Curious if this could be an issue with the units themselves or a VDJ vs Rane issue. I have two Mk2, with a Rane 72mk2. Lately the bpms while blending don’t seem steady. I don’t have this issue with my controllers , fogueed since the platters are moving, they may require calibration. I dod a pitch calibration, I’m going to do a full calibration here after this post. Just wondering if there is something I can do in VDJ to help.
Posted Thu 02 Mar 23 @ 3:30 pm
We haven't changed anything related to the motorized decks for quite some time.
So my guess would be that's something's wrong with a unit.
However the best test you can do is to run a motorized deck against a clone of itself on a non motorized deck.
In other words:
Connect only one unit and start VirtualDJ.
Assign the unit to deck 1
Load a LONG track with steady BPM/CBG on deck 1
Start the deck
Clone the deck as it's playing to deck 2
The 2 decks should now be in sync
Count down the time you start hearing an audible flange effect (if any)
If generally speaking the deck can stay in sync (with some minor flange / phasing audio here and there) for more than a minute then your deck is working great.
Repeat the test two times with a different pitch setting. One time at -4 or -5% and one time with +4 ot +5%
Then repeat the same test with the other unit.
Once you have the results you should have a more clear picture of what's going on.
If one of the decks is not keeping in sync, then mark it down and come back as I'm going to ask you to do more tests.
If both of them are not keeping in sync then please let us know. We'll have to do more tests to find out why it's failing.
If both decks are staying in sync with the above tests then perform another:
First of all in VirtualDJ use 4 decks skin layout where you can see all 4 decks waveforms at once.
Connect both units and assign them as deck 1 and deck 2
Load a LONG track with steady BPM/CBG on deck 1
Start deck 1 and clone it on both deck 2 and deck 3
Clone it AGAIN on deck 2 (to counterpart motor ramp up) and deck 3
At this point all 3 decks should be in sync.
Now observe the waveforms and check which deck is drifting against the "steady" deck which obviously is deck 3.
Repeat the test by switching deck assignments on the units (so that you can confirm that it's an actual physical unit that's drifting).
Let us know of your results.
So my guess would be that's something's wrong with a unit.
However the best test you can do is to run a motorized deck against a clone of itself on a non motorized deck.
In other words:
Connect only one unit and start VirtualDJ.
Assign the unit to deck 1
Load a LONG track with steady BPM/CBG on deck 1
Start the deck
Clone the deck as it's playing to deck 2
The 2 decks should now be in sync
Count down the time you start hearing an audible flange effect (if any)
If generally speaking the deck can stay in sync (with some minor flange / phasing audio here and there) for more than a minute then your deck is working great.
Repeat the test two times with a different pitch setting. One time at -4 or -5% and one time with +4 ot +5%
Then repeat the same test with the other unit.
Once you have the results you should have a more clear picture of what's going on.
If one of the decks is not keeping in sync, then mark it down and come back as I'm going to ask you to do more tests.
If both of them are not keeping in sync then please let us know. We'll have to do more tests to find out why it's failing.
If both decks are staying in sync with the above tests then perform another:
First of all in VirtualDJ use 4 decks skin layout where you can see all 4 decks waveforms at once.
Connect both units and assign them as deck 1 and deck 2
Load a LONG track with steady BPM/CBG on deck 1
Start deck 1 and clone it on both deck 2 and deck 3
Clone it AGAIN on deck 2 (to counterpart motor ramp up) and deck 3
At this point all 3 decks should be in sync.
Now observe the waveforms and check which deck is drifting against the "steady" deck which obviously is deck 3.
Repeat the test by switching deck assignments on the units (so that you can confirm that it's an actual physical unit that's drifting).
Let us know of your results.
Posted Wed 08 Mar 23 @ 11:06 am
i conducted a similar test, but I will go back and try this test and let you know.
Posted Wed 29 Mar 23 @ 6:20 pm
Does the Rane 12MK2 have wow and flutter?
Posted Wed 29 Mar 23 @ 9:43 pm
@XXX I think everything mechanical does to a small %
If you're watching a 1210 @100th of a bpm you'll see fluctuations, at the electronic level it will push harder or not push, every step is correcting how far it was "out" last time.
can you hear a difference? no but SW can tell the difference? yes, but should on screen 127.98 to 128.02 matter? no you're chasing numbers, if bpm was 1 decimal place you wouldn't even know.
trust your ears,
even real vinyl the hole is never perfectly centred, just watch the needle, it sways, that's a 100th of a bpm + & - every rotation, we don't hear it but SW faster/
If you're watching a 1210 @100th of a bpm you'll see fluctuations, at the electronic level it will push harder or not push, every step is correcting how far it was "out" last time.
can you hear a difference? no but SW can tell the difference? yes, but should on screen 127.98 to 128.02 matter? no you're chasing numbers, if bpm was 1 decimal place you wouldn't even know.
trust your ears,
even real vinyl the hole is never perfectly centred, just watch the needle, it sways, that's a 100th of a bpm + & - every rotation, we don't hear it but SW faster/
Posted Wed 29 Mar 23 @ 11:12 pm