This series of videos walks through building a circuit to decode one type of audio data format that was used in the 80s and send data to a computer and discusse

This series of videos walks through building a circuit to decode one type of audio data format that was used in the 80s and send data to a computer and discusses how the audio signal works and simple circuit to turn it into digital data https://www.gregorystrike.com/2023/01/07/kansas-city-standard-decoder/ https://www.gregorystrike.com/2023/01/07/kansas-city-standar... (I just got another one of these kits because I had previously built, successfully tested, then threw it out after I had some issues using it as-is, but I want to build it again with the additional electronics experience I have now.)