GamaTTS is an experimental articulatory speech synthesizer, derived from Gnuspeech.

Some of the modifications introduced by GamaTTS are:

Status: alpha.

License: GNU GPLv3-or-later.

Synthesis examples:

- The Chaos by Gerard Nolst Trenité (short version) synthesized by GamaTTS 0.6 (vtm5).

English - Male MP3
English - Female MP3
English - Large child MP3
English - Small child MP3
English - Baby MP3

Performance of GamaTTS 0.8 using the english male voice:

CPU: Core i5-3470 (the software uses only one thread).

Vocal tract model Speech duration Synthesis time Real-time factor
vtm0 420 s 5.3 s 79x
vtm5 422 s 11.4 s 37x



A concise documentation in HTML is available.


The software is developed in multi-platform C++ and has been tested on Linux+GNU x86_64.