#MAC PRO 2017 FAN NOISE PRO#

'We want to get really great performance where, you either can't hear it, or if you can hear it, it's kind of a pleasant noise.

#MAC PRO 2017 FAN NOISE PRO#

'You can have something at a certain SPL that sounds really good, but you can have something that's actually at a lower SPL that grates on your nerves and sounds really awful,' says John Ternus, VP of Hardware Engineering at Apple and head of the Pro and Pro Display's development. Something loud but pleasantly pitched can be more tolerable than something quiet but irritating. 'There's a bit of math behind it, but you can create broadband noise instead of total noise with that technique.' 'That borrowed almost entirely from automobile tires,' Ligtenberg says. So you don't get huge harmonics that tend to be super annoying.'

'They're still dynamically balanced, but they're actually randomized in terms of their BPF. 'Years ago, we started redistributing the blades,' explains Ligtenberg, Apple's senior director of product design.

In order to let the ridiculous processing power of the ‌Mac Pro‌ reach its potential without melting, Apple engineers had to find new ways to 'exploit the laws of thermodynamics,' according to the report.įor example, the active internal cooling consists of three axial fans in the front of the case and a blower in the rear, all of which had to be developed in-house because off-the-shelf fans would have been too loud. In an interview with Popular Mechanics, Apple engineers Chris Ligtenberg and John Ternus have detailed some of the innovative cooling features included in the design of the Mac Pro and Pro Display XDR, both of which launched earlier this week.

Mac pro 2017 fan noise