Audio Recording and FM Radio on Teensy 4.1

A little demo of recording audio from various external sources. Audio is recorded directly from the line-out port of the device with no modification aside from adjusting the volume to fit the video. This is an update in my DIY OP-1 inspired portable groovebox project, and clearly there are still many improvements to be made. To follow my progress as I add more functionality, to download code/hardware files, or for more information on this device, check out the following links. Code: