Audio Mode is designed for audio/music files. This mode relies on your files having been tagged with song title and artist information as a minimum. These tags (ID3) usually are provided with the audio download or created by a CD-ripping program (e.g. iTunes).
Supported file types are:
.mp3
.ogg
.wav
.wma
.ape
.flac
.m4a
.m4p
.aac
All other files types in the scan are ignored.
Same Artist
All audio tracks with exactly the same Artist tag will be matched as duplicates.