Electret Microphone

Demonstration circuit for electret microphone connected directly to AUDIO IN.
In this project, students learn the electret microphone operating principles and interface it with myRIO. In the activity, students use LabVIEW to view audio signals, and can observe how different sounds affect the signal. Students follow steps to demonstrate correct operation of the electret microphone, watch videos involving theory, and participate in a short activity after each video.
by Dr. Ed Doering | Rose-Hulman Institute of Technology
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This is module 9 of 39 in the course set, NI myRIO Project Essentials Guide.

STUDENT MATERIALS

 
  • PDF Project Manual
  • LabVIEW Code
  • Video Tutorials (linked within Project Manual)
 

SKILLS REQUIRED

 
  • Basic LabVIEW familiarity
  • Basic circuit building

Related Resources

EXPLORE

These labs have related concepts that can expand student experience.

myRIO

Provides reconfigurable I/O that allows you to teach and implement multiple design concepts with one device.

LabVIEW

An integrated development environment designed specifically for engineers and scientists.

myRIO Starter Accessory Kit

Includes sensors and components needed for basic projects. Students have the opportunity to engage in custom projects to learn sensor and actuator integration and basic programming.

Required Software

Download Academic Software, Learn About Software Licensing
  • myRIO Software Bundle (2013 or later)
    • LabVIEW (Requires license)
    • LabVIEW Real-Time Module (Requires license)
    • LabVIEW myRIO Toolkit
 

Required Hardware

Purchase Engineering Education Products
  • myRIO (enclosed) - View Specifications
  • myRIO Starter Accessory Kit
    • Kit components included in this module:
      • Electret Microphone
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