American National Standard Methods for the Field Measurement of the Sound Output of Audible Public Warning Devices Installed at Fixed Locations Outdoors American National Standards of the Acoustical Society of America / 01-Jan-1992 / 12 pages
Describes relatively simple procedures for measurement reporting certain properties of sounds produced by audible public warning devices. Methods are given for the measurement of the C-weighted sound level for determining the 1/3 octave band, etc.
Vendor Note: This American National Standard describes relatively simple procedures for measuring and reporting certain properties ofsounds produced by audible public warning devices. Methods are given for the measurement of the C-weighted sound leveland for determining the one-third octave band containing the fundamental frequency of tonal warning sounds produced byaudible public warning devices at a distance of 100 ft (30.5 m) from the device and at the mounted height of the device. Amethod is also given for measuring the maximum level of the sound from a warning sound source at the heads of bystanders onthe ground. These methods may be used by manufacturers to specify, in part, the sound produced by their products, bycustomers to verify compliance with pertinent sound output specifications, and by warning system designers to estimate warningsound coverage.
