Manual Intervention of Theremin Antenna Capacitance
By / May 30, 2025
The theremin, one of the earliest electronic musical instruments, remains a fascinating device that responds to the proximity of the player's hands without physical contact. At the heart of its operation lies the antenna capacitance system, which detects the subtle changes in electromagnetic fields caused by hand movements. While modern theremins are finely calibrated for precision, some players and experimenters engage in what can be described as "manual intervention" of the antenna capacitance—altering its behavior through unconventional, hands-on approaches. This practice, though not widely documented, reveals intriguing possibilities for sound manipulation and artistic expression.