Atmos Speaker & Sound Test

You spent good money on a Dolby Atmos system. But is every speaker actually doing its job? Most of us never really know. A surround speaker wired out of phase, a center channel that was never connected, a subwoofer set too low — these quiet problems rob you of the experience you paid for, and you'd never catch them in the middle of a movie. Atmos Speaker & Sound Test turns your Apple TV into a complete, professional-grade audio test bench. No microphone. No installer. No guesswork. WHAT YOU CAN DO • See your room — An interactive 3D view of your exact speaker layout. Tap any speaker to test it instantly. • Test every channel — Pink noise, sine tones, and frequency sweeps on each speaker, from stereo all the way to 9.1.6 Atmos. • Catch wiring mistakes — Isolate a single speaker or check polarity to reveal dead, swapped, or out-of-phase channels in seconds. • Calibrate by ear — A guided walkthrough to level-match every speaker, check phase, and dial in your subwoofer crossover. No SPL meter required. • Tune your subwoofer — A dedicated low-frequency sweep finds room boom and nulls, so your bass lands tight instead of muddy. • Test spatial audio — Hear a sound travel around and above you to confirm your height and surround channels are alive. • Know your system — An honest read on what your setup actually outputs: channel count, sample rate, Dolby Atmos and DTS readiness. • Reference demos — Curated demo clips to show off — and stress-test — your system. WHY IT'S DIFFERENT True discrete multichannel output instead of a stereo downmix, correct HDMI channel mapping, and a −20 dBFS reference level — the same fundamentals a professional calibrator relies on, built for your living room and your remote. BUILT FOR Home theater enthusiasts, new soundbar and AV receiver owners, anyone who just rewired their speakers, and audiophiles who want proof their system is perfect. Great sound was never about buying more gear. It's about knowing the gear you already own is working. Open the app, run a test, and finally hear everything you paid for.