Kodi Community Forum

Hi all,

Just switched over from Windows & MediaPortal to XBMC 12.3 Frodo (XBMCbuntu boot-USB drive) and I'm impressed of the out-of-the-box experience! Keep up developing this great platform guys!

However I do have one issue with playing MP3 music which I don't want to upmix to 5.1 output, as an audiophile-guy I like 2 channel music (sorry ) I've connected the PC via S/PDIF (optical) to my receiver and disabled the 'Stereo upmix' option in the Audio settings. But when I play MP3 files, the output is still upmixed to all channels. Other media is playing perfectly like DTS, AC3 etc.

Why is my 2-channel audio still upmixed and how can I solve this? Maybe it is a bug which is fixed in XBMC v13 (Gotham)?

Thanks for your help, it’s highly appreciated!


Jeroen

Never knew that SPDIF upmix (which only has 2 real channels so needs AC3 encode and output) in 12.3 worked at all :-) Congratulations.

Yeah - try gotham. You can use xmbcbuntu v13 iso.

Thx fritsch for your reply! I've just tried gotham, but unfortunately is the 'Stereo upmix' button doing nothing for me. Whenever I enable or disable it, still the audio is upmixed

Would this be the only minor issue I need to switch back to Mediaportal?

You don't need to switch anywhere, you need to read "Read that before posting" thread.

Debug Log is required.

Are you sure it's not your AVR that is doing the upmixing?

I think he runs pulseaudio and has set his speaker profile to 5.1 - then pulseaudio automatically upmixes anything to match that layout. But as he refues to post any logfiles - I ignored that thread.

(2014-04-28, 08:32)fritsch Wrote: [ -> ]I think he runs pulseaudio and has set his speaker profile to 5.1 - then pulseaudio automatically upmixes anything to match that layout. But as he refues to post any logfiles - I ignored that thread.

I have this very "problem". Is there any way to disable upmixing without changing the speaker layout? I know this is probably the wrong place to ask, but Google brought me here.

Check our pulseaudio wiki entry. I documented it here.