CAHRISMA 
Conservation of the Acoustical Heritage by the Revival
and Identification of the Sinan's Mosques' Acoustics
INCO-MED 3-years project started in January 2000
Objectives
Objective of CAHRISMA is to innovate and implement the concept of ?Hybrid
Architectural Heritage?, in the field of conservation and restoration.
Hybrid Architectural Heritage is a new way of identification that covers
acoustical peculiarities besides visual ones.
Summary of the project
General goals of CAHRISMA are: to identify and revival acoustical heritage
of Sinan?s mosques and churches and to create an integrated 3D audio-visual
system to conserve architectural heritage. At this project, not only the
architectural work will be reconstructed virtually, but the life inside
will also be recreated. In order to simulate the realistic effects, virtual
humans will be simulated and reproduced.
EPFL-LIG's contribution
LIG will be involved in the visualisation of the selected worship spaces.
The visualisation will include modelling of the ancient environment and
moreover simulation of the people and their motion inside the selected
spaces. The simulation of human crowds for populating virtual worlds will
provide a more realistic sense. Therefore, virtual environments that contain
sounds, visions as well as virtual humans will be created. To obtain authentic
and realistic environments virtual humans will have a kind of environment
knowledge and also they will be able to move and interact within this environment.
Next, virtual acoustical environments will be combined with virtual
visual environments to enable users to have more realistic perceptions.
As in both acoustical and visual simulation fields, reliable, tested and
sufficient knowledge and experience exist, the superposition of sounds
and visions in the real time systems which is the main challenge of this
project will be accomplished. A novel real time Hybrid (acoustical and
visual) Architectural Heritage System will be designed and created with
other partners.
Finally, these environments will be used for different purposes, such
as acoustical comparison and evaluation of mosques and churches, revival
of lost acoustical environments, subjective evaluations of lost acoustical
peculiarities, identification of current environments in a detailed way
and audio-visual conservation of architectural heritage. The data obtained
from acoustical evaluations will be used for the improvement of the acoustical
criteria for halls with domes, and could also be used in the modern design
tools.
Partners