Glossary

1. The science of sound, including the generation, transmission, and effects of sound waves. 2. The totality of those physical […]

Abbr. for air changes per hour

1. An act of concurrence by adjoining property owners which resolves a boundary dispute or establishes a common boundary, where

The amount of water required to cover an area of 1 acre to a depth of 1 foot; equivalent to

A statue or sculptured figure in which only the head, hands, and feet are of stone, the rest being usually

A porous material in board form, designed or used as an acoustical material or as an element in a sound-insulation construction.

An acoustical ceiling board designed to be laid into an exposed grid suspension system.

Any material especially designed to absorb sound.

A model of an auditorium or room used to study certain acoustical properties of the full-sized enclosure, such as the