First of all, I am sorry if this issue has been discussed/answered before. Searching gives me hundreds of answers and it is impossible to read every single one.
I am having a Zidoo x9s and use zdmc based on kodi 16.1. I have the box connected through HDMI to my AVR capable of AC3, DTS, DTS-HD, TrueHD etc. I enabled passthrough in zdmc, 5.1 channels, and clicked all radio buttons regarding support for different formats. Everything is working fine and in 5.1 except AAC. It plays all channels through from and left in stereo. Mind you, before x9s I had a windows box and same setup in Kodi and AAC had 5.1. Not sure what I am doing wrong but drives me nuts. With external Zidoo player, I have 5.1 audio in AAC files so android-wise, my setup is ok.
Can anyone help me with this issue? Any settings to try (without affecting any other formats and especially the HD audio ones)?
Thanks in advance.