How to · VirtualDJ

Analyze tracks in VirtualDJ.

VirtualDJ computes BPM, key, and the beatgrid the first time it touches a track, but a big library deserves a deliberate batch pass. Here is how analysis works and how to run it across everything at once.

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Analysis done ahead of time means no surprises at load.

Analyze tracks in VirtualDJ, step by step.

Analysis is what turns a bare audio file into something mixable: tempo, key, and a beatgrid the sync engine can trust. VirtualDJ analyzes lazily by default, when a track is first loaded, but you can and should force it in batches for library-scale prep.

Understand what happens automatically

When VirtualDJ first loads or scans a track it detects BPM and key and computes the beatgrid, then stores the results in its database so the work is done once. Tracks that have never been analyzed show without BPM and key values in the browser until they are.

Batch analyze a folder

Select the tracks in the browser, or the whole folder, right-click, and choose the analyze option (labeled along the lines of analyze for BPM in recent versions). VirtualDJ queues the files and works through them in the background. On a large library, start it before stepping away; thousands of tracks take a while on any machine.

Spot the stragglers

Sort the browser by the BPM or key column, or build a filter folder matching unanalyzed tracks, so files without values group together. This catches new downloads and imports that slipped past your last pass.

Re-analyze when values look wrong

If a BPM is halved or doubled or a key looks off, right-click the track and re-run analysis. For systematic halving on fast genres, gather the affected tracks in a filter folder such as bpm<90, select them all, open the tag editor, and use the x2 button next to the BPM field to correct the whole batch at once.

The catch

Analysis writes to VirtualDJ's own database, so the results live inside VirtualDJ. Other apps reading the same files run their own analysis and can reach different conclusions, particularly on key.

Track 001

Artist A

128

Afterhours

Mysterious

Introspective

Track 001

Artist A

128

Afterhours

Mysterious

Introspective

Track 002

Artist B

124

Cozy Floor

Peaceful

Home

Track 002

Artist B

124

Cozy Floor

Peaceful

Home

Track 003

Artist C

132

Rave

Aggressive

Festival

Build & Release

Track 003

Artist C

132

Rave

Aggressive

Festival

Build & Release

Where Vibes fits

Deep analysis on the same files

Vibes does not export to VirtualDJ; its analysis results flow into Rekordbox, Serato, Traktor, and Engine DJ only. But Vibes analyzes any folder you point it at, the same files VirtualDJ plays, and goes further than BPM and key: multi-band waveform, energy curve, section detection, and a sound-profile fingerprint per track. For a VirtualDJ user that is a richer prep view of the identical collection, plus a cross-check on every BPM and key value.

See how it works

Automatic local analysis on import: BPM with downbeat backtracking, neural key detection, waveform, and beatgrid

Energy curve and section detection (intro, drop, breakdown, outro) go beyond what a BPM and key scan tells you

One sidebar action selects every track missing BPM or key, and a bulk re-analyze fills only the gaps

Everything runs on your machine; files are referenced in place and the audio is never modified

Organize in Vibes, export to VirtualDJ.

Your playlists, tags, ratings, and cue points travel back to the gear you play on, so nothing you do in Vibes is locked away.

Track 001

Artist A

128

Afterhours

Mysterious

Introspective

Track 002

Artist B

124

Cozy Floor

Peaceful

Home

Track 003

Artist C

132

Rave

Aggressive

Festival

Build & Release

Playlists

Vibes

Mood

Aggressive

Euphoric

Melancholic

Mysterious

Peaceful

Playful

Tense

Function

Arrangement

Sets

Club Night 12/28

NYE Closing Set

Rooftop 01/04

Frequently asked questions

The honest answers, including the trade-offs.

No. Vibes has no VirtualDJ export, so VirtualDJ's BPM, key, and beatgrid always come from VirtualDJ's own analysis. Vibes analyzes the same audio files independently, which makes it useful as a second opinion and as a deeper prep view, but the two databases stay separate.

Not strictly, because VirtualDJ analyzes a track when you first load it. The problem is doing that live: analysis takes a moment and an unanalyzed track gives sync nothing to work with until it finishes. Batch analyzing new music when you import it means every track is ready before you are in front of a crowd.

Because tempo is ambiguous: 87 BPM and 174 BPM produce very similar onset patterns, so detectors on fast or halftime genres often land on the wrong octave. VirtualDJ has no BPM range setting to steer the detector, so fix the octave directly: select the affected tracks, open the tag editor, and use the /2 or x2 button next to the BPM field to correct them in one batch, or use the same buttons in the BPM editor per track.

Methodology