This board provides 12-bit sampling and playback of audio and comes with an example sketch for a digital ring modulator voice changer effect (think Daleks and Cybermen, and many other robotic voices). Many other voice effects can be achieved with this board and more example sketches will be available soon.
The board now comes fully assembled AND includes the required electret mic to save you the trouble of ordering that elsewhere and paying an extra shipping charge.
In addition to this board, you will also need the following:
I wanted a board that offloaded the ADC/DAC work to external chips so that the Arduino was capable of more processing, allowing for real-time adjustments to the sound manipulation logic i.e. adding pots to control pitch and frequency. The board also has a connector for external LEDs, which is very useful when you need to trigger lights along with the sound effect. This is very useful for cosplay or Halloween costumes!
As far as I know this is the only board currently available targeted specifically at making voice changers with corresponding light effects.
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I'm a professional software developer but enjoy tinkering with Arduoinos, electronics and 3D printing in my spare time. I also happen to be a Doctor Who fan. After building a Dalek back in 2012 I embarked on a quest to create a realistic voice changer based on the Arduino. It took me a long time and I wanted to share the results with other Whovians looking for the same thing, so I created this Tindie store to sell my Arduino Voice Changer Shield.
I hope to come up with other cool Arduino shields over time.