Kodi Community Forum

Yes i've searched and tried allsorts but just cant get mono avi working on my setup - asrock 330 with latest svn using optical out to an AV Amp

the avi i'm currently trying is 48000Hz 93 kb/s , Monophonic

audio output is set to iec958 as is passthrough

aplay -L

null
Discard all samples (playback) or generate zero samples (capture)
default:CARD=NVidia
HDA NVidia, VT1708S Analog
Default Audio Device
front:CARD=NVidia,DEV=0
HDA NVidia, VT1708S Analog
Front speakers
surround40:CARD=NVidia,DEV=0
HDA NVidia, VT1708S Analog
4.0 Surround output to Front and Rear speakers
surround41:CARD=NVidia,DEV=0
HDA NVidia, VT1708S Analog
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=NVidia,DEV=0
HDA NVidia, VT1708S Analog
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=NVidia,DEV=0
HDA NVidia, VT1708S Analog
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=NVidia,DEV=0
HDA NVidia, VT1708S Analog
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=NVidia,DEV=0
HDA NVidia, VT1708S Digital
IEC958 (S/PDIF) Digital Audio Output


aplay -l

**** List of PLAYBACK Hardware Devices ****
card 0: NVidia [HDA NVidia], device 0: VT1708S Analog [VT1708S Analog]
Subdevices: 2/2
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
card 0: NVidia [HDA NVidia], device 1: VT1708S Digital [VT1708S Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0


any help would be appreciated - sorry if i've done anything wrong!

I'm guessing you have to set speaker layout to 2.0.

yep that did the trick thanks.

Any reason for choosing 2.0 ? I'm guessing channel numbers are unimportant to optical as its the receiver doing the work, so its a little confusing having the speaker setting under the audio output setting ? (I have a 5.1 setup)

Spdif only does 2.0 with pcm.

thanks, i learnt something new today!

maybe the xbmc interface / speaker choice should be reflected in choice of audio output to save confusion (for people like me )

Definitely, people now think "hey I have a 5.1 setup, I'll set it to 5.1" which is wrong when using spdif.

Noticed this too and worked it out a while ago.

Surely it would be best to have an option for XBMC to encode all audio to dolby digital 5.1. Obviously a downgrade in audio quality for say FLAC albums and the like but for other stuff it wouldn't really make a difference bearing in mind that most people if we're honest are playing scene rip videos with audio in mp3 at abr 128k.


Or even better an option to differentiate - so audio for "TV Shows" section gets encoded to DD5.1 and the rest is untouched.

That's just ridiculous, it'll waste cpu cycles, degrade sound quality and you lose automatic dolby pro logic selection on the receiver.