Researchers have determined that noise levels in the typical orchestra pit are not dangerous to players’ hearing. “The researchers found that the noise exposure of players of all of the instrument groups fell below acceptable 85 dBA (noise exposure level measured in decibels – dB, corrected to the frequency response of the human ear – A) for an eight-hour day recommended by institutions such as the U.S. National Institute of Safety and Health, the International Standard Organization (ISO) and also included in the Canadian Standards Association.”