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24280-1-0-loudness-scale-chart-extended—english-2015
24280-1-0-loudness-scale-chart-extended—english-2015
24430-1-0-loudness-scale-chart-simple—spanish-2014

Loudness Perception Scale

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Additional information

Loudness Perception Scale

Simple – English Digital Download, Simple – Spanish Digital Download, Extended – English Digital Download, Extended – Spanish Digital Download