LGOB - A Procedure for the Assessment of Loudness

The measurement of human loudness perception has been an important problem. In this paper we describe a method we have developed for the assessment and quantification of loudness perception in normal hearing and hearing impaired subjects. The method uses 1/2 octave bands of noise, centered at 0.25, 0.5, 1.0, 2.0, 4.0 kHz, with levels between the threshold of the subjects hearing and levels that give a TOO-LOUD response. The signals are presented to the subject, randomized over frequency and level, and the subject is asked to respond with a loudness rating (one of: VERY-SOFT, SOFT, OK, LOUD, VERY-LOUD, TOO-LOUD).