If you’ve been in a movie theater recently, you may have noticed that the sound is a whole lot more immersive. That’s thanks to spatial audio, a type of surround sound. The most well-known version is ...

[Joekutz] wanted to re-build an audio-rate function generator project that he found over on Instructables. By itself, the project is very simple: it’s an 8-bit resistor-ladder DAC, a nice enclosure, ...