Hello! I's wondering if anyone from this community knows of any audio visualizers that do not require a phone or computer? Just has a line in and interacts with whatever source is being fed into it.

A spectrum analyzer is a great way to create exciting visuals that pulse in time with music. [pyrograf] wanted a big one as a display piece, so set about whipping up something of their very own. An ...

Flashing LEDs are all well and good, but they’re even better if they can sync up with ambient sounds or music. [mircemk] has built the LUMAZOID visualizer to do just that, relying on some staple maker ...