"Mono" CD original recordings rip
I'm importing all my CDs into a media server, and boxing up the original media for storage.
In general, I'm using EAC to rip to flac files.
Some content is really mono. A normal audio CD is two channels, period, and one I looked closely at some years ago (an audio book) was simply two identical channels.
I'd like to store such material in 1-channel flac files, not just to save a little room but to allow it to match the right playback profile automatically and otherwise document that it's really mono.
Is there an easy way to tell if a track is really mono? Assuming that both channels are identical, the flac encoder would notice that anyway, doing the interchannel decorrelation. So I wonder if there's an easy way to see "the side channel is DC or very close to it" in the existing flac files, or as a report when using ffmpeg (or whatever's best) to re-encode with the highest compression level.