So this has been a weird event and wondering if others have experienced this. I have a bunch of m4v movies ripped on my Mac...5.1 / digital Dts audio. That I play to my home theatre downstairs via my Apple TV 4. The Apple TV is eathernet connected to a eathernet switch and hdmi out to my amp. The issue I am having (started a few months ago) is the amp reads the audio files as 5.1 digital and digital ex. But it will not play dialog to center channel? It just plays the audio to the side and other speakers...dialog and all.. I checked setting on Apple TV because Apple sends updates all the time...did not notice anything. I use the DVDfab software Apple TV 4 preset setting to rip my blue ray DVDs to my Mac. I just don't know if it is my amp that is having the issue decoding the file or if it is my Apple TV or if the eve fab software is ripping wrong. Any advice?