment:35>
MythTV <http://svn.mythtv.org/trac>
MythTV