NTCCRT: A concurrent constraint framework for soft real-time music interaction
Por:
Toro, M., Rueda, C., Agón, C., Assayag, G.
Publicada:
1 ene 2015
Resumen:
Writing music interaction systems is not easy because their concurrent processes usually access shared resources in a non-deterministic order, often leading to unpredictable behavior. Using Pure Data (Pure Data) and Max/MSP, it is possible to program concurrency; however, it is difficult to synchronize processes based on multiple criteria. Process calculi such as the Non-deterministic Timed Concurrent Constraint (ntcc) calculus, overcome that problem by representing, declaratively, the synchronization of multiple criteria as constraints. In this article, we propose the framework Ntccrt, as a new alternative to manage concurrency in Pure Data and Max/MSP. Ntccrt is a real-time capable interpreter for ntcc. Using Ntccrt binary plugins in Pure Data, we executed models for machine improvisation and signal processing. We also analyzed two case studies: one of a machine improvisation system and one of a signal processing system. We found out that performance of both case studies is compatible with soft real-time music interaction; it means, a musician can interact with Ntccrt without noticeable delays during the interaction. © 2005 - 2015 JATIT & LLS. All rights reserved.
Filiaciones:
Toro, M.:
Department of Informatics and Systems, UNIVERSIDAD EAFIT, Colombia
Rueda, C.:
Department of Computer Science, PONTIFICIA UNIVERSIDAD JAVERIANA CALI, Colombia
Agón, C.:
Music Modeling Team, IRCAM, UMR 9912 CNRS, France
Assayag, G.:
Music Modeling Team, IRCAM, UMR 9912 CNRS, France
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