The worlds first OpenSource Realtime Editing and Effects System. Jahshaka takes advantage of the power of OpenGL and OpenML to give its users exceptional levels of performance. We currently support Linux, OsX, Irix and Windows, and Solaris is on the way!
a cross platform audio library and toolset to let you easily implement the latest audio technologies into your title. FMOD now supports 13 platforms! Win32, Win64, WinCE, Linux, Linux64, Macintosh (os8/9/10/x86) PS2, PSP, PS3, Xbox, Xbox 360
a multi-lingual (German, English, Tibetan) and multi-platform (Windows, Linux, MacOs X and Solaris) Open Source Emotional Text-to-Speech Synthesis System
A bit more feature powered than Zamzar. With more formats and a bit more complicated interface. However, I can guarantee you that it’s worth the usage. No email needed. 100Mb limit