Scan & Listen

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Human ears are only sensitive to changes of sound pressure. With Scan & Listen, particle velocity is now also made audible!

A combination of a Microflown with the Scan & Listen device is making our ears capable of hearing particle velocity! Listen to what no one heard before. Identify noise sources even in situations where high levels of background noise are present. Locating sound sources in practical environments can be difficult. Especially in situations with non-stationary sources like squeak  & rattle. The Scan & Listen  is a measurement technique based on short quick scans, instead of time consuming series of measurements. Often just by listening to the particle velocity, you can obtain better results, than with an extensive and complex measurement campaign.Scan & Listen offers an intuitive method for sound source localization. Moreover, acoustic leakages can be detected fast and accurately. Quick, fast and mobile are keywords describing the Scan & Listen as well as it is practical, simple and handheld. 
The system has the option to record simultaniously both the particle velocity and sound pressure while still providing real time playback.


  • Direct listening to particle velocity
  • Low susceptebility to background noise and reflections
  • Easy finding of sources; also non stationary transients such as "squeak & rattle"
  • Easy finding of modes / vibration pattern determination
  • Easy and quick in use
  • Portable
  • Large machinery
  • Acoustic enclosures
  • Automotive
    • Powertrain
    • Vehicle Interior
  • Electronic consumer goods & appliances
    • Washing mashine
    • Dishwasher
  • Medical equipment