Implementing Loudness Models in MATLAB

Joseph Timoney; Thomas Lysaght; Marc Schoenwiesner; Lorcán Mac Manus
DAFx-2004 - Naples
In the field of psychoacoustic analysis the goal is to construct a transformation that will map a time waveform into a domain that best captures the response of a human perceiving sound. A key element of such transformations is the mapping between the sound intensity in decibels and its actual perceived loudness. A number of different loudness models exist to achieve this mapping. This paper examines implementation strategies for some of the more well-known models in the Matlab software environment.
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