Vernier Software and Technology
Vernier Software & Technology

Read Microphone Data


In this exercise, you will create a simple program using the Analog Express VI to collect data for a length of 0.1 second at a rate of 10,000 samples/second. This timing configuration results in 1001 data points. It is important to note how the data are displayed in this example. Namely, this is an example of multi-point data collection, where all data points are displayed on the graph following the collection of all 1001 data points. The Express VI is designed to return data in this multi-point method whenever the data-collection rate is greater than 200 samples/second. At slower rates, data are returned on a point-by-point basis.


In this exercise, you will

  • Create a LabVIEW VI.
  • Become familiar with the LabVIEW environment.
  • Acquire Microphone data.
  • Display data in a graphical form.

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 2 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.

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