November moments by James Staub

improvisation for bass and software.

the program analyzes to the upright bass signal for tonality and timbral qualities, and triggers concatenative and granular synths from a set of samples. sample segments are chosen based on k nearest neighbor similarity to the input signal.

there is also a gaussian mixture model trained on specific timbral examples of the upright bass (bowing, harmonics, plucking, tapping) and the program dynamically changes various synthesis parameters based on which timbre is played on the bass.