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However, desktop and tower PCs require a mains earth, and you cant remove this for safety reasons. If the whine only reappears when you plug the USB cable back in (or even touch the metal of its plug to the chassis of the other gear), youve confirmed the culprit. Try unplugging the amp and USB cable, and then listening to the headphone output on the Yamaha MW10. Youve already been systematic by unplugging all the gear except the computer, monitor, mixer, and amp, to rule out other ground-loop possibilities. They may not be touch-sensitive, but the motorised faders on the Behringer BCF2000 are a bonus at this price point. The whining noises you hear are due to a ground loop, and you may also notice them changing when you move your mouse, access your hard drive or update your graphic display. Other stuff in my studio includes some outboard hardware powered by wall-wart PSUs, but Ive had these switched off and disconnected and

To date I have isolated or switched off all other equipment and had only the computer, amp, mixer and LCD monitor powered from one surge-protected domestic plug board going to its own mains power socket in my small bedroom studio, but the noise persists.Īpart from this noise, all the audio works fine via the loaded MW10 drivers. Laptop Speakers Making High Pitched Noise Update Your Graphic Laptop Speakers Making High Pitched Noise By abagmoman1983 Follow | Public