[mythtv] [mythtv-commits] Ticket #1104: multi channelaudiosupport

Mark Spieth mark at digivation.com.au
Sun Feb 17 22:29:50 UTC 2008

>Please educate me on what problem this "multi channel audio support"
>is trying to solve.
>I have a very good surround sound preamp driving a 7.2 channel speaker
>setup.  My preamp can decode any surround sound format other than the
>new HD audio on Bluray or HD-DVD.  It does a very good job at routing
>the appropriate sounds to the appropriate speakers.  When fed a Dolby
>Digital 2.0 signal, it's ProLogic IIx decoder does an excellent job of
>filling all 7.2 speakers with the appropriate audio cues.  When fed a
>two channel stereo signal, it has a very good "music" mode which does
>an excellent job at divvying up the sound amongst all seven speakers.
>How does this "multi channel audio support" improve my situation?

what its suppposed to do is do timestretch as 6ch and then reencode
AC3 so you should always have AC3 digital feed at your amp.
naturally I cant test this myself but I thought it worked ok.
thus no need to disable timestretch as everything is still 6ch.

If it doesnt do this, please provide a log with audio and playback on and 
Ill see.

>P.S. Mark, I really like your contributions to Myth.  Please do not
>take this is an attack.  I just want to make sure I am using the tools

Im good at inserting bugs into things with good intentions. :-)


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