When using the command ffmpeg -i "$source" -codec:a libmp3lame -qscale:a 0 -joint_stereo 1 -ar 44100 -y "$dest" I get an mp3 file but it is stereo and not a joint_stereo. The reason is a 3 years old bug https://trac.ffmpeg.org/ticket/4954
I tried using this command flac --silent --decode --stdout "$source" | lame -V0 -m j -s 44.1 --silent -y "$dest" but it fails.
Has anyone here addressed this issue?
I can use the stereo, but with joint_stereo you have more available bandwidth for the file.