[OPEN] DJM-900nexus USB Crackling problem

My DJM-900nexus, which I've owned for a few months now, has a bit of a crackling issue when I'm using it as a USB soundcard. If my mixer is turned on before my computer is, there is no issue at all, as well as when I'm using phono/line/digi. I've just been dealing with restarting my computer every time i want to use the mixer as a soundcard. At first I was just excited about my new mixer and coped with this, but over time it has felt like more of an inconvenience that i cant just fire up ableton, plug in, and play. I'm running the latest firmware, but OSX snow leopard on my macbook pro, which may be the root of the problem. although the fact that my mixer works when it is turned on and connected before the computer powers up leads me to believe it may be something else.

Thoughts?

Duncan Murray April 12, 2014 02:50

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Hi I am having a similar problem. When I connect my DJM-900 Nexus via USB to my Mac to record with Audacity the recording is happening but I got a crackling over the top of the recording?? I have tried 3 different cables. The USB ports on my Mac all work with other things plugged in so know it can't be those. The mixer is less than 3 months old and this is the first time I have used the USB port. I have re-installed Audacity and followed instructions and tutorials on this forum and on youtube and have this continuing problem. Any help greatly appreciated otherwise I will need the mixer to be looked at to make sure it is not that. Please help as getting very frustrated

Danny Monk June 02, 2014 08:16 0 votes

Have you updated the firmware of the mixer? There was an improvement that addressed this very issue.

Instructions and information are available here.

Pulse June 03, 2014 23:42 0 votes

I updated the firmware not too long ago, currently version 1.31, and unfortunately it didn't fix the problem. however, I found that in switching my buffer size to anything larger than 512 out of ableton the crackling almost entirely stopped. of course this causes some latency and isnt ideal but it's a lot better than having to restart the computer every time i want to use my mixer

Duncan Murray June 04, 2014 00:30 0 votes

Can you post your hardware specs? Go to the Apple icon (top right), hold the Option key and click "System Information." Copy and paste the first page down to the MEMORY line (nothing below is needed).

Also, which version of the driver are you running?

Pulse June 05, 2014 04:56 0 votes

Hardware Overview:

Model Name: MacBook Pro

Model Identifier: MacBookPro5,4

Processor Name: Intel Core 2 Duo

Processor Speed: 2.53 GHz

Number Of Processors: 1

Total Number Of Cores: 2

L2 Cache: 3 MB

the driver is version 1.3.0

Duncan Murray June 15, 2014 22:25 0 votes

What is the version of the OS you're running? Tx!

Pulse June 16, 2014 00:41 0 votes

10.6.8

Duncan Murray June 16, 2014 03:46 0 votes

At this point I'm not 100% sure what the problem is, you may consider upgrading from 10.6.x but given the age of your computer, that could also be an issue (although it shouldn't, it's more likely the OS).

Pulse July 10, 2014 22:21 0 votes