The structure of all sound-producing instruments displays the same broad range of components : vibrating structure, stimulating structure, local and global dissemination environments.
Under the supervision of Claude Cadoz, ACROE develops in its Sound Studios, physically-based models of each components and their coupling, based on the CORDIS-ANIMA formalism:
Vibrating structures, shape and matters
Self-maintained vibrating structures (Phd student François Poyer)
Slabs and very large membranes (trainee Clément Werner)
Acoustic ruggedness percieved in slabs and membrane structures (trainee and composer Francisco Huguet)
Modal configuration of large vibrating structures (Phd student Jérôme Villeneuve, intern Adrien Vidal)
Introduction of tightness non-linearity and geometric non-linearity in vibrating structures (Phd student Jérôme Villeneuve and James Leonard, Intern Farzan Kalantari)
Traditional instruments modelling (in collaboration with Instrument Museum of Brussels)
Systematic analysis and formalisation of the creation of macro-temporal shapes concept from coupled tuned oscillators (cf. Claude Cadoz)
Stimulation methods and stimulators
Vibro-acoustic objects modelling with continous stimulations organ pipes type (trainee Muriel Groz)
Physical models with audio-digital effects
Partnership with Cardiff School of Art and Design
Music composition with physical models (Phd student and compositor Giuseppe Gavazza)
Modelling for macro-structural creation (Phd student and compositor Giuseppe Gavazza)
Spatial instrumental projection (compositor L. Brümmer, with the ZKM, Karlsruhe, Germany)
Didactic environment for GENESIS, handbooks, pedagogic maps and records (Olivier Tache, Giuseppe Gavazza, Jérôme Villeneuve)
Older researchs :
Strings, membranes, structures improvement (cf. Djoharian, Incerti)
A Study of Non-Linearities (Nicolas Castagné)
Material stress and memory, fractures (cf. Fourcade, Cadoz)
Bow friction, reed instruments, percussion (Jean-Loup Florens, Fourcade)
Formal study on topological and/or geometric networks, which serves as reference for the design of models.
This highlights fundamental constraints related to spatial discretization (network models) and temporal discretization (stability zones, parametric limits, computational complexity).
A quantitative study of the relationship between physical parameters (mass, rigidity, viscosity), simulation parameters (algorithmic measures), and acoustic parameters (frequency, mode, damping ratio).
Defining criteria for the perception of shape and composition of a sound-producing object (cf. Djoharian)
Study concerning the incidence of the spatial definition of vibrating structures (cf. Phd N. Castagné, 2002)