Design quieter fans by seeing where noise starts

Introduction

Designing cooling fans that sound as good as they perform

Cooler Master develops PC cooling hardware that runs close to the user, often just inches from their ears. That changes the stakes.

It’s not enough for a fan to move air efficiently. It also needs to sound right in real use. Even small tonal peaks or vibrations become noticeable, and annoying, when you sit next to them for hours.

That’s where Cooler Master saw a gap. Their products could hit every performance target on paper, yet still create a sound profile that didn’t feel right to users.

A gap between engineering metrics and user-perceived sound quality.
Difficulty identifying what changed acoustically between iterations.
A trial‑and‑error culture, where teams don't understanding the root cause.
The need to validate feedback and trace it to concrete behavior.

1 Before and after comparison testing

The CAM64 allowed the team to see how sound sources move or intensify across iterations, directly validating or contradicting their expectations.

2 Recreating real user scenarios

When community members reported specific noise behaviors, at certain fan curves, environments, or use cases, the team could reproduce the exact conditions and measure them empirically, rather than guessing.

3 Identifying noise in high level

With near‑field holography, engineers could select individual peaks on the spectrum and immediately see their origin. Vibrations often occur on extremely small scales, and the CAM64 exposed:

micro‑vibrations,
resonance points,
structural weak spots in frames or blades.

This enabled rapid testing of real solutions, such as stronger frames, tighter tolerances, or structural dampening.

4 Following the Acoustic Design Cycle

Instead of trial‑and‑error, Cooler Master used Sorama’s Acoustic Design Cycle methodology to become consciously competent:

understanding where sound comes from,
how it behaves, and
how to systematically solve it.

Before using an acoustic camera, everything we did was based on reaching specific goals of performance levels. But once we started to look at how our consumers experience the product, which is ultimately always close to their ears, we noticed how important working on the sound profile of our product is.

Matteo Costa Cooler Master Product Specialist, R&D

The outcome

Quieter products without giving up power

With clearer insight into where noise and vibration originated, Cooler Master could make targeted design improvements. The result was product development that went deeper than meeting performance numbers and produced a better sound profile for end users.

As Matteo Costa explains, the Sorama CAM64 helped the team dig deeper when products behaved differently than expected, and when community feedback pointed to very specific situations.

Cooler Master links this approach to the development behind products like the Cooler Master Silencio line of cases and the new Cooler Master SickleFlow fans.

they understand sound behaviour faster
save costs by shortening engineering cycles
solve problems more effectively
create products that deliver performance and a superior user experience