Improvement of the Niese Method to Calculate Loudness Levels

Starting from experiences with the Niese method of calculating loudness levels, improved rules for the calculation and new nomograms for the determination of additional constants have been developed, by evaluating a large number of new subjective loudness measurements. Statistical characteristics (standard deviation and range of reliability) are determined for the correlation between the results obtained by the Zwicker, Stevens and the improved Niese method of calculating loudness levels and the subjective judgements.