A simple FSK coder that can translate Tandy TRS-80 Color Computer cassette images in .cas format, to an unsigned 8-bit PCM waveform at 11,025Hz sample rate. It is being used in the FujiNet project to provide a way to convert CAS files to a format that the ESP32 DAC can output directly.
cat source.cas | cocoencode >dest.rawGPL v. 3, see LICENSE.md for details
Thomas Cherryhomes <thom dot cherryhomes at gmail dot com>