Performing Digital Microphone Measurements without Reference Microphones

Set up the test system, perform calibration, and use NI Audio and Acoustics Test Software to perform microphone measurements using a chirp signal and without reference microphones.

Audience

  • Production Test Engineers or Integration partners who need to develop an Audio and Acoustic Test System.

Task-based objectives

  • Setting Up the Test System

  • Performing Calibration for Digital Microphone Measurements

  • Performing Digital Microphone Measurements without a Reference Microphone

  • Troubleshooting Common Issues



Hardware and Software

For the best experience, please ensure that your system meets the minimum requirements.

No hardware or software is required to take this course, though if you would like to follow along with the demonstrations, here is the list of recommended hardware and software:

Software

  • LabVIEW 2018 to 2021
  • TestStand 2019
  • LabVIEW PDM Acquisition Toolkit 2021 Q4
  • LabVIEW Sound and Vibration Toolkit 2018 to 2021
  • Audio and Acoustics Test Software (released July 1, 2022)

Hardware

  • C Series Sound and Vibration Module (NI DSA)
  • C Series Voltage Output Module
  • PXI Sound and Vibration Module (NI DSA)
  • PXIe-7820R/7821R Digital Reconfigurable I/O (RIO) Module
  • USB-7845R/7846R Multifunction Reconfigurable I/O Device