SQA – ISO 532B Loudness (Sones)

Sound Quality Analyzer conducts psychoacoustic loudness analysis of audio WAV files.

Loudness (sones) – A measure of the perceived sensation of the volume of a sound.  The loudness of the sound considers not only the level of the sound but the frequency composition of the sound.  Broadband sounds will have a lower loudness than narrowband signals for a given level.  Loudness in Sones is a linear quantity, meaning that a sound with a Loudness of 2 Sones is perceived as twice as loud as a sound with a Loudness of 1 Sone.  Loudness has been standardized in the ISO 532B standard.

Sound Quality Analyzer Loudness
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