Sound Space is Threefold

Sound can be described as superposition of sines, noise, and transients, and these components can be embodied as acts of phonation, turbulence, and pulses occurring in the human voice apparatus. The Quantum Vocal Theory of Sound introduced a strict analogy between the threefold description of sound and the three-axes of the Bloch sphere, so that sound time evolution can be described similarly to spin evolution in a magnetic field. A threefold partition of the sound world is at the basis of descriptions of sound objects and of phenomenology of sound, as well as of their embodiment through the concept of musical gesture. The interplay of sounding objects can also be conveniently represented in three-axial space, where trajectories objectify mutual relations.