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Noise control and sound quality facilities

Product development and measurement facilities for noise control and sound quality engineering

We have top-notch experimentation, development and measurement facilities. They include 55 m2 semi-anechoic laboratory and 120 m² acoustically treated product development laboratory.
Our state-of-the-art mobile and laboratory measurement equipment include calibrated sets of microphones, multi-channel data acquisition devices, and analysers. Additionally, we have dedicated tools to measure sound intensity, vibration and particle velocity fields.

Semi-anechoic laboratory

  • 5 m x 11 m x 6 m (W x L x H)
  • All surfaces except floor absorbed with 1 m deep layer
  • Sound absorption > 99,9 % at > 100 Hz,
    according to ISO 3745 -standard
  • Air conditioning

 

 

Product development laboratory

  • Floor area 120 m², height 6 m
  • Acoustically treated surfaces
  • Large (5.5 m x 4 m) sound-insulated entrance door
  • Exhaust gas removal
  • 200 kW 3-phase supplies, up to 400 A outlets

 

 

 

Reverberation laboratory

  • In connection with product development laboratory
    for sound insulation measurements
  • Sound power measurements
  • Sound absorption measurements

 

 

 

 

 

Outdoor testing area

  • Noise measurements for big outdoor machinery
  • Pass-by  noise
  •  

 

 

 

Measurement equipment and analysis software

  • Calibrated microphones and their preamplifiers
  • Weather resistant microphones for long-term outdoor measurements
  • Exciters, impact hammers, accelerometers and force sensors for vibration measurements
  • Impedance tubes for material acoustic characterization
  • Sound intensity measurement tools
  • Microflown particle velocity probe, Scan & Paint visualisation and in-situ material acoustic properties measurement –software
  • LMS SCADAS system for multi-channel data acquisition
  • RION 8-channel field-ready recorder
  • Listening test facilities
  • Artificial head and torso simulator for binaural measurement
  • Special microphones to record binaural response
  • Brüel & Kjær Sound Quality and Psychoacoustic Test Bench
  • LMS Test.Lab (Data acquisitions and signal analysis software)
  • Labview & Compact RIO data acquisition and analysis tools

Further information:
Noise control and sound quality R&D

CONTACT US

P.O. Box 1000, FI-02044 VTT, Finland
Tel. exchange +358 20 722 111
Opening hours Mon - Fri 8:00 - 16:30,
UTC +3 time zone

CUSTOMER SERVICE

info@vtt.fi
Tel. +358 20 722 7070
Opening hours Mon - Fri 9:00 - 11:00 and 12:00 - 15:00,
UTC +3 time zone