Noise when opening Cubase AI / Imac / Steinberg Ur22 mkII

Steinberg Hardware
1

Hello everyone,

After days of reading articles, trying many things on my material, I finally come for help.
I recently bought :
Imac OS X Yosemite 10.10.5
Steinberg UR 22 mk II
Yamaha HS 80M

I downloaded every last driver for Cubase AI 8 and USB/firmware.

My problem is :
a noise appears everytime i open Cubase. It disappears when closing Cubase.
That noise does not seem to be modified by electric connections (every monitor, and Computer is on a separated wall power), my cables are new ones, made for monitoring.
That noise is not linked to any instrument plugged in my audio interface.

It sound like a high pitched buzz, and is permanent.
A second sound can be heard, and its pitch is modified by changing buffer size.

When i play a youtube music, there also an annoying sound behind the song, it’s not the same as with cubase, but it’s still there…


May someone help me ? :wink:

2

when you starting Cubase, Cubase will automatically initiate or work with any kind of the UR-Series, if it´s connected to the laptop. Cubase detect when a UR-series-audio-interface is there to work with and will get connected to this. I guess
there´s something with your UR22mkII. do you got phantom power and hi-z input on your UR22mkII switched off?

3

Yes, phantom power is off.

I red a lot about noises with Imac, could it be coming from my audio interface ? It’s connected to my computer with USB, some people describe ground loops with these.

I tried everything and it’s always the same, maybe a ground usb isolator could do the work ?

Thank you for your answer

4

we cant know where this noise is coming from by your insessioning. maybe its the iMac, but even so it could be an issue of the UR22mk. … did you tried to choose another audio-driver( for Cubase actually and/or even as standard for your computer? maybe you should reset the driver, by selecting an other audio-driver and then back to the installed driver.
i really recommend a professional D.I.-box for recordings, but i think in this case it doesn´t come from electromagnetic noises or annoying signals, there´s something go crazy in your computer or it´s an hardware-issue, either in the pc or in the UR22mkII.

5

install newest driver! not the one that comes with cd,

6

Hello everyone,
I did install all latest drivers, but finally i found the problem.
It has nothing to do with cubase or Steinberg Ur22, it’s a cable issue. There was a ground loop between monitoring and the usb audio interface.

I’m glad everything works perfect now.
Thank you all for your advices !

7

that´s the only thing, what we´ve all wanted. :wink:

8

Where exactly does Stienberg state the system requirements for the UR22MKII including clock speed?

9

@ johndtomlinson
that´s all i can find:

clock speed? do you mean MIDI or Word clock or something else?