Author: Martin Hairer
Source
m4a is a container format that supports a number of different ways of encoding the sound, like ALAC or AAC. You can choose the encoding by clicking on “Settings” in the file savings dialog. As far as I am aware, nothing has changed recently in the way Amadeus treats m4a files (although the list of available encodings is provided by the operating system and can change from one version of macOS to another), so I suspect that you simply saved the two files with different settings. (Or, more likely, that the defaults have changed for some reason.)
Statistics: Posted by Martin Hairer — Tue Dec 12, 2023 4:09 pm