Complex Dynamical (Eco-)Systems Based on Nonlinear Feedback Networks

November 19th, 2013 midday until November 20th, 2013
STEIM Concert Space, Utrechtsedwarsstraat 134 Amsterdam Show in Google map

2-day workshop discussing complex dynamical feedback systems for human-machine interaction performance, autonomous sound installations and non-conventional sound synthesis.


Dario Performing


In this workshop the complex dynamical feedback systems for human-machine interaction performance, autonomous sound installations and non-conventional sound synthesis will be discussed and put to practice. The workshop will be divided into two main parts:
First, a theoretical part in which Dario Sanfilippo will talk about the properties of feedback systems from a systemic and cybernetic perspective within the framework of emergent and complex phenomena, along with theoretical concepts related to such an approach for creative practices.
In the second part, he will present some of his works and techniques and such systems will be implemented through the Pure Data programming environment trying to give the possibility to each participant to personalise their own systems. During the implementation process, technical and theoretical aspects of the techniques used will also be discussed.
The following theoretical topics will be discussed:
-Positive and negative feedback
-Nonlinearity, circular causality and iteration
-Interaction, interdependency and synergy
-Self-dis/organisation, homeorhesis and homeostasis
-Chaos, emergence and complexity
-Autonomous and self-sustaining non-automated systems
-Non-random unpredictability
-Organicity in sound
-The subversion of technology
-The aesthetics of the emergent machine
-Improvisation as a feedback mechanism
The main technical topics include:
-Mathematical formalisation of feedback systems
-Recursive comb filters
-Feedback delay networks
-Digital reverberation and physical modelling
-Recursive single-side modulation
-Recursive FM and RM
-Recursive asynchronous granular synthesis
-Recursive nonlinear distortion
-Adaptive limiting
-FFT-based processing within feedback loops
-Feature-extraction algorithms for control-domain feedback
DATE: 19-20 November, 2013
TIME: 11:00 – 17:00 (each day)
LOCATION: STEIM Concert Space, Utrechtsedwarsstraat 134 Amsterdam
COST: €80



Dario Sanfilippo (b. 1983) is a freelance composer, performer and sound artist whose research is focused on the study and exploration of complex dynamical feedback systems for non-conventional sound synthesis, improvised human-machine interaction performances, and autonomous sound installations. His works and research have been presented in international festivals and contemporary music events such as AudioArt Festival, Curva Minore Festival, Acoustic Fields Festival, AudioVisiva Festival, Quiet Cue concert series, Live!iXem Festival, Logos Foundation series, as well as Universities like Naples’ L’Orientale, Music and Performing Arts University of Vienna, University of Graz (IEM), Bangor University, Queen Mary University of London. His works and research have been selected for international conferences like International Computer Music Conference 2012, Sound and Music Computing 2011, Digital Music Research Network 2011, Colloquium of Musical Informatics 2010 and 2012, INTER/actions Symposium 2012, and they have been published by record labels such as Creative Sources, Die Schachtel and Idroscalo, and journals like Computer Music Journal. He graduated in Music and New Technologies at the Conservatory of Trapani, and is currently attending the Master’s Degree in Electronic Music at the Conservatory of Naples, in the class of Agostino Di Scipio.