DIN ISO 226-2006 声学.标准等响曲线(ISO 226-2003)

标准号：DIN ISO 226-2006
中文标准名称：声学.标准等响曲线(ISO 226-2003)
英文标准名称：Acoustics - Normal equal-loudness-level contours (ISO 226:2003);English version of DIN ISO 226:2006-04
标准类型：A42
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：A42
国际标准分类号：13.140
引用标准：ISO 266
适用范围：This International Standard specifies combinations of sound pressure levels and frequencies of purecontinuous tones which are perceived as equally loud by human listeners. The specifications are based on thefollowing conditions:a) the sound field in the absence of the listener consists of a free progressive plane wave;b) the source of sound is directly in front of the listener;c) the sound signals are pure tones;d) the sound pressure level is measured at the position where the centre of the listener's head would be, but in the absence of the listener;e) listening is binaural;f) the listeners are otologically normal persons ~n the age range from 18 years to 25 years inclusive.The data are given in graphical form in AnnexA and in numerical form in Annex B for the preferredfrequencies in the one-third-octave series from 20 Hz to 12 500 Hz, inclusive, in accordance with ISO 266.