Noctua, a specialist cooling company which makes “sound optimised premium components”, has partnered with RotoSub to produce the world’s first CPU cooler with active noise cancellation (ANC) built-in.
The Noctua ANC Project is based upon “the award winning” NH-D14 heatsink by the company. The heatsink assembly combines with an NF-A14 140mm fan and a FocusedFlow system paired with anti-vibration pads, ANC magnets, an ANC microphone, a RotoSub ANC controller and custom hood assembly to complete the cooling system.
As is common with ANCs the system uses a microphone to listen to fan vibrations. However sound of these vibrations is cancelled out, phase destroyed, by adjusting an electromagnet to influence tiny magnets installed at the tip of each fan blade. “The patented RotoSub® ANC technology allows the fan itself to emit the anti-noise signal through minute modulations of the fan blades, which are achieved by switching on and off a coil within the fan frame that interacts with magnets inside the blade tips. This way, the anti-noise comes from the exact same position as the original noise and precisely matches its phase and rotation pattern,” explains a Noctua blog post.
The Noctua ANC Project is based upon “the award winning” NH-D14 heatsink by the company. The heatsink assembly combines with an NF-A14 140mm fan and a FocusedFlow system paired with anti-vibration pads, ANC magnets, an ANC microphone, a RotoSub ANC controller and custom hood assembly to complete the cooling system.
As is common with ANCs the system uses a microphone to listen to fan vibrations. However sound of these vibrations is cancelled out, phase destroyed, by adjusting an electromagnet to influence tiny magnets installed at the tip of each fan blade. “The patented RotoSub® ANC technology allows the fan itself to emit the anti-noise signal through minute modulations of the fan blades, which are achieved by switching on and off a coil within the fan frame that interacts with magnets inside the blade tips. This way, the anti-noise comes from the exact same position as the original noise and precisely matches its phase and rotation pattern,” explains a Noctua blog post.