I believe the op is referring to the built in processing that ZTE licensed from Dolby. The app you're referring to is meant to control an external device through an app.
It's not possible to fully implement because the Atmos app is reliant on the Dolby audio processor chip to create the effects it does. The S7 doesn't use that audio chip, instead using either the in house Samsung audio chip for Exynos versions, or whatever Qualcomm uses in the S820 versions.