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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.

What is the noise floor of a microphone?

The noise floor of microphone is defined by the cartridge thermal noise specification. It is important to note that the electrical noise of the preamplifier will impact the noise floor of the microphone and preamplifier combination. Other components in the measurement chain, for example power supplies and data acquisition systems, can also be limiting factors and increase the minimal sound pressure that you can measure.

What is the noise floor of a microphone?

The noise floor of microphone is defined by the cartridge thermal noise specification. It is important to note that the electrical noise of the preamplifier will impact the noise floor of the microphone and preamplifier combination. Other components in the measurement chain, for example power supplies and data acquisition systems, can also be limiting factors and increase the minimal sound pressure that you can measure.