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ANSI/ASA S12.65-2006 (R2020)

American National Standard for Rating Noise with Respect to Speech Interference

This standard defines a simple numerical method for rating the expected speech-interfering aspects of noise using acoustical measurements of the noise.

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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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