Sound morphing

Each sound grain produced by Chaosynth is composed of several spectral components. Each component is a waveform produced by a digital oscillator which needs two parameters to function frequency (Hz) and amplitude (dB). In Chaosynth, the oscillators can produce various types of waveforms such as sinusoid, square, sawtooth, and band-limited noise. The CA control the frequency and duration values of each grain, but the amplitude values are set up by the user beforehand via Chaosynth s Oscillators panel. The system can, however, interpolate between two different amplitude settings in order to render sound morphing effects. 

Diphone, developed at Ircam in Paris, is a program for making transitions between sounds an effect commonly referred to as sound morphing. The program runs on Macintosh computers and is part of a set of programs supplied to the subscribers of the Ircam Forum. Originally, the term diphone refers to a transition between two phonemes, but for musical purposes this notion has been expanded to mean the transition between any two sounds, not necessarily of vocal origin. 

The Pratt WhittneyJ-58 engines of the Lockheed SR-71 Blackbird aircraft started as afterburning turbojets but morphed into ramjets to allow the aircraft to reach more than three times the speed of sound. 

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