I will try to explain an issue I’ve came across after installation of the last january 2018 update.
It is an issue related to movies sound.
First, my setup:
I have OSMC installed in a Raspberry pi3, with my movies library siting in an external disk.
The Pi is connected to a Sony Android TV trough a HDMI cable.
The TV supports up to 7.1 channels input (including Dobly and DTS).
As the sound dynamics is better after being processed by OSMC, I usually don’t use passtrough,
but opted to use a 3.1 output (as I have a simple sound bar with a nice subwoofer connected to my TV).
This has been working just nice for over one year.
After the last january 2018 update, I’ve got several issues in which some movies are reproduced with sound effects but without voices !
The way I’ve found to get back the voices is to enabled passtrough - or in some cases enable passtrough then disable it again !
But it would be great to get sound processing (without passtrough) working again.
I hope I was clear enough.
This is the audio output section of my guisettings.xml:
It looks as if the center channel is missing. Can you post debug logs, please.
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Thanks for your understanding. We hope that we can help you get up and running again shortly.
Do you have OMX player enabled in your player settings? Reason I ask, is that random loss of the center channel has been a permanent issue for me when running LibreELEC on a Pi connected to my 7.1 AVR. The only way to fix it, was to disable OMX and only allow MMAL acceleration. I never found that to be satisfactory, as this was not addressing the root cause. My experience was that loss of the center channel was even random for the same title. One moment initiation of playback would be fine, stop and re-start, and center channel gone. Never found a pattern as to what broke or fixed it.