Key to this build is the electret microphone and opamp which feed an Arduino. This allows the sound from the piano to be processed in order to affect the color and intensity of the LED strips.

Maybe you can see where this is going: If you can make a microphone using electret materials, and there are electret fibers in an N95 mask, you can use a mask to make a microphone.

An electret mic contains a small JFET to amplify the signal coming from the microphone diaphragm; the specific JFET is selected by the manufacturer to ensure the microphone has the right gain and ...

Global Microphone Market Global Microphone Market Dublin, Aug. 07, 2023 (GLOBE NEWSWIRE) -- The "Microphone Market by Technology (MEMS, Electret), MEMS Type (Analog, Digital), Communication ...

An electret microphone that produces the same flat response across a wide range of frequencies and operating conditions could be built for pennies.

Curiosity and grit propelled the invention of the electret microphone, the most widely used microphone in technology today.

Kanye West falsely claimed Hitler invented the microphone. Most microphones in use today are thanks to James West, a Black inventor with over 250 patents to his name.