To truly experience the three-dimensional immersion of a 7.1.4 Dolby Atmos system, you need precise calibration. A 7.1.4 setup consists of seven ear-level speakers, one subwoofer, and four overhead (height) channels. Without proper testing, your overhead speakers might be out of phase, or your rear surrounds might not be firing correctly, breaking the "audio bubble" effect.
NativeDSD Immersive Identification: If you are looking for audiophile-grade files, NativeDSD offers 2L Immersive Identification files. These guide you through the "sphere" of sound and are available in formats like TrueHD. Quick Pro-Tips for Testing dolby atmos 71 4 test download link
Elias didn't hesitate. He routed the output through the massive overhead array. He dimmed the lights until the room was a cavern of shadows. He hit Play. To truly experience the three-dimensional immersion of a 7
Dolby Laboratories provides official demo material for testing Atmos systems. NativeDSD Immersive Identification : If you are looking