How to convert audio on a Mac (WAV, MP3, M4A, FLAC)
Built in: Music app → Settings → Files → Import Settings, then File → Convert. Slow for anything not in your library.
With Garlic
- Drag the sound files and hold ⇧ Shift.
- Drop on M4A, WAV, AIFF or ALAC (MP3, FLAC, OGG and Opus with ffmpeg installed).
- Or hold ⌥ Option for presets like Podcast (mono, even volume) or Ringtone.
Tags (title, artist, album) can be edited with ⌘ Tools → Metadata.