From mitigating noise pollution to designing the speaker for your phone, understanding the properties and human perception of sound is critical to creating a pleasant experience for the user and public. 

When proposing a public project like a new power substation or stretch of highway, we can assist in understanding and addressing audible noise.  Similarly, when designing for a workplace or user audio experience, we can help clients consider sound propagation and interactions.  Exponent has both the human health experts who understand the public guidelines and human response to audible noise, as well as the engineers experienced in measuring, calculating and evaluating audible noise levels.  Exponent employs state-of-the-art noise prediction software to calculate sound levels for outdoor or indoor locations, accounting for topography and noise-screening objects.  Our engineers and scientists are experienced in noise mitigation measures and routinely provide evaluations for technical reports, public works project permitting and environmental impact statements.  We can assist with any stage of sound assessment and design/mitigation, pertinent to both audible noise evaluation and acoustic design:

  • Sound measurement
  • Predictive sound modeling
  • Sound mitigation and/or acoustic design guidance
  • Assessment of public well-being/annoyance for audible noise levels
  • Assessment of user audio experience

When designing device audio or applying sound waves in novel ways, we assist with the fine details of acoustic behavior.  Exponent has specialists in acoustics and ultrasonics, including experts in non-destructive ultrasonic evaluation for acoustic telemetry and measurement.  We employ consultants with experience modeling sound and the human ear, including acoustic-structural couplings and thermoacoustic effects.  Our general and unique acoustics expertise includes:

  • Acoustic-structural interactions
  • Ear simulator modeling and design
  • Ultrasonic techniques for medical and engineering applications
  • Acoustic-based fluid flow measurement
  • Non-destructive evaluation of surface roughness
  • Phononic crystals