DIN 45631 Procedure for calculating loudness level and loudness / Note: To be amended by DIN 45631/A1 (2008-01).
DIN 45631/A1 Calculation of loudness level and loudness from the sound spectrum - Zwicker method - Amendment 1: Calculation of the loudness of time-variant sound; with CD-ROM
DIN 45681 Acoustics - Determination of tonal components of noise and determination of a tone adjustment for the assessment of noise immissions
DIN 45692 Measurement technique for the simulation of the auditory sensation of sharpness