My home studio has developed a electronic whine from the computer hard drive onto the tracks. I'm using an HP computer with Windows 7 through either a M-Audio or Presonus Audiobox USB interface. I go from the interface to a Boss BR1600 where I do the mix. I use two KRK RP5 monitors.
I've tried to think of anything I've changed but can come up with nothing. I use a USB cable to power the interfaces from the computer. I have the 2014 version of BnB and RealBand.
I have recorded and produced several CD projects without any noise issues but something has happened!
I would appreciate any help as I have some jobs waiting.

KnightSounds