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+---- Thread: Linux Changing audio output (/showthread.php?tid=132083)
Changing audio output - jannk - 2012-05-22
Hi - I'm just planning to build HTPC based on AMD Hudson or similar - and there's HDMI output + S/PDIF audio output on this board.
I'd like to output audio to HDMI when watching any video (having HDMI cable connected to my TV set), but use S/PDIF when listening to a music - so it can be connected directly to an amplifier.
I only can see one place to configure this in XBMC - would such configuratoin be possible?
(I have more devices connected through HDMI to my TV, so I want audio to go through TV for any video, but I'd like to have my TV off when just listening to a music)
thanks
RE: Changing audio output - jannk - 2012-05-22
would PulseAudio be the right answer?
RE: Changing audio output - LastCoder - 2012-05-24
I guess it's - unfortunately - not possible.
There seems to be a "dual audio output" hack for xbmc (search the forum) .. but I guess there is no simple switch :-( I miss that feature like in DVBViewer where you have an "Audio A" and "Audio B" configuration that could be switched by simple key press.
I solved it with a "hardware solution" - Y-cable from the analog stereo output - one cable into TV (my TV supports HDMI Video in and, at the same time, analog Audio in), one into AV receiver..
Greetz
LAstCoder
RE: Changing audio output - jannk - 2012-05-24
Thanks. Your hw solution unfortunatelly doesn't work for me ... :-(
I also found some suggestions about virtual sound card in Ubuntu sending the same signal to both outputs - but I had no time to try it out yet.
Or someone can write a simple(?) addon allowing quickly switching audio outputs by pressing a key - as you suggested :-)
RE: Changing audio output - LastCoder - 2012-05-24
hm .. seems that PulseAudio has the ability to stream audio to more than one audio device at once:
http://en.wikipedia.org/wiki/PulseAudio
http://forums.opensuse.org/english/get-technical-help-here/multimedia/461219-sound-multiple-output-devices-pulse.html
ArchWiki rockz again:
https://wiki.archlinux.org/index.php/PulseAudio/Examples#Simultaneous_HDMI_and_Analog_Output
I'll have to try it ...
RE: Changing audio output - jannk - 2012-05-25
something like that should help ... I'll try as soon as I can.
/etc/pulse/default.pa
load-module module-alsa-sink device=hw:0, sink_name=SPDIF sink_properties=device.description=SPDIF
load-module module-alsa-sink device=hw:0, sink_name=HDMI sink_properties=device.description=HDMI
load-module module-combine-sink slaves=SPDIF,HDMI sink_name=Combined resample_method=copy sink_properties=device.description=Combined
[SOLVED] Changing audio output - LastCoder - 2012-05-26
Hi,
so, solved it !
simply apt-get install paprefs [Pulse-Audio preferences]
http://freedesktop.org/software/pulseaudio/paprefs/
... activate "virtual audio device for simultaneous playback on all devices", change XBMC audio settings to this device [after system reboot] .. and now I have simultaneous audio output over HDMI [TV] and amplifier
Quite happy now, a next step to a maximum WAF
Greetz
Lastcoder
RE: Changing audio output - jannk - 2012-05-26
cool ! :-)
RE: Changing audio output - teeedubb - 2012-05-27
Have you guys tried this PA setup with pass through audio? Im currently using the dual audio patch to have simultaneous 2ch>HDMI + 2+5.1ch>S/PDIF. I know new versions of pulseaudio support pass through, although Im not sure if xbmc can do PA passthrough...but I havent had the time to try and Im curious to see if works as it looks like the dual audio patch will never become part of xbmc...