Alto.glove is a sensor-embedded, WiFi-enabled data glove designed to extend the performance capabilities of violinists and violists.
Force-sensitive resistors are located on the inside of the index finger for actuation by the pad of the thumb, and on the anterior of thumb for actuation by the pad of the index finger, allowing continuous control of two parameters with only partial release of the bow grip.
Flex sensors are distributed on the index and fourth fingers, reflecting the horizontal pivoting of the bow in the hand as well as situations in which the bow is gripped (pizzicato) or the fourth finger lifted from the stick to achieve a “transparent sound” (Ivan Galamian). A bi-directional flex sensor on the wrist serves as a proxy for the lateral position of the bow on the strings.
A motion sensor is built into a circuit board resting proximal to the wrist, uniquely secured with an elastic band and bracket. Oriented this way, gyroscopic z-axis readings accurately represent bowing velocity, while x-axis movements represent string crossings.
Three contact switches are available, as well as vibro-tactile feedback. A “poetic” computation scheme is implemented in Max MSP utilizing continuous gesture tracking. Alto.glove is cost-effective and easy to build.
Alto.glove was presented at the 2018 Guthman Competition at Georgia Tech.