A measure of the sound level (loudness). The decibel scale is a logarithmic scale; as an example, a 90 dB noise is ten times louder than 80 dB noise. The A weighted is the scale used for most ...
The scale has been adopted by the International Standards Organization for international use. Contours of perceived noisiness (from ISO recommendation R507, 1966). Ref.: K.D. Kryter, "The Meaning and ...
The PHON scale was devised to express this subjective impression of loudness, since the DECIBEL scale alone refers to actual sound pressure or sound intensity levels. Historically, the A, B, and C ...
The Scientific Committee of the IWC, at its 2004 meeting, stated that there is compelling evidence implicating anthropogenic sound as a potential threat to marine mammals, and that this threat is ...
Sound levels are measured on a scale known as the decibel \(dB\) scale. The higher the number the greater is the sound level. Too much noise can damage hearing. Exposure to 90 decibel sound levels ...