Microphone Self Noise Test

The purpose of this sequence is to measure the self noise of a condenser microphone. To do this we use the spectrum analysis step and a power sum calculation to derive an RMS rating for the unit under test.

The sequence has several parts, a few of which are optional. The first section begins by prompting you to enter your mic preamp’s gain. If your preamp does not have a gain setting with labeled detents you may wish to use the “Amplifier THD + N” sequence located in C:\SoundCheck 18.1\Sequences\Electronics\ to determine this value. The following part tests the preamp’s self noise so that the system can determine whether you have a high enough signal (signal being the microphones self noise) to noise ratio to accurately measure your microphone.


Microphone Testing – an overview

This webinar outlines the basics of microphone testing in SoundCheck. It covers two main methods for measuring frequency response, discusses directional measurements, and reviews the SoundCheck sequence for measuring microphone self noise. Presented by Brian Fallon, Listen, Inc. Status: Recorded. Watch Webinar