Free-field Correction Curves

When a free-field or random-incidence microphone is calibrated by way of using an electrostatic actuator (simulated pressure calibration), the response must be corrected for the field in which the microphone is used - free-field or diffuse-field. You can find the correction values here.

About GRAS Sound & Vibration

GRAS is a leading manufacturer of state-of-the-art measurement microphones. We serve R&D, production engineering, QA and production units within aerospace, automotive, audiology and consumer electronics with strict requirements for microphone accuracy and repeatability. GRAS microphones are designed to live up to the high quality, durability and accuracy that our customers have come to expect and trust.

GRAS Sound & Vibration is represented through subsidiaries and distributors in more than 40 countries and is part of Axiometrix Solutions, a leading test solutions provider comprised of globally recognized measurement brands.

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Contact us

GRAS Sound & Vibration
Skovlytoften 33
2840 Holte (Denmark)
VAT DK27160921

Headquarter | gras@grasacoustics.com
UK & Ireland | sales-uk@grasacoustics.com
USA | sales-usa@grasacoustics.com
China | cnsales@grasacoustics.com

GRAS worldwide