Play 48 KHz WAVs on your front height speakers, e.g. to test their audio fidelity (set speaker type in receiver to "Large" to prevent LF redirection). Requires successful activation of Dolby Atmos for home theater, on PC with the Dolby Access app https://www.microsoft.com/store/productId/9N0866FS04W8 Source code available at the Publisher Info website link.