FreeTTs és un motor de síntesis de veu lliure de codi obert escrit en & Java;, el qual vol dir que haureu de tenir instal· lat al vostre sistema el programari de la màquina virtual de & Java; per a poder- lo usar. No podreu controlar el timbre, el volum o la velocitat d' aquest motor des de & ktts;.
FreeTTS is a free open source speech engine written in & Java;, which means that you must have the & Java; Virtual Machine software installed on your system to use it. It currently has limited voice and language support. You cannot control the pitch, volume, or speed of this engine from & ktts;.