If the test file is for an older AVR, ensure you aren't using Joint Object Coding (JOC) , which is used for Dolby Atmos. Standard E-AC3 players may reject Atmos-encoded E-AC3 if they lack the decoder. 🚀 Verification Steps
If you downloaded a raw Dolby Digital Plus test stream ( .ec3 or .stub ), open your terminal or command prompt and run: dolby digital plus test file repack
ffmpeg -i input_test_file.mkv -c:v copy -c:a copy output_test_file.mp4 Use code with caution. -i input_test_file.mkv : Defines the source file. If the test file is for an older