To create the downloadable file:
A Dolby Digital 5.1 test video—usually in .mkv , .mp4 with AC3, or .ac3 raw format—preserves the original bitstream. When played through a USB drive on your TV, or via VLC/ Kodi on a computer connected to your AVR, your receiver will light up with "Dolby Digital" or "Dolby Surround." dolby digital 5.1 surround sound test video download