The Threshold of Hearing A sound is at the threshold of hearing when it is just intense enough to evoke a response from the listener. ... To describe a threshold completely, one must report the nature of the sound, physical measurements made to specify the sound, and, in addition, ... Many different sounds have been used in measuring the threshold of hearing, including pure tones, speech, and noise.
|Title||:||Industrial Hygiene Engineering & Control, 552: Student manual, [Section 8|
|Author||:||National Institute for Occupational Safety and Health. Division of Training & Manpower Development, Bruce B. Byers, Ronald J. Hritz, James C. McClintock|