ISO 226:1987

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Acoustics - Normal equal-loudness level contours

Specifies the relations existing between the sound pressure levels and frequencies of pure sinusoidal continuous tones in several conditions. These relations are expressed as curves and represent a fundamental property of the human auditory system.

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Acoustics - Normal equal-loudness level contours

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ISO 226:1987

Acoustics - Normal equal-loudness level contours

Are the documents at the ANSI Webstore in electronic Adobe Acrobat PDF format only?

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