Sheriff Jack W. Brandes. To serve and protect the citizens of Austin County and the great State of Texas and to preserve and protect the. Constitution of the United States of America, especially the Second Amendment, the Right to Bear Arms..
Integrating Sound Level Meter. In atmospheric sounding and noise pollution, ambient noise level (sometimes called background noise level, reference sound level, or room noise level) is the background sound pressure level at a given location, normally specified as a reference level to study a new intrusive sound source.
You are surrounded by sounds of varying decibels every day, most are well below the danger level, such as office conversation or white noise from a humming air conditioner (both are about 60 dB). But, noises that are 85 dB or higher put your hearing at risk.