Acoustics, Noise, and Vibration Research Area


Apparatus designed specifically for testing tire noise on pavement


A reflective room measures the noise given off by car parts

Everyone needs some peace and quiet.

Researchers at Herrick study how everyday things make noise -- cars, computer fans, industrial equipment, building ventilation, etc.  Precise measurements allow for experiments in reducing unwanted noise, making life more pleasant for everyone.  These facilities include:  

  • Fully anechoic room (12' x 12' x 12')
  • Reverberation room (25' x 20' x 18')
  • Hemi anechoic room (41' x 27' x 18')
  • Audiometric room for sound quality testing (8' x 8')
  • Acoustical materials laboratory with several types of impedance tubes
  • Tire pavement test apparatus (TPTA) for measuring tire noise on realistic pavements at speeds up to 50 km/h
  • Two-wheel chassis dynamometer with 67 inch rollers
  • Anechoic wind tunnel with 18 by 24 inch test section and flow velocity up 120 mph
  • 64-microphone acoustical holography array and 90 channel data acquisition system
  • Various microphones, accelerometers, shakers, a laser vibrometer, high speed camera

The future

While this research dovetails nicely with the work being done in the Vibration Lab and the Perception-Based Engineering Lab, most of the acoustics facilities are housed in Herrick's original 1920s-era horse barn.  Phase II of Herrick's expansion will bring the acoustics wing into the new building, with brand new custom-designed sound-testing facilities.  Want to get involved?  Find out more here.

Herrick Labs  •  177 S. Russell St., West Lafayette, IN 47907-2099  •  (765) 494-2132  •  herricklabs@purdue.edu