No AC3/DTS pass-through via SPDIF out - half solved
Posted: Fri Apr 30, 2010 6:37 pm
Hi,
I got my fitpc2i this week and finally had the time to install Ubuntu 9.10 according to this guide:
http://www.fit-pc2.com/wiki/index.php?t ... buntu_9.10
Everything works fine, video acceleration works fine (although with some 720p material I have lots of artifacts in mplayer), analog audio works fine with standard analog connection cable via SPDIF out and cinch adaptor.
The problem however is digital audio via SPDIF with the connector cable that was delivered with the fitpc2i:
I have "digital" sound when switching the audio properties of Ubuntu to "Digital Stereo (IEC 598) output + Analog Stereo Input".
But I did not find a way to get correct AC3/DTS pass-through (my receiver shows me once it gets a proper signal - with fitpc2i it always shows "PCM signal" and thus switches to normal Dolby Surround instead of Dolby Digital or DTS).
With my old Athlon XP PC I want to replace with the fitpc2i, I could achieve correct AC3/DTS pass-through in Ubuntu 9.10 by choosing the following settings in mplayer:
* Preferences -> Audio -> alsa audio with "hw=0.2" and
* Preferences -> Codecs & Demuxer -> Audio Codec Family -> AC3/DTS pass-through S/PDIF
Similar settings in fitpc2i's mplayer produce "broken pipe" or "PCM not found" or "no sound" errors (in fact all the hw=0.0, 0.1 or 0.2 produce errors, other audio drivers/system that are available produce errors, too).
Does anybody have an idea how I could achieve correct AC3/DTS pass-through? Watching HD movies without correct Dolby Digital or DTS is no fun...
Cheers
Franko30
I got my fitpc2i this week and finally had the time to install Ubuntu 9.10 according to this guide:
http://www.fit-pc2.com/wiki/index.php?t ... buntu_9.10
Everything works fine, video acceleration works fine (although with some 720p material I have lots of artifacts in mplayer), analog audio works fine with standard analog connection cable via SPDIF out and cinch adaptor.
The problem however is digital audio via SPDIF with the connector cable that was delivered with the fitpc2i:
I have "digital" sound when switching the audio properties of Ubuntu to "Digital Stereo (IEC 598) output + Analog Stereo Input".
But I did not find a way to get correct AC3/DTS pass-through (my receiver shows me once it gets a proper signal - with fitpc2i it always shows "PCM signal" and thus switches to normal Dolby Surround instead of Dolby Digital or DTS).
With my old Athlon XP PC I want to replace with the fitpc2i, I could achieve correct AC3/DTS pass-through in Ubuntu 9.10 by choosing the following settings in mplayer:
* Preferences -> Audio -> alsa audio with "hw=0.2" and
* Preferences -> Codecs & Demuxer -> Audio Codec Family -> AC3/DTS pass-through S/PDIF
Similar settings in fitpc2i's mplayer produce "broken pipe" or "PCM not found" or "no sound" errors (in fact all the hw=0.0, 0.1 or 0.2 produce errors, other audio drivers/system that are available produce errors, too).
Does anybody have an idea how I could achieve correct AC3/DTS pass-through? Watching HD movies without correct Dolby Digital or DTS is no fun...
Cheers
Franko30