The sample file contains 3 audio streams. Both 8 channel 640kbit E-AC3 streams in the sample file play with no sound while the 6 channel 768kbit E-AC3 with Atmos on top plays fine.
I tried switching in the logs between the streams.
Until now I had no issues with any files on my Vero 4K and Denon X4400H receiver.
The MKV sample where I only extracted the audio that does not play can be found here:
Does this file contain only one problematic track - as it’s a music file, it’s not possible to toggle between tracks? It’s not playing here with passthrough either, but it does play when decoded to PCM.
I could verify that all works as expected playing back this clip via MPC with passthrough enabled. As this and another clip we’ve encountered do not play via Kodi from a Windows PC with passthrough enabled either, it seems we have found a Kodi issue here. We can certainly look into it, but it might be more complicated as it’s not platform dependent - not an OSMC specific issue.
@Chillbo Oh nice, or not so nice. I guess we will have more of such tracks in future.
If you have good relations with the Kodi team would be great if you could try to solve it.
I could also help opening a case, let me know.
Would be great if you could push this topic on the Kodi Thread as well. Or do you have good contacts with the Kodi team ? I see that a suggestion has been made but I do not really know if anyone would take up that task or how it is gonna continue.
Just did it. Lets keep fingers crossed. I wonder why there is not more complaining for this. It basically affects all E-AC3 tracks with more than 5.1 channels. Maybe having an Atmos home setup on DD+ is still “early adopter”
No, I’ve got what looks like an official Dolby E-AC3 7.1 test clip that has that hybrid format. I’m no expert but suspect most Atmos is TrueHD, and I can’t think why new titles would be published with DD+ instead of TrueHD unless they had loads of language options.