What are the key phrases related to acoustics and noise in industrial environments?
Baffle -A free hanging acoustical sound absorbing unit. Normally suspended vertically in a variety of patterns to introduce absorption into a space to reduce reverberation and noise levels. Barrier -A material that when placed around a source of noise inhibits the transmission of that noise beyond the barrier. -Anything physical or an environment that interferes with communication or listening. For example, a poor acoustical environment can be a barrier to good listening and especially so for persons with a hearing impairment. Direct Field -Area where the sound measured can be attributed to the source alone without effects of reflections off of walls or obstructions. Noise -Unwanted sound. Sound Level Meter -Device that converts sound pressure variations in air into corresponding electronic signals. The signals are filtered to exclude signals outside frequencies desired. Sound Transmission Class (STC) -A single number rating for a transmission loss spectrum of a partition or barrier ma
