Ovoidal Acoustic Shielding Interactive System - A urban sonic installation. - Sonic environment of big cities has high levels of acoustic pollution. Inside this environment human being merges all the sounds that interact within a same contxt without conscient discrimination and progressively loosing ability of sonic awareness and abstraction. This gives as a result the percepetion of "city noise". OASIS is an interactive sonic installation capable of bringing the citizen the distance and the time to assimilate the perceptible sound environment as a soundscape, as a ludic plattform. Eventually this strengthens the hearing capacity of the urban being that has the will to explore OASIS. The structure has diffrent approaching scales at public urban space. At human scale it is noticed as a shield with clear interior and exterior spaces. As it is approached, OASIS becomes a ludic structure allowing itself to be explored, bringing the citizen the opportunity to find in it different sonic spots, each one with particular acoustic qualities. At an intimate scale, OASIS allows to stablish cognitive and semantic relations between the objects -as it may be the sound objects percieved at a particular point- generating an interactive relationship that eventually can be percieved as a musical fact. In order to fulfill this requirements, OASIS consists basically of a semi-elliptical acoustic shield. It is built-up with isolating and reflective material. The isolation attenuates the exterior noise and the reflectation properties of the inside allows the structure to work as an amplificator. As it is based on an ellipse, the structure has in it a "sweet spot" at one of the ellipse focuses. At the other focus there is a loudspeaker that is constantly sending sound to the shield, where it is reflected directly to the sweet spot. There, the user is isolated from city noise and hears the sound virtually coming "from the shield", being immerse into it and percieving it as an alternate soundscape. Also, the shield has built-in "acoustic windows" designed to allow the user to discover in them particular sounds coming from the outer side of the shield. This particular version of OASIS consists of two semi-elliptical acoustic shields (each one with built-in acoustic windows and a loudspeaker) placed in simmetrical fashion both facing the same side, with a translucent acoustic shielding in the middle and a gateway at the center. At the central area between the shields there is a pair of parabolic acoustic reflectors. All of these features enhance the experience the citizen can get at the OASIS. Furthermore, OASIS is self-suffiicient. It has solar panels on the roof of the structure that absolutely cover the electrical supply requirements of the loudspeaker amplification system and the structure lighting. In practice, OASIS is a concept that can take different forms, depending basically on where it is placed and further custom requirements. Basically it it consists of the elliptical structure with sonic ludic features, capable of attracting the citizen into it and bringing the necessary space and time for sonic abstraction. The intended result is that the citizen can discover new ways of hearing the city noise, by exploring it, using the physical structure as an interface, learning to listen better.
CREDITS:
Gonzalo Aguila (architect), Nestor Gatica (acoustic engineer), Juan Mendoza (musician)
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The Soar Cognitive Architecture: Towards Human-Level Intelligenceby natederbinsky365 views
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