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The first basic idea of the glitch-free playback model (a better, less marketingy name is probably timer-based audio scheduling which is the term I internally use in the PA codebase) is to no longer depend on sound card interrupts to schedule audio but use system timers instead. System timers are far more flexible then the fragment-based sound card timers. They can be reconfigured at any time, and have a granularity that is independant from any buffer metrics of the sound card. The second basic idea is to use playback buffers that are as large as possible, up to a limit of 2s or 5s. The third basic idea is to allow rewriting of the hardware buffer at any time. This allows instant reaction on user-input (i.e. pause/seek requests in your music player, or instant event sounds) although the huge latency imposed by the hardware playback buffer would suggest otherwise.

The VMX VJ is the utlimate USB MIDI controller for VJs - 99 fully assignable controllers- Plug & Play Windows XP & MAC OS X, Linux support with USB drivers- 2 jogs and 2 cross fader for live video scratching- 8 tracks with soft touch fader- 20 knobs- 28 switches (loops, play, pause, replay etc ...)- 39 radio buttons (special FX...)- dim. 29x41 cm - same as a 17" laptop - white steel

The Joystick Wrapper library (libjsw) is designed to provide a uniform API and user configuration for joysticks and other game controllers on all platforms

Khagan is a live user interface builder for controling parameters via OSC.

PHAT is a collection of GTK+ widgets geared toward pro-audio apps.

static MidiInput * createNewDevice (const String &deviceName, MidiInputCallback *callback)  LINUX ONLY - This will try to create a new midi input device.