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Microphones and Acoustics

Frequently Asked Questions

Get your most commonly asked acoustics questions answered.

Section I: Definitions and Terminology
Section II: Microphone Recommendations
Section III: Calibration and Testing
Section IV: Specification Clarifications
Section V: Specialty Microphone Applications
Section VI: Maintenance and Handling

If you don’t see the answer to your question, call our 24/7 SensorLineSM 716-684-0001 to speak with an application engineer or visit Ask the Acoustics Experts.

When I receive a PCB© calibration certification with my microphone, can it be used, as is, or do I need to calibrate it at my test site?

It is recommended that a single point calibration be performed in the field, both before and after your test. Testing in the actual environment helps account for changes to the sensitivity stemming from fluctuations in temperature, humidity and atmospheric pressure. If a calibration is done with a speakerphone (Models CAL200 or CAL250) or a pistonphone, both before and after the tests, there will be a much higher degree of confidence that the test results are valid.

When I receive a PCB© calibration certification with my microphone, can it be used, as is, or do I need to calibrate it at my test site?

It is recommended that a single point calibration be performed in the field, both before and after your test. Testing in the actual environment helps account for changes to the sensitivity stemming from fluctuations in temperature, humidity and atmospheric pressure. If a calibration is done with a speakerphone (Models CAL200 or CAL250) or a pistonphone, both before and after the tests, there will be a much higher degree of confidence that the test results are valid.