USB Device with Microphone + Button to send keyboard combination

Projects General Guidance
1

Hi there!

I'd like to create a device that works as usb microphone for the computer, and that in addition has a button that once pressed sends a keyboard combination to the computer.

So a device with a microphone and a button, that you can connected to the computer via USB cable, ideally a usb c, and that in addition to working as a normal microphone, it is capable of sending keypress combination to the computer at a press of the button that is the device (as if the user were pressing a keyboard combination).

How should I approach this?
And which is the smallest board would allow me to do this?

Thanks in advance, any advice on where to start will help.

2

About the keyboard you can do with this: Keyboard - Arduino Reference

All you need is an 32u4 board.

The microphone thing, I would rather do it with an amplifier circuit (LM324 maybe?) and use the mic/line inputs, just make sure about the impendances.

3

The Arduino USB port does not support audio streaming.