Comparison of non-stationary loudness results to equal loudness contours
Keywords:
Human perception, Loudness models, Nonstationary, Pure tones, Sinusoidal signalsAbstract
A study was conducted to demonstrate the use of a methodical and scientific approach to evaluate the performance of loudness models for non-stationary sounds. The approach evaluated the performance of two models, such as the proposed German DIN 45631/A1 and the Glasberg and Moore unsteady model. The performance of these models were evaluated to accurately predict reference steady loudness values and compare these to the ISO 226 equal-loudness contours. The main objective of the study was to evaluate the differences existing between these models. The two methods had different approaches, but achieved the same end result of outputting a value for non-stationary loudness that correlated with human perception. A first used in the study was to evaluate the non-stationary approach using stationary sounds and demonstrate the use of pure tone sinusoidal signals as stationary input.Additional Files
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