Vernier Software and Technology
Vernier Software & Technology

Continuous Read and Analyze Microphone Data


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 activity features the following Vernier sensors and equipment.

Additional Requirements

You will also need

Hands-On Introduction to NI LabVIEW with Vernier

See other experiments from the lab book.

1Open and Run an Example VI
2Read Microphone Data
3Analyze Microphone Data
4Continuous Read and Analyze Microphone Data
5Read Temperature Data
6Above Threshold Warning of Temperature Data
7Create a Temperature Conversion SubVI
8Control Analog Out, Digital Out and Pulse Out
9Build a Sensor Control Program

Activity 4 from Hands-On Introduction to NI LabVIEW with Vernier Lab Book

<em>Hands-On Introduction to NI LabVIEW<sup>™</sup> with Vernier</em> book cover

Included in the Lab Book

Vernier lab books include word-processing files of the student instructions, essential teacher information, suggested answers, sample data and graphs, and more.

Buy the Book

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