Like a fine wine, open source projects improve with age. We've taught this classic shield a new trick: a realtime voice changer! Speak like everyone's favorite baritone Sith lord or sing along with the Lollipop Guild. The Wave Shield has long been a staple among makers' Halloween projects. This latest addition really cinches it!
There are three central components to this project:
- Adafruit Metro 328 or Arduino Uno (an older Arduino Duemilanove or “328” Diecimila can be used as well…but not an Arduino Mega nor Leonardo, sorry).
- Adafruit Wave Shield.
- Adafruit Microphone Amplifier Breakout.
You’ll also need basic soldering tools, wire and bits & bobs.
- For sound output you’ll want headphones, portable MP3 player speakers or our Class D Audio Amplifier.
- The example sketch uses a 12-button keypad for triggering pre-recorded sounds. But your application might need just a few simple buttons…or none at all, if you’re only using the voice effect.
- If adding pre-recorded sounds, you’ll also need an SD card containing WAV files.
- A 10K potentiometer is used for setting the voice pitch…or you can simply rig the code for a permanent setting.
- If you want to noodle around with wiring, an extra prototyping shield and stacking headers can come in very handy - solder the wave shield with stacking headers and put the proto shield on top
- For portable use (such as costumes and props), add batteries, battery holders, etc.