Software Tonoscope [portable]

Teaching overtone singing (harmonic singing) is notoriously difficult. A student cannot see their second formant. With a software tonoscope, they watch as their voice moves from a chaotic splatter (noise) into a perfect hexagon (pure fifth interval). It provides instant biofeedback.

Modern software tonoscopes use your computer’s graphics card (GPU) to simulate thousands of particles (like sand) or to generate real-time fractal patterns. The audio amplitude drives the velocity of these particles. High volume = more chaotic particle motion, eventually settling into standing wave patterns as the sound sustains. software tonoscope

: Some researchers use custom software (like sdfsys ) to map pitch and frequency to polar coordinates for advanced visual representation. software tonoscope