Wilson Ihrig is a noise, vibration and acoustical consulting firm with offices in California (Los Angeles and SF Bay Area), Seattle and New York. Founded in 1966, and certified as a Small Business Enterprise (SBE), we offer professional consulting services on a wide range of acoustical and vibration issues. We currently employ a staff of 24, which includes highly-trained and experienced professional specialists in acoustics and vibration. Our staff maintains the highest professional standards and keeps abreast of new technological developments, governmental codes and regulations, and new applications of proven technologies. We have experience on thousands of projects, earning us an international reputation for excellent design, practicality, and sensitivity to clients’ needs. Consulting service areas include: mechanical equipment noise and vibration, structure-borne noise and vibration, industrial noise, architectural acoustics, transportation noise and vibration, and vehicle noise.vironmental services include: evaluation of noise and vibration impacts on communities; and writing the noise and vibration sections of EIR/EISs. We are equipped to perform all types of acoustical and vibration measurements, including narrow band spectrum and octave/third octave analyses, digital processing of noise and vibration data, transfer function and mobility testing, mechanical impedance testing, statistical analysis, extended noise surveys. Additional services include dynamic stress and strain measurement and evaluation, dynamic deflection tests, modal analyses, air pressure transient measurements, acoustic absorption testing, material damping measurements, and vibration isolator testing.