1-channel (mono) AAC audio reported as 2-channel AAC (stereo) in Plex client apps (Web app, iOS app and tvOS app). This has no impact on usability or media playback.
Media produced using handbrakecli:
HandBrakeCLI --crop 0:0:0:0 --maxWidth 720 --maxHeight 480 --custom-anamorphic --keep-display-aspect --modulus 2 --encoder x264 --cfr --quality 20.0 --mixdown mono --aencoder faac --ab 64 --arate Auto --format av_mp4 --markers --x264-preset medium
Incidentally…
• 1-channel (mono) MP3 audio (in AVI container media) is reported as 1.0 channel audio in Plex client apps.
• Invisor (mediainfo engine) reports 1-channel (mono) AAC audio as both 2-channel and 1-channel depending the tag/field you look at (see attached file)!
Plex Media Server is likely using mediainfo engine (perhaps via the ffmpeg or libav). Is it better Plex report “Channel(s)” or “Channel(s)_Original” information?
Perhaps the Plex development team has considered this question and decided to present the “Channel(s)” data.
I’m not sure if this behaviour should change. Perhaps users (and perhaps someone from Plex development team might) comment on this.
