Datadealer synthesizer Datadealer is a clone of Olivier Gillet's Shruthi-1 (https://github.com/pichenettes/shruthi-1). All boards in this repository are released under a cc-by-sa 3.0 license.
The firmware is released under a GPL3.0 license. It includes a reimplementation of the formant synthesis algorithm used in Peter Knight's Cantarino speech synthesizer.