XChestival is an improved version of xchat_speak designed for Italian. It lets xchat and irssi "speak" through festival. It comes with a script for xchat and irssi and the Italian phonemes. The scripts have some useful features like channels and query filtering and string substitution.
Heilan is a standalone OpenGL X3D browser designed for audio work. It features a low latency Ambisonic audio engine, allowing for full 3D sound with virtually any configuration of speakers. It also has full Open Sound Control support, allowing scenes to be manipulated in realtime.
The Freeverb3 library includes high quality freeverb, nreverb, impulse response reverb, FIR filter constructor, band splitter, and hardknee/softknee compressor. Its oversampling feature provides high quality audio processing. The compressor provides mastering quality audio processing. This library includes XMMS plugins, audacious plugins, BMP beep media player plugins, and sample programs, which enable you to test the audio effects easily. Freeverb3_vst is a VST plugin version of the freeverb3 library.