Sinevibes has announced that Reactive, an Audio Unit that turns any audio into melodic materia, is now available:

Reactive is an AudioUnit effect plugin that turns any sound into melodic material. It detects the input signal’s dynamic envelope, and converts it into pitch information via an eight-note keyboard matrix. The pitch and envelope are then simultaneously used to drive three distinct synthesizer engines featuring waveshape modeling, phase modulation, and subtractive with ring modulation. All this is easily accessible via a simple color-coded interface, and lets Reactive instantly create amazing new sounds – from synth and bass lines, pulsating drones, and stepped pitch glides, to glitches, blips, wobbles, and noises – which are all lively reacting to the input.

Some applications for Reactive:

• Use any sound’s dynamics to generate melodies, strums and arpeggios.
• Transform rhythm and percussion parts into synth and bass lines.
• Create unique instruments and effects in realtime out of vocal beat-boxing or even simple microphone tapping.

Here’s a preview of Reactive in action:

http://www.youtube.com/watch?v=98pX3-PxdwM

Reactive for Mac (AU) is available now for US $29.