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Forum: VirtualDJ Technical Support

Topic: BPM read correectly but beat grid all over the place
Started happening this morning - when I import a new track the BPM is read correctly but the beat grid is totally out of synch.

What's wierder is that when the track initially loads the first beat marker aligns with the start of the song, but when VDJ has finished analysing the track the first beat marker disappears and then the beat grid is just... wrong.

Single left clicking on the BPM button no longer realigns the beat grid to the first cue point.

I've not changed any settings so I'm baffled how VDJ can understand the track BPM but come up with such a misaligned grid.

Any ideas? Is there a setting I can switch back on/off?
 
Posted Mon 07 Jul 25 @ 8:17 pm
Matty S wrote :
a new track

More information required. What is the track? Artist, title, version (single edit, extended version), remix if any.
 
This is the first time I've used VDJ since the most recent update, so I suspect that has something to do with it.
 
Thanks for the reply and sorry, I should have been clearer - I bought about 30 new tracks via Beatport yesterday so all decent quality (320) and it happens to them all.

The same thing happens with all of my older tracks too (cue points fine, BPM fine, beatgrid wrong)
 
You need to name the artist and title of at least one track.

Old tracks (again, which ones?) will typically not have a steady tempo, and the BPM analysis just provides an average of the entire track. Unless you manually edit the beat grid and add anchors all the way through, the beat grid will not line up with that type of track.

Unfortunately VDJ is falling behind the competition in this respect.
 
All tracks bar 2 were released in 2024 or later, most from labels (and some from artists) which I have not had trouble before.

As I said, the problem is now with all tracks in my library, including all recently released tracks properly aligned to the grid before the recent update, so the evidence points to a change in VDJ rather than the quality or source of the tracks.
 
Here's a track I've found that represents one of the problems I normally see often - BPM is correct, detected audio start for cue is placed correctly, but the grid is placed on the off beat instead of the actual beat:

Nio Garcia - Mezcal

It's a Reggaeton track - 97 BPM.
 
I'd say that's fairly typical for that kind of music, where the emphasis is on the off beat. The snares have a higher peak on the waveform, so the analysis regards the peaks as the beat.

I'm unsure if VDJ currently uses frequency checks to pick out the kick, but it would seem not.
 
It probably does use an average of the snare amplitude as the main guide - the snare normally falls in between kicks (which are on the downbeat) but not always on the half, it alternates between some form of late off sixteenth beat an eighth most times.
It definitely happens more when scanning tracks from that genre though.
 
What is going on with BPM? I'm having issues in folders where tracks with particular BPM usually sync are now completely off and will not auto sync even when auto sync is engaged, and will be off by a negative or positive depending on what track was loaded first. Is there a fix or should we wait for an update.
 
- Settings/Performance/ExperimentalBeatanalyzer maybe?