

There are a couple of different reasons that the Raspberry Pi does not feature any support for a microphone in its hardware. There are various projects that a microphone comes handy with, such as setting up your Raspberry Pi as an Alexa or Google assistant. You could alternatively purchase a HAT that expands the audio capabilities of the Raspberry Pi with the addition of analog input. A USB microphone is likely to be a cheaper and easier way to get a microphone working with your Raspberry Pi. Purchase a USB microphone or a USB soundcard.

To make use of a microphone with the Raspberry Pi, you will need to do one of two things. One of the components that most people will notice is missing from a Raspberry Pi is that lack of any analog inputs.
