A folder full of track01.mp3? Sound Recognition listens to a sample, identifies the actual song, and renames it — across tag, filesystem, and DJ database in one step.
Every DJ library accumulates files with broken names. Rips with the disc number but no title. Downloads that lost their tags on a USB transfer. Folder archaeology from a 10-year-old drive where everything is called "track01.mp3". You can hear the song is good — you just can't find it because the name is useless. Manually renaming hundreds of files by listening to each one is the kind of task that takes weekends. The audio itself knows what the song is; the metadata just lost the memo.
Supported today
Rekordbox · Serato DJ · VirtualDJ (incl. Favorite Folders) on Windows 10+ and macOS (Apple Silicon + Intel).
Sound Recognition treats audio as the source of truth. The filename, the tag, and the DJ database are downstream consequences — once the audio is identified, they all get updated in one coordinated transaction so nothing falls out of sync. The recognition runs over a small audio sample (not the whole file) so the network call is cheap and fast. The recognition service runs through MLD's own server-side proxy so your audio fingerprints never go directly to a third party — and the daily quota is tracked per-license so the cost stays predictable.
Very accurate for commercially released music — typically 95%+ on tracks that have been published anywhere. The confidence score in the dialog tells you how sure MLD is. Borderline matches (below 70%) are flagged for your review.
Any audio format MLD can read — MP3, FLAC, ALAC, AAC, OGG, WAV, AIFF. The audio is sampled and analyzed regardless of the container.
Sound Recognition relies on a database of published recordings. A promo that's never been released anywhere may not be recognised, and a mashup may identify as one of its source tracks. For released content, the recognition is reliable.
Only a short audio fingerprint (not the audio file itself) is sent to the recognition service through MLD's server-side proxy. The proxy authenticates with the recognition provider on your behalf so your machine never talks to the third party directly. No music files leave your computer.
Yes. A daily quota applies per Pro license. The remaining quota is visible in the recognition dialog. The quota is generous for normal cleanup use but prevents accidental misuse.
The recognition service is a paid third-party API that MLD covers from your license fee. The Pro gate keeps the daily quota meaningful for users who actually need it and prevents abuse from the free tier.
Yes — MLD takes a timestamped backup of your Rekordbox master.db / Serato crates / VirtualDJ database before any rename operation. If anything looks wrong after, restore is one click.
Free tier covers detection and viewing forever. Pro is $49 lifetime — paid once, no subscription.
