Raspberry pi enthusiasts looking for a Raspberry Pi Zero sound card may be worth giving the new Audio Injector Zero a little more investigation and backing its Kickstarter crowdfunding campaign. The ...

Using a speaker as a microphone is a trick old enough to have become common knowledge, but how often do you see the hack reversed? As part of a larger project to measure the acoustic power of a ...

Raspberry Pi enthusiasts may be interested to know that hardware manufacturers ReSpeaker have created a new quad microphone expansion board specifically designed for the range of Pi mini PC systems.