Lexicon version: Couldn’t find, but when I tried to update - it said I’m on the latest version Operating system (remove one): Mac
Bug description:
Beatgrids are completely jacked up on many, many tracks when importing into Lexicon. It will then sync these jacked up beatgrids back to Rekordbox messing up much of my 20,000 songs.
Step by step to reproduce:
Import from Rekordbox 7. Beatgrids are jacked up. Sync back to Rekordbox - now those are jacked. Analyze in Rekordbox and beatgrid is fixed. I have provided 3 screenshots. One with a good beatgrid in Rekordbox. One in Lexicon after import. And another in Rekordbox after export.
Please, for love of the baby jesus I hope you have a way to fix all my jacked beatgrids.
Yes, the last screenshot is the correct beatgrid. When I redo the analysis (Dymamic for this song as it’s an acoustic’ - it’s back to normal. I’ve even tried to fix it in RB then upload back to Lexicon and the BG is all weird in Lexicon. I have turned off all settings related to BG, but it still happens. Of course, when I sync back to RB the grid matches Lexicon and I have to fix it again in Rekordbox. Will upload the DB now. Probably impacting about 40% of my collection.
the other thing i noticed that makes this problem easy to spot on my tracks is it has two red beat grids within one beat of each other. So the first red line in this track has 4 beats, then two red bars within one beat of each other. The two red bars are not always 4 beats away from the beginning but they seem to be within the first 4-8 bars of an impacted song.
It works fine here and exports back the exact same grid. Keep in mind that in RB you can’t properly see the grid markers but you can tell where they are by watching the BPM change.
Still the same result. Started with a good beatgrid in RB. Sync to beta Lexicon. Beat Grid isn’t correct. Sync back to RB and the beatgrid mirrors the errors in Lexicon. See updated screenshots.
But when I do Dynamic analysis in RB, the BG is totally normal (Maybe those marks are running behind the scenes?). However, when Lexicon syncs back to RB - the grids are all messed up. Not just beat shift, but the grid isn’t aligned to memory cue or hot cues. You got those double red markers, etc. I’m on Rekordbox 7.0.9
The interesting thing that I’m seeing is that maybe the grid made by LXC is better than what RB puts down, because at bar 6.2 it changes BPM to 88.31 and RB sets a new BPM every bar, so at 7.2 and 8.2 etc. But that doesn’t make sense, the red markers should be at the start of each bar.
Lexicon actually sets a new bar (the red marker) at 7.2 and and from there the BPM changes every bar, exactly on each red marker.
So what I’m seeing is that it is not doing an exact sync as the grid changes but it might be better? Correct me if I’m wrong…
When I drag the waveform in RB across the markers I don’t see a BPM change at every mark. When there are two close together only one has a BPM change. It also seems to be every other mark when they are close together. When they are regularly spaced at 4 bars then the BPM changes across each mark. Another odd thing is that I turned off all Beatgrid settings in LXC and yet it still makes changes to the Beatgrid in both directions!
I wouldn’t mind if LXC put down a better grid than RB, but right now most of my tracks are completly unsuable in their current state. I’ve done some small batch reanalyses but I lose any manual tempo changes and the grid doesn’t always align to the downbeat. So I need to go track by track. I have a gig on Sunday and my library is a disaster.
Can you make a quick video of the markers and bpm changes you set in a track that completely breaks? Cause the track righ now doesn’t have a lot of difference, would be better if I can inspect one that is wildly broken after sync
I need to go to bed, it’s getting late (I’m in Asia). Attached is a playlist that I made of a range of files that had bad beat grids. In each group (separated by the dashed lines) are a collection of tracks that have floating tempo (bands) and fixed (electronic modern music) that were analyzed using 4 methods
Group 1 (Dynamic with enhanced precision)
Group 2 (Dynamic without enhanced precision)
Group 3 (Normal with enhanced precision)
Group 4 (Normal without enhanced precision)
Results: Virtually every file that was round tripped into LXC using methods 1 and 2 (Dynamic) had an altered BG when brought back into RB. The files that were analyzed using Normal had no impact (even if they had a floating tempo). This seems to suggest LXC is tripping up on the dynamic beatgrid created by RB. I hope you are able to make some progress on this tonight. I’m sweating bullets now.
Oh and I found an unrelated bug. When you put duplicates in the playlist (like my dashed line) they are removed from the playlist and only the last one is kept after a sync. This is a bit annoying as I use the lines to separate sections in my set. Not sure why you would remove them from a playlist.
I’ll do some more tests here. You can upload the video here.
As for the other bug, it’s because Lexicon does not allow the same track in a playlist twice so your dashed line tracks are actually dropped on import. Something I’d like to change later, or possibly with real separators instead of fake tracks but that’s another topic.
