ICF illustration library English version

ENVIRONMENTAL FACTORS

CHAPTER 2 NATURAL ENVIRONMENT AND HUMAN-MADE CHANGES TO ENVIRONMENT e250 Sound A phenomenon that is or may be heard, such as banging, ringing, thumping, singing, whistling, yelling or buzzing, in any volume, timbre or tone, and that may provide useful or distracting information about the world. inclusion sound intensity; sound quality

e2500	e2501	e2508	e2509
Sound intensity	Sound quality	Sound, other specified	Sound, unspecified
Level or volume of auditory phenomenon determined by the amount of energy being generated, where high energy levels are perceived as loud sounds and low energy levels as soft sounds.	Nature of a sound as determined by the wavelength and wave pattern of the sound and perceived as the timbre and tone, such as harshness or melodiousness, and which may provide useful information about the world (e.g. sound of dog barking versus a cat miaowing) or distractions (e.g. background noise).

Illustrations copyright by TAI TAKAHASHI, International University of Health and Welfare.