Noise Source Identification

For measurements close to a source, acoustic holography provides fast and accurate acoustic maps of sound pressure, sound intensity and other sound field parameters at low to medium frequencies (100 Hz to 2 kHz).

A key requirement for combat ships and submarines, Self-noise Monitoring System (SNMS) help to minimize the noise and vibration of a vessel and its on-board systems. HBK has decades of experience in permanently installed SNMS to reliably identify and analyse noise sources.

Acoustic detection and identification techniques continuously become more advanced and sophisticated. As they evolve, so must acoustic stealth strategies.

Reduction of noise emissions is a critical technology for aircraft manufacturers and various analytical, empirical and numerical tools exist to help in the design of quieter aircraft.

For many vehicle manufacturers, wind-tunnel measurements are the only way to recreate real-world conditions for testing model and mule cars.

An easy, one-shot measurement process for mapping the relative sound pressure and sound intensity contribution from a source.

To map noise sources on flying aircraft, Brüel & Kjær’s flyover beamforming software traces sound to individual engine or airframe sources.

Designed primarily for use in the aerospace and automotive industries, BK Connect Acoustic Camera is a versatile and complete hand-held system for real-time noise source identification in almost any acoustic environment.

Sound intensity mapping is one of a number of noise identification techniques available to engineers working on noise, vibration and harshness problems.

Ideal for in-cabin noise and leak detection, spherical beamforming is a quick way of mapping relative sound pressure and sound intensity arriving from all directions.

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