Jean Louis Garner :: built the Paris Opera House; is an expert in acoustics

Architectural acoustics :: discovered 25 yrs after the Paris Opera House; discovered by Wallace Sabine

Wallace Clement Sabine :: father of architectural acoustics

Boston Symphony Hall :: 1st auditorium to be designed under the scientifically derived acoustical principles

Acoustics :: science of sound

Sound :: an auditory sensation in the ear/ disturbance in a medium

Resonance :: reinforcement or prolongation of sound by reflection from a surface/by the synchronous vibration of a neighboring subject

0 - 70 db :: safe decibel range

130 – 180 db :: unsafe decibel range

Tinnitus :: excessive noise exposure can cause this; (characterized by a constant ringing, hissing or other sound in the ears or head when no external sound is present)

Infrasonic sound :: sound waves w/ frequencies below the lower limit of human hearing (below 0 db)

Ultrasound :: soundwaves w/ frequencies above the upper limit of human hearing (above 140 db)

Hypersound :: soundwaves w/ frequencies above 1 Gigahertz

Library, museum, health care facilities :: Spaces wherein “QUIET” is a necessity

Classrooms, boardrooms, lecture halls, courtrooms :: Spaces wherein “UNDERSTANDING OF SPEECH” are vital

Restaurants, lobbies, food courts, malls :: Spaces that requires “BUZZ” isn’t overwhelming

Airports, Educational Faci, Gov’t Faci., Public spaces :: Spaces that ensure “PUBLIC ANNOUNCEMENTS” audibility

Open office; call centers; meeting areas :: Spaces wherein “SPEECH PRIVACY” is a key

Recording studios, concert halls, practice rooms, performance spaces :: Spaces wherein “MUSIC ENHANCEMENT” is crucial; uses a combination of soft and diffusive materials

Office (doctor, counselling), human resources, police faci. :: Spaces wherein “CONFIDENTIALITY” is essential

Worship centers, theatres, clubhouses, multipurpose room :: Spaces wherein “SPEECH & MUSIC” must be considered

Design Development stage :: stage where architects consider acoustics