Artistic perspective of the Hcor Auditorium
We finished the HCor Auditorium project, meeting the request of the clients and the architecture firm that did not want absorbent panels with fabric on the outside facing the audience, we designed perforated wooden panels and tuned in the frequencies required by the project, as absorbent panels.
When the perforated panels are used as part of a sound absorption system, the system is assumed to be a matrix of Helmholtz resonators, the air cavities in each perforation correspond to the “neck” of the resonator and the air chamber coupled behind the panel, including the glass wool, the “body” of the resonator. When the sound goes through a perforation, it causes the air in the “neck” to vibrate.
When vibrations meet the resistance of the panel around the perforation or the resistance of the glass wool applied behind the perforated panel, this resistance causes the sound energy to convert into heat, resulting in sound absorption.
For a Helmholtz resonator, the air in the “neck” and the mass of air in the “body” work as a spring, generating a resonance (resonant vibration) at a specific frequency. Since the air cavity vibrates more vigorously and close to the resonant frequency, the result is that the resonator absorbs the sound of that frequency more effectively.
The wooden panels, perforated and micro-perforated, turn out to be a good option to us, acoustic designers, and to interior design offices.
CIVIL CONSTRUCTION GINER
In a recent survey, six of the ten largest construction companies in Brazil and four of the most expensive apartments in São Paulo, had or still have Giner participation.
A consultancy, a project, or a measurement of acoustic descriptors according to NBR (Brazilian Technical Standard) 15.575, was carried out by us for acoustic comfort.
GINER OCA SOUND HOUSE
Project currently under study, a “living room” and two control rooms, one with the 5.1 system.