The sound recorder is not a sound converter, it's made to record audio in a format not to transcode files in the save dialog, that seems an upstream feature request but a very low priority one, to send to GNOME since those are the ones writting the software, Ubuntu will not likely invest time in that feature
The sound recorder is not a sound converter, it's made to record audio in a format not to transcode files in the save dialog, that seems an upstream feature request but a very low priority one, to send to GNOME since those are the ones writting the software, Ubuntu will not likely invest time in that feature