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

MythTV mythtv at cvs.mythtv.org
Tue Dec 18 05:00:19 UTC 2007


#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):

 I have just added 33 which uses freesound upmixing and no longer requires
 the .asound devices.

 To use set the device to

 ALSA:surround51

 output will always be in 5.1 in the format L R LS RS C LFE

 initial testing shows that it sounds really good for 2ch upmixed videos
 with good separation.
 6ch audio is reordered so that it conforms with the output device format.
 4ch audio currently not supported but mono is.

 music and phone is handled with wider centre width and phasemode.

 down side is that it depends on libfftw3f but mythmusic already uses this.
 This can be changed later if desired to use fft lib from avcodec.

-- 
Ticket URL: <http://svn.mythtv.org/trac/ticket/1104#comment:56>
MythTV <http://svn.mythtv.org/trac>
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