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ANSI S3.4-2007

American National Standard Procedure for the Computation of Loudness of Steady Sound

American National Standard Procedure for the Computation of Loudness of Steady Sounds," includes a PDF and a ZIP file. The ZIP file contains an application program for use with the standard.

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Acoustical Society of America [ASA]


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As the voice of the U.S. standards and conformity assessment system, the American National Standards Institute (ANSI) empowers its members and constituents to strengthen the U.S. marketplace position in the global economy while helping to assure the safety and health of consumers and the protection of the environment.

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