DJM-2000nxs Use with Vinyl - Sync Issuesin Beat Slicer

Given the announcement of the reintroduction of the newly revamped Technics SL1200, there's an additional impetus to enable the beat detection from audio (main outs) capability in the beat slicer.  Bring it on!

Yes. I totally agree. This is a pretty much the only downfall of this mixer. I use technic 1210s and this I a huge issue. At first I thought I was just missing something thinking that I must not pressed the rights buttons or in the right sequence. After awhile of fustration realized the only way is to manually input the Bon for best slicer. Huge problem but seems like it wouldn't be that hard to fix with a software update. I hope pioneer fixes this. Love this mixer but when you need to loop something in a pinch it takes to long to manually do this specially if what your playing not right around 120 which is default.

ive been trying to look for an answer to this question everywhere regarding the beatslicer with vinyl records, can any of you confirm if the problem has been solved, if so could any of you possiblly link a video to show how well it syncs please, would be massively appreciated :), I'm currently considering buying a djm 2000 nexus as ive just purchased a pair of vestax pdx-d3s mk2's

Sorry, I haven't been in possession of a DJM-2000/NXS for a while, but I've asked one of the guys at the office to test and follow-up with this.

It's a bit of a complex answer, bear with me...

The Beat Slicer, when using a non-rekordbox source, has no beat grid and has to take the timing from either the manual timing (dialled or tapped in), or automatic beat detection. If that value is slightly off from the actual length, even on a perfectly consistent audio source (an electronically produced song), there will be a difference that will compound every iteration of the beat slice loop - meaning if it was only slightly off in the first pass, it would be a bigger difference and become more noticeable after every subsequent pass.

For a vinyl source, you have additional factors that will make it inconsistent - variations in the supply voltage can cause motor speed fluctuations, the turntable that may not have a perfectly stable pitch, there may be wow or flutter, or if you're playing a record, the pressing may not be perfectly accurate, or the song may have an inconsistent tempo (like disco or rock; anything with a live drummer).

Really, the best use of this feature is where you put the output on another channel from the source, then mix out the original source and monitor it in your headphones, adjusting the pitch ever so slightly to maintain a beat match with the slicer audio, then transition back over when you're done with the slicer.

Hopefully that answers your questions!

Thanks for your comment but it completely misses the point.  Your answer ignores the fact that immediately above the Beat Slicer is the effects section, which has a beat detection hat is automatic coming from the output of the master or A, B, or the individual channels, depending on the user's selection.  In other words, it is signal-based, not Rekordbox-sync based. 

Therefore, the software that runs the DJM is already programmed to do beat detection, and to a more accurate detree than what you describe above.

Both the effects section and beat slicer are software operations within the digital domain of the DJM's internal operating system.  Pioneer has already written the code and it is already a function of the DJM 2000.

The problem is that the designers/coders did not make the beat detection from the effects section "extend to" the beat slicer.  This is frankly an inexplicable oversight, rendering beat slicer pretty close to useless as what would otherwise be a huge selling point, particularly for vinyl dj's -- and particularly in light of Pioneer's line of vinyl turntables.

We who own this product don't need the beginner's tutorial above; rather, what we were asking (and I'm glad others have chimed in too) is whether Pioneer's software engineers have given any thought to fixing this flaw, through an update, which would make as an option for the beat slicer's tempo input the same auto beat detector that is coded and always-on in the effects section.

That existing beat detector is, as noted, always on, and is highly accurate.  The DJM2000's features are all software, since inputs are immediately A/D converted, and are converted back D/A only at the analog output stage - everything that the unit does is a function of code.  Thus, there does not appear to be any reason why the coded beat detector used in the effects section isn't likewise available to the beat slicer section. 

Is that such a difficult thing to (a) understand; and (b) to remedy in the DJM's code?

Thanks for your help and response.  However, it would best serve the 2000 users community to pass this thread along to the DJM2000 team or its software engineers, which is what I've been waiting for for nearly 2 years now.  They might better appreciate the specifics of the question presented in this thread.

vic

I hate to disagree or argue with you, but...

And yes, it will pick up the rekordbox beat grid if that source is selected as the master from which it is syncing.

Thanks again for your response and belated interest in this thread.  

That block diagram is conceptual, and not actually representative of hardware; as you know, the entire signal path is digital.  I've opened up the mixer and surveyed the PC boards, not that the "Digital/USB in" and "Digital Trim" immediately before the two circled items didn't make it obvious.  

That said, it ought to be possible for the coders to create another option, or a software mod of one of the existing options if there was an interest.

I'm guessing, however, that because this thread is now over two years old, there was no interest.  Even the Pioneer reps at ADE 2015 and NAMM 2016 with whom I discussed this issue at length thought it would make a great feature - particularly since the 1000 turntable had just debuted and it provided a new value proposition to the Beat Slicer (i.e., as an "emergency loop" for vinyl).  

Now that it's impossible to find the DJM 2000 anywhere at retail, the product seems to have been EOL'd so it's unlikely we'll ever get the mod/update that is the subject of this thread.  Too bad.  Otherwise, my 2000nxs is just shy of perfection.

p.s. the Rekordbox grid is irrelevant to using vinyl as a source, the subject of this thread.