noise over ac3/dts passthrough

GSMD · 01-04-2009, 02:30 PM

My config is an LCD TV connected over HDMI to Gentoo box and logitech z-5500 ac3/dts decoder connected to TV over optical. Never had problems playing any movies in WinXP.

Code:

mplayer dtsmovie.mkv -ao alsa:device=plughw=1.3

This plays.

Code:

mplayer dtsmovie.mkv -ac hwdts -ao alsa:device=plughw=1.3

This doesn't. What I hear is just varying noise out of my Logitech Z-5500.

Googled a lot, still no clue

. Any ideas?

TIA.

GSMD · 01-06-2009, 03:50 PM

Well, I know what the problem is: what I'm trying to do is a dumbshit

.
Sending DTS to any TV over HDMI makes no sense at all as TV can't decode it. The DTS receiver connected to TV via optical would receive stereo only. Unfortunately, there's no such thing as digital sound passthrough for TVs (which would definitely make sense).