Traktor Playing A Deck Backwards Using CDJs

Traktor Playing A Deck Backwards Using CDJs

KIT (All brand new -4 weeks Old):
Traktor Scratch Pro 2
Audio 10
Running on Macbook Pro (2009) 500GB drive / 8GB RAM
Pioneer CDJs-1000 + Traktor CD Controllers
Pioneer DJM-800 Mixer

Also use a Traktor Kontrol X1

I’ve seen this issue on a few other posts but most were relating to vinyl which I am not using so wanted to start a fresh one as none of the ones I found seemed to actually answer the problem.

So at home I haven’t experienced this issue but in clubs / radio studios I have.

The better scenario Ive had is the CD plays backwards from the start so I have a chance to reboot which mostly fixes (all cables etc are 100% correct.)

The worst case is I’ll have set up in the club and both play forwards and fine, then one start play backwards. I’ve tried swapping RCA cables when this happens to compensate but makes no difference and as I’m already playing by the rebooting is no option. Luckily I have an X1 plugged in to help get round this but I’m obviously not getting the full experience here.

As you can see from my other 2 posts I’m feeling very frustrated as I just moved from Serato to Traktor and it’s taking a while to get set up:

Reload this Page CDJ Deck Playing track up to + 20% Pitch in Traktor

Traktor Wont play M4a:

If I had to guess I would say it’s an issue with your timecode quality. You’ve (apparently) ruled out RCA polarity, so that’s not it. Is this always with the same needles? Also, have you tried putting the reversed channel in cue and listening to the actual audio coming from the deck? You might want to listen for a hum or other noise.

Could be something intermittent like a ground loop, or a problem with the cables or audio interface.

This has happened to me a few times too. I can’t remember how I remedied it.

What do the scopes look like when this is happening?

This happens to me as well occasionally, but it’s never a huge problem. I believe what I do is I’ll either start switch to a different mode (go from Relative to Absolute and then back again) or switch off the CDJ and let it reboot. Usually fixes the problem, but you’re right, it’s irritating.

After moving from vinyl / cdjs for my first gig out with traktor, this happened to me. I tried changing cds and using using different cables. Had to reboot traktor and then it was fine. Only thing I didn’t try was trying to recalibrate traktor.

Has NI made a comment on why this is and any solutions?

Some mentioned to me that this is due to the cables being plugged in the wrong way round?? Anyone else heard this.

this is the first thing you should try

quite often yes, you can tell from the scopes

I know when I had a loose connection in one of my RCA’s on my 1210’s it used to do the same thing when it lost signal from it. Maybe double check if the RCA’s are good. I dnno

Sadly there gear was locked in, one cdj with no cables and the one that was setup it turns out it was wrong, at that point very stressed. At least I know for next time.

Can someone explain how this actually happens? Thats actually pretty cool though. I can imagine that its freaking annoying though. dont play with time code so i didn’t actually know this was possible) :smiley:

Yes this is possible. You can tell if the plus and minus cables are misconnected by looking at the calibration circle. If they almost touch at the top right or lower right then they are the wrong way. This can lead to reverse play.

Timecode circles must only touch at the Top Left.

That’s the issue. The easiest thing to do is recalibrate but people never seem to do this in favour of reconnecting the soundcard. Baffles me.

It is standard advice from NI and from Mods on the forum that when changing medium you HAVE to recalibrate. This was in the manual, dunno if it still is.

Yeah many times. Recalibrate :wink: