Dolby Headphone/Atmos and Sonic w Headphones on MPC+LAV
What are the correct settings for using Dolby Headphone, Atmos/ and Windows Sonic on a headphone setup on MPC HC/BE + LAV filters? Sound card is Xonar DGX, headphones (Sennheiser 380 Pro) plugged into headphone jack. The source will be 5.1, 7.1 or either of these with Atmos.
So far I have been using the Dolby Headphone feature on the sound card, but I'm not sure I'm doing it right:
In windows (10 x64) I set up the speakers as 5.1. I select 6 channels in the sound card, and headphone for analog out.
In the LAV Audio Decoder Properties - Status I can see the bars for 6/8 channels in the Input and Output going up and down (during playback).
Do the mixers in MPC/LAV need to activated? If so which one?
For Windows Sonic I know that the output of the player needs to be set as 7.1.
What about Dolby Atmos.
Lastly, how do the Atmos and Sonic compare to the Dolby Headphone feature?