Abstract
Segmenting note objects in a real time context is useful for live performances, audio broadcasting, or object-based coding. This temporal segmentation relies upon the correct detection of onsets and offsets of musical notes, an area of much research over recent years. However the low-latency requirements of real-time systems impose new, tight constraints on this process. In this paper, we present a system for the segmentation of note objects with very short delays, using recent developments in onset detection, specially modi ed to work in a real-time context. A portable and open C implementation is presented.