SD/OS - Self Dis/Organizing Sound (presence)
SD/OS (Self-Dis/Organizing Sound) (presence) is a project for an interactive sound installation implementing real-time and autonomous complex dynamical feedback systems. The digital audio engine is based on feedback networks of interacting, non-stochastic and non-automated DSP processes, where all temporal parameters are within the 0-30 milliseconds range (Haas zone) to operate on the sound micro-structure. As a result, we have a cybernetic entity exhibiting nonlinear dynamics, self-dis/organization and chaotic behaviors; a holistic and organic sonic whole coming from the synergy between the interconnected DSP units which is different from the sum of its parts, where global properties, behaviors and sound/form are phenomena phenomena emerging from the low-level. The system is capable of running with no inputs, only feeding itself with numerical noise, and external inputs in the system act as perturbations to its spontaneous behaviors. It will operate in the concert hall environment where speakers and microphones will be placed facing each others. The output of the system will thus be diffused in the environment through the speakers, captured by the microphones and fed into the system to perturb it, which will in turn output the result, recursively. This iterated process establishes a coupling between system and environment, in a situation of reciprocal mediation where they constantly influence each other. The audience, besides possible noises it can produce, will affect the system changing the resonances of the space with its presence and standing between microphones and speakers, creating acoustic shadows. The audience, thus, is not a passive listener, but an element in the global system with an important role for the final result.
LIES - Live Interaction with Emergent Sound
LIES is a project of improvised Human-Computer Interaction (HCI) performance. The sound system in this project was implemented by means of audio feedback networks of non-stochastic DSP processes. In such a system, every effect (output) from each element in the network is, directly or indirectly, also cause (input) for all other elements. This distributed circular causality makes the processes iterated and the system nonlinear. Even if no automating algorithm is used, the system is autonomous and “self-sustaining”, and noise, numerical garbage or Larsen tones, is the only energy source the networks are fed with. Without external or centralized control, it is capable of generating stable or evolving multi-layered patterns, and it exhibits properties typically found in self-dis/organized systems. Although no randomness is used, the nonlinear dynamics produces chaotic and complex unpredictable behaviors, and the system operates at the edge between equilibrium and instability, between homeostasis and homeorhesis. The sound affects itself, and is, along with the evolving forms, emergent. The system is different from the sum of its parts, an entity with its own aesthetics, an organic sonic whole whose result can be considered as non-conventional sound/form synthesis. The performer affects the machine and is in turn affected, and improvisation is the mechanism that couples these two entities. The performance is the result of the constant co-operation between the human and the machine.
|. (bardot) - with Andrea Valle
|. (Bar Dot) is a project by Dario Sanfilippo (nonlinear dynamical feedback system) and Andrea Valle (computer-piloted electro-mechanical orchestra) focusing on the exploration of feedback systems in improvisation. The general idea is that our two systems are interconnected, each one affecting the other one. Andrea’s computer will generate a control signal for the orchestra based on the analysis of Dario’s sound, and the sound of the orchestra will in turn affect Dario’s system behavior.
Enterico - with Tim Hodgkinson and Gandolfo Pagano
Buccino’s song-writing meets Dario’s and Gandolfo’s electro-acoustic improvisation.
Institute for the Very Very Nervous - with Gandolfo Pagano, Antonino Secchia and Andrea Valle
Electro-acoustic improvisation by Gandolfo Pagano (prepared guitar, electronics), Antonino Secchia (percussion set, electronics), Dario Sanfilippo (n.d.f.s.), Andrea Valle (computer-piloted electro-mechanical orchestra).
