Vocal Joystick

A voice-based human-computer interface that uses continuous non-verbal vocal sounds (rather than spoken words) to provide proportional, real-time control of devices, cursors, or robotic systems. The Vocal Joystick engine extracts pitch, loudness, and vowel quality from the user's voice: vowel sounds map to directional control in a 2D space, loudness controls speed or magnitude, and pitch can control additional dimensions. Unlike speech recognition, which processes discrete commands, a vocal joystick provides continuous, analogue-like control similar to a physical joystick — enabling smooth cursor movement, robotic arm positioning, or other tasks requiring proportional input. This approach is particularly valuable for people with motor impairments who cannot use physical joysticks or mice but retain vocal control, and it requires only a standard microphone.