Same here - 2.2.4 loud noise and crackling with 7.1 AAC tracks on Sierra. Edit: I used ffmpeg -acodec copy to extract the 7.1 AAC track and alone it plays ok in VLC. Right now I have 2 files that exhibit the probem: both mkv, both HEVC, both with dual audio, one has 2x 7.1 AAC audio and the other ha...