[michalcik]

Hi,

I have a problem with 7.1 channels via HDMI to my AVR ONKYO TX-NR818

My setup:
MacBook Pro 13 mid 2014
HDMI output
Kodi 15.1
- HDMI output
- 7.1 channels

ONKYO TX-NR818
- 7.1 configuration
- speakers setup correctly
- FL, C, FR
- SL, SR (Surround channels)
- SBL, SBR (also used Rear or Surround Back Channels)

SOURCE
Dolby TrueHD Channel Check (Lossless)
http://s1.demo-world.eu/hd_trailers.php?...s-DWEU.mkv

SYMPTOMS:
- Kodi shows 7.1 TrueHD
- Every speaker plays sound
- but surround channels are switched
- Output is:

Left -> Left OK
Center -> Center (OK)
Right -> Right (OK)
Surround Left -> Rear (Back) Left (NOT OK)
Surround Right -> Rear (Back) Right (NOT OK)
Rear (Back) Left -> Surround Left (NOT OK)
Rear (Back) Right -> Surround Right (NOT OK)

IS there any way how to fix it?

Thanks for help.

[wrxtasy]

Mac's running OSX cannot passthrough 7.1 HD Audio, thats your problem right there.
And its been that way forever and can only be fixed by Apple.

Download a Kodi Jarvis development build to decode 7.1 HD Audio into 8 channel PCM and output that via HDMI to your AVR.
http://mirrors.kodi.tv/nightlies/osx/x86_64/

You must have missed the Kodi decode DTS-MA thread:

http://forum.kodi.tv/showthread.php?tid=237514

[wolpertinger]

michalcik,

we might increase our chances of Apple adressing this by giving them feedback (I already did)

Cheers,

wolpi

[Memphiz]

@wrxtasy - he uses Dolby TrueHD which we were able to decode before - it has nothing to do with dts - hd decoding... (and also it has nothing todo with passthrough)

@michalcik post the debug log (wiki) - also check your speaker layout in audio-midi-setup in osx (it might be t hat the speakers are switchted there - you can fix this in audio-midi-setup then and kodi will pick up the speaker layout on the next start of kodi).

[michalcik]

@wrxtasy - thanks for your replay. But as @Memphiz said my post was not about DTS -HD MA 7.1 I am celar on that. My problem was TrueHD and switched channels.

@Memphiz - also thanks for your replay. Audio-Midi-Setup on OSX is set correctly. So what I did was I changed Audio output in Kodi from 7.1 to 7.0 and then channels work also correctly. But it is 7.0 not 7.1

[wrxtasy]

Apologies to all, so just for my education when Dolby TrueHD is decoded in what format is it output over HDMI then ?

[Memphiz]

@wrxtasy multichannel pcm (8 unencoded pcm channels)

@michalcik - pleae post a debug log (wiki) when 7.1 speakerlayout is set

Did you verify that the speakers in osx-midi-setup are really assigned correctly (by clicking each speaker and verify that the noise comes from the shown speaker)?

[iFredOS]

My Dolby TrueHD movie seems to work but how can I know it's truly in HD audio ?

[Soli]

By pressing "o"? Seriously, you're not going to hear any difference anyways...