05.12.2014 14:41, bencoxdev@gmail.com wrote:
Hi Alexander, Thanks for looking at this for me. I have followed your earlier advice on setting up the correct HDMI device, unfortunately it doesn’t seem to have changed the situation. I am trying to achieve AC3 pass-through and not decode/encode the audio. Any thoughts that you may have about this would be much appreciated. TIA Ben
First of all, some more information about your setup is needed.
1. ALSA-info:
wget http://www.alsa-project.org/alsa-info.sh bash alsa-info.sh
This will upload the information to a central database and print out the link. Please post the link.
2. Full PulseAudio log
killall pulseaudio ; pulseaudio -vvv 2>&1 | tee -a pulse.log
(All in one line, with a ";" in the middle, in order to win the race against autorespawn. If it says "daemon already running", just try again.)
Please post the log on some pastebin and provide a link here.
3. An attempt to use speaker-test. Please try this command for all values of X from 0 to 3 and for all values of Y from 0 to 3:
pasuspender -- speaker-test -c6 -b 125000 -P2 -D "plug:'hdmi:X,Y'"
During one of the tests, it will hiss into your receiver. Please make a note of the correct X and Y values (for correlation with PulseAudio logs), and whether it hissed into each speaker separately.
Then, more information about your intentions is needed. Why are you talking about AC3 passthrough? I am asking because there are two ways to output 5.1 audio over HDMI: software decoding on a PC (which is IMHO preferable) and AC3 passthrough (i.e. hardware decoding on the receiving end, which requires a player that actually supports this feature when used with PulseAudio [which basically means "not mplayer"], and makes sense only on very slow CPUs or if the HDMI device is actually some dumb HDMI-to-SPDIF converter).
The correct profile to use is "Digital Surround 5.1 (HDMI) Output", which, due to a bug that I have already explained how to work around, is only available on "true" Intel and NVidia video cards as of PulseAudio 5.0.