Description: eSpeak is an open source software speech synthesizer for Linux, Windows, and other platforms. It supports many languages and accents and is customizable. eSpeak converts text to speech with good quality and versatility.
Type: software
Pricing: Free
Description: GeoGebra is free and open-source dynamic mathematics software for all levels of education. It combines geometry, algebra, spreadsheets, graphing, statistics and calculus in one easy-to-use package. It can be used to teach math from elementary through university level.
Type: software
Pricing: Open Source