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gilesfordcrush
Total Posts: 4
Joined 02-11-2014 status: Newcomer |
Hello, I have a MOX6 that is connected to a PC laptop running Cubase on Windows 7. I can hear a high pitched hum/whine from the keyboard. It isn’t that loud, but it is very annoying. If I disconnect the USB lead that connects the keyboard and the laptop the sound stops. Has anyone else encountered this problem? I’d really like to fix it. Giles |
meatballfulton
Total Posts: 3022
Joined 01-25-2005 status: Guru |
This is a common problem with USB in general...not just with the MOX. If you search the forums here you will see many threads asking the same question. It is a grounding problem. The USB cable connects the grounds of the computer and MOX together. If the two grounds are in fact not the same, you get a voltage flowing between the two and this gets into the audio stream. While most audio gear is built with attention paid to power supply grounding, computers often are not. Grounding issues are a complete pain in the butt to track down and fix. There is no single solution that works for everybody. First things to check: 1. Are the MOX and laptop plugged into the same outlet? 2. If you run the laptop off the battery does the noise stop? |
meatballfulton
Total Posts: 3022
Joined 01-25-2005 status: Guru |
Here is a link to an article that describes one possible fix. |
gilesfordcrush
Total Posts: 4
Joined 02-11-2014 status: Newcomer |
Thank you for the reply. I’ll have a look at the article link you posted, and I’ll try running the laptop from it’s battery - good idea! G |
zpink
Total Posts: 427
Joined 08-02-2014 status: Enthusiast |
I had that problem too, breaking the shield on the USB cable reduced it a LOT. There is still a faint hum but not more than what I can live with.
But cutting the shield made it good enough for now. :-) |
gilesfordcrush
Total Posts: 4
Joined 02-11-2014 status: Newcomer |
Hello, I have managed to remove this whining noise. I stripped back the outer shielding on the cable, and also cut the black cable. Now there is no noise whatsoever. I’m very pleased. I still have full functionality to the Mox via Cubase. What a simple fix too. I was looking at some expensive cables, and some of the widgets that claim to remove this noise, all I needed was two minutes with a scalpel. Many thanks for the assistance. G |
zpink
Total Posts: 427
Joined 08-02-2014 status: Enthusiast |
Hi there
Glad it worked 100% for you!
|
autowah
Total Posts: 9
Joined 06-28-2014 status: Newcomer |
I have the same problem. Also tried to cut the black wire inside the USB cable, but it only helped outside of my DAW (Cubase 7.5). As soon as I start Cubase the high pitch noise comes back. Very annoying:( |