Attention: Safety Recall of Vernier Go Direct Charge Station. Click to learn more.



Continuous Read and Analyze Microphone Data

Experiment #4 from Hands-On Introduction to NI LabVIEW™ with Vernier

Education Level
High School


In this exercise, you will create a simple program using the Analog Express VI and the Spectral Measurements Express VI to continuously collect microphone data and continuously perform an FFT analysis on the data. A Fast Fourier Transform (FFT) is a mathematical algorithm commonly used in digital signal processing to determine the dominant frequencies in a complex waveform.


In this experiment, you will

  • Create a LabVIEW VI to continuously collect and analyze data.
  • Incorporate LabVIEW Express Analysis functions.
  • Use a While Loop to keep collecting and analyzing data until stopped by the user.

Sensors and Equipment

This experiment features the following sensors and equipment. Additional equipment may be required.

Ready to Experiment?

Ask an Expert

Get answers to your questions about how to teach this experiment with our support team.

Purchase the Lab Book

This experiment is #4 of Hands-On Introduction to NI LabVIEW™ with Vernier. The experiment in the book includes student instructions as well as instructor information for set up, helpful hints, and sample graphs and data.

Learn More