WaveSurfer is a sound visualization/manipulation tool for novice and advanced users, with a simple and intuitive user interface. It can be adapted to different tasks, such as speech research and education, speech/sound analysis, and sound annotation/transcription. You can also make more advanced/specialized applications by extending it with custom plugins or embed WaveSurfer components in other applications. Its flexible interface handles many different file formats, and it runs on many flavors of Windows and Unix. It also supports encoding and Unicode with unlimited file size, and more.
Transcend can best be described as retro-style, abstract, 2D shooter. The graphics are geometrical, and the pace is sometimes frenzied. Two features set Transcend apart from other games. First, its dynamic graphical engine, which can smoothly morph from one complex shape to another in realtime, produces striking displays. Combining these dynamic shapes with subtle randomizations ensures that each new play through a level is visually different from the last. The second novel feature is the musical power-up system. As you play through a level, you are simultaneously assembling an abstract visual collage and arranging a unique piece of music.
amber aims to be an easy-to-use granular synthesis tool for Linux to assist composers and electronic musicians in creating interesting and complex sounds. More information on the theory and application of granular synthesis techniques can be found at http://shoko.calarts.edu/~eric/gs.html.
AZR3-JACK is a port of the free VST plugin AZR-3. It is a tonewheel organ with drawbars, distortion and rotating speakers. The original was written by Rumpelrausch Täips. The organ has three sections, two polyphonic with 9 drawbars each and one monophonic bass section with 5 drawbars. The two polyphonic sections respond to events on MIDI channel 1 and 2, and an optional keyboard split function makes the bass section listen to the lower keys on channel 1. The three sections have separate sustain and percussion switches as well as separate volume controls, and the two polyphonic sections have separate vibrato settings. All three sections are mixed and sent through the distortion effect and the rotating speakers simulator, where the modulation wheel can be used to switch between fast and slow rotation, and the fast and slow rotation speeds themselves can be changed separately for the lower and upper frequencies.
Bristol Audio Synthesiser is an emulator for diverse keyboard instruments. Currently about 20 are implemented: various Moog, Sequencial Circuits, Oberheim, Yamaha, Roland, Hammond, Korg, ARP, and Vox algorithms. The application consists of an audio engine and an associated graphical user interface called Brighton which acts as a dedicated master keyboard for each emulation.
STK is a set of audio signal processing C++ classes and instruments for music synthesis. You can use these classes to create programs which make cool sounds using a variety of synthesis techniques. This is not a terribly novel concept, except that STK is very portable and completely user-extensible.
nekobee is a DSSI soft synth plugin that emulates the sound of the TB-303 Bassline. It is not an exact copy; rather than make it "just like the real thing", the design concentrates on modelling the circuitry and was adjusted by comparing the sounds achievable with it to those heard on classic acid house tracks. It includes a switchable square/saw wave VCO, 24dB/octave VCF, an adjustable decay time for the VCF, a fixed decay time for the VCA, and an interesting bit of circuitry around the "Accent" control.