Hi folks,
I'm not sure if I'm in the right place asking this but I thought I'd try
anyway....
I'm having some problems with mplayer when I try to play 720p HDvideo
files with 1.5Mbit DTS soundtracks via SPDIF to my surround sound
receiver. AC3 audio is working fine (even up to about 1.5Mbit/sec) but
I'm finding DTS is very choppy. Standard DVDs with DTS audio work fine.
So after much playing around I've come to the conclusion that my home
cinema system might not be up to the job of playing something at such a
high bitrate.
The audio plays fine through the analogue connections, I believe it's
decoded using libdca.
I was wondering, is it possible to convert from DTS 5.1 channel audio
(basically what mplayer is decoding with libdca) to AC3 audio on the fly
using liba52?
I found a howto on the Gentoo site which mentions using the following in
my ~/.asoundrc
pcm.stereoupmix {
type upmix
slave.pcm "a52encode"
channels 6
}
But I'm not entirely sure how to tell mplayer to use this stereoupmix,
or if this is the correct thing to do.
I guess you could say I'm a complete newbie when it comes to Alsa.
If it helps, I'm running Ubuntu Hardy 8.04 Alpha 6 with a
2.6.26-11-generic kernel (AMD64) on a Phenom 9600. My sound card is a
SoundBlaster Live Digital 5.1 and I've connected it to my surround sound
system with a coax cable. My MPlayer version is 1.0rc2-4.2.3 and I
think I'm running Alsa version 1.0.15.
Thanks in advance,
Rob
-------------------------------------------------------------------------
This SF.net email is sponsored by: Microsoft
Defy all challenges. Microsoft(R) Visual Studio 2008.
http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
_______________________________________________
Alsa-user mailing list
Alsa-user@xxxxxxxxxxxxxxxxxxxxx
https://lists.sourceforge.net/lists/listinfo/alsa-user
