Vox Imperium: Stormtrooper Voice Changer

Contributors: Shawn Hymel
Favorited Favorite 9


The Empire's finest have a distinct nasal and mechanical voice when talking through their intercoms. As you work diligently on that Stormtrooper costume and apply for the 501st, you can up your armor game by including a voice changer.

Stormtrooper helmet

There are pre-built solutions available for budding Stormtrooper cadets, but most are bulky and sometimes require wiring outside the helmet. However, with a little bit of coding and wiring, you can build your own inside a helmet using SparkFun parts.

Required Materials

In this tutorial, we'll build the voice changer on a breadboard for testing. Each helmet will be different, so the wiring will have to be adjusted. The parts list below details what you'll need for the breadboard prototype.

Update: The MEMS Microphone works way better than the Electret Microphone for removing audio feedback in the system.

Note that from the resistor kit you'll need:

  • 1x 2.2kΩ
  • 1x 4.7kΩ

Suggested Reading

We suggest you be familiar with the following before embarking upon this tutorial: