Product noise

Product sound and noise emission need to be designed with both the user’s subjective experience and objective parameters in mind.

Noise and sound have become critical marketing factors for many products. Indeed, they are often key product differentiators. Too much noise or the wrong sound profile can affect consumer perception and acceptance of a particular brand. Moreover, manufacturers must comply with increasingly stringent noise legislation and labelling requirements, and document the methods used to determine the data. Therefore, when designing product sound and noise emission it is essential to take into account not only objective parameters but also the user’s own subjective perceptions.

Noise targets and sound quality profiles

At the design stage of a product’s development cycle, noise targets and, often, sound quality profiles are set. Failure to meet these targets can be costly and time-consuming. At best, it means prolonged time-to-market or delayed production; at worst, it could mean lack of consumer acceptance or even withdrawal of a product from the market.

Whether you produce washing machines, cars or heavy machinery, Brüel and Kjær can provide you with the necessary tools to quantify noise, to identify and troubleshoot noise sources, and to optimize product sound.

Electroacoustics
To deliver quality sound, it is essential to analyze the sound produced and captured during R&D. A multitude of parameters are critical to authentic sound reproduction.

Telephone Headset And Handset Testing

Testing Of Hands-Free Devices

Headphone Testing

Hearing Aid Testing

Loudspeaker Testing

Smart Speaker Testing
Sound Power: Measurement and Analysis
Customer awareness of general noise and its related sound power have never been higher. Product noise levels are increasingly more important to buyers of tools, appliances, machinery and other equipment.

Sound Intensity Based Sound Power

Sound Pressure - Free-field Based Sound Power

Sound Pressure - Reverberation Room Based Sound Power
Noise Source Identification
By tracing noise back to very specific components, engineers can target their mitigation efforts more precisely.

Sound Intensity Mapping

Beamforming

Acoustic Holography

Spherical Beamforming

Real-Time Noise Source Identification With Acoustic Camera

Wind Tunnel Testing – Automotive

Wind Tunnel Acoustic Testing – Aerospace

Ramp Noise Testing

Flight Certification

Flyover Noise Source Identification

Static Engine Noise Certification

Underwater Acoustic Ranging

Self-Noise Monitoring Systems (SNMS)
Vehicle Pass-by Noise
Vehicle Pass-by Noise characterizes the overall acoustic signature of a vehicle requires measuring it in operation – as it passes stationary microphones.
Sound quality
With higher sound quality, overall perceptions of product quality are raised – leading to increased sales and greater brand equity.
Acoustic material testing
Acoustic material testing provides insights into their characteristics, to better understand the contribution it will have on the overall acoustic experience of a room, vehicle, etc.