Sound, silence: acoustics and architecture. An interview with Eduardo Saad Eljure

Abstract

In 2008, architect Eduardo Saad Eljure was granted the extraordinary chair Federico Mariscal at the UNAM´s Architecture Faculty, under the topic Sound, silence: acoustics and architecture (A series of lectures assigned every year to Mexican architects relevant for their careers and academic work). For more than five decades, Saad has merged in-field experience, research and teaching in acoustic, air conditioning and architecture installations. He has published several books like Architectonic Acoustic, Vertical Transportation in Buildings and Artificial Weather. His work tries to raise awareness about acoustic values in architectural projects like halls and theatres. “The essential element for a good listening experience is silence. The thing is to try to prevent exterior sound from coming into the theatre and keep the noise generated inside, like air conditioning, low. The more silent the space, the faster sound travels through it.” “Acoustics are a physical phenomenon that depends on reverberation time, that is, the time it takes for any sound to go down to 60 decibels; for example, when you clap, you get the last remaining part of the sound because the walls reflect it; in open spaces this doesn’t happen. People like to sing while showering because of the sounds’ brightness; however this is not the case with carpet covered walls, where they will rather be quiet. Every activity requires a different reverberation time, and therefore, I’m sure that any space used by human beings needs to be conceived with some acoustical consideration.” “The idea of the architect as a one-man team has changed. Nowadays, the role of the architect is more of an orchestra conductor that works along with carpenters, designers and construction workers to create a harmonious symphony.”