Noctua Announcing PC Fans With Active Noise Cancellation

Subject: General Tech | May 30, 2012 - 09:58 PM |
Tagged: quiet, pc case, noise cancellation, noctua, fans, air cooling

Enthusiast PC fan manufacturer Noctua has announced a partnership with RotoSub to produce fans with active noise cancellation technology. They two companies have already developed a prototype chassis fan that uses fan blade modulation and a series of stationary blades in addition to the moving fan blades to improve performance while keeping the noise down. The noise canceling fan prototype will be shown off at Computex 2012 in Taipei next month (booth J1312 in Exhibition Hall 1F).

In a recent press release, RotoSub and Noctua have announced a “strategic partnership” to develop and market a line of Noctua fans with a new noise cancellation technology from RotoSub. The technology in particular is called the RotoSub Acive Noice Control (R-ANC). It uses phase cancellation principles to cancel out the annoying hum (or whine in those smaller server fans that sound like jet engines) given off by the fans. The fans do this by slightly modifying how the blades spin using proprietary algorithms (hopefully they will release more information on exactly what is going on there), and by including physical features like the stationary set of fan blades behind the moving set of blades.

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The prototype Noctua NF-F12 fan that will be on display at Computex 2012.

Mårten Oretorp, RotoSub CTO stated that the company is aiming to achieve 80% more airflow and 120% greater static pressure than the Noctua NF-F12 fan by incorporating the company’s ANC technology. Noctua is licensing the RotoSub technology, which is claimed to deliver better noise-per-performance ratios than can be accomplished by physical aerodynamic improvements alone.

Further, Noctua CEO Roland Mossig stated “it has always been our goal to push the boundaries of acoustic optimisation and this partnership will allow us to reinforce our technology leadership in the field of premium grade PC cooling equipment.”

RotoSub hasn’t detailed the algorithms but they do have hints of information on their page including a video demonstration of the fan and an animation that shows the “anti-sound” being generated by the fan itself to cancel out the annoying fan noises that it produces. The video can be seen below.

It is an interesting concept, and I hope that it works. While moving to watercooling has cut down on the number of fans I’m using in my desktop, it is still not anywhere near what I would call quiet. Stay tuned for more information once the prototype is shown off at Computex 2012.

Source: Rotosub

Noctua's cool new triplets

Subject: Cases and Cooling | October 28, 2011 - 02:24 PM |
Tagged: noctua, NH-U12P SE2, NH-D14, NH-C14

Noctua have recently released three new coolers, the NH-U12P SE2, the NH-D14, and the NH-C14, all of which do the same job but in different ways.  The Tech Report noticed the colour scheme was very similar to a certain uniform, though the fans have much better airflow than Captain Antilles' throat. The NH-U12P SE2 is 940g, 120 x 126 x 158 mm and uses a 120mm fan, the NH-D14 is a dual tower design with two 140mm fans, is 1240g and 140 x 157.5 x 160 mm and finally the NH-C14 has the heatsink and 140mm fan horizontally aligned, 140 x 166 x 130 mm and weighs in at an even 1000g.  Check out the full review at The Tech Report.

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"We rarely review CPU coolers here at TR, but we've spent a few months working with a trio of Noctua designs that are really quite impressive. Let's take a closer look to see how they fare."

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