Sound level means the A-weighted Sound Pressure Level;
Sound level means the weighted sound pressure level obtained by the use of a sound level meter and frequency weighting network, such as A, B, or C as specified in the American National Standards Institute specifications for sound level meters. (ANSI SI.4 - 1971, or the latest approved revision thereof.) If the frequency weighting employed is not indicated, the A-weighting shall apply.
Sound level means the noise level measured in decibels on the A-weighted scale of a sound level instrument that conforms to recognized industry standards and is maintained according to the manufacturer’s instructions.
Examples of Sound level in a sentence
Sound level analysis prepared by the wind generator manufacturer or qualified engineer.
Sound level meters which are employed to measure the intensity of sound are calibrated in "decibels".
Sound level meter in compliance with the International Electrotechnical Commission Publications 651: 1979 (Type 1) and 804: 1985 (Type 1) specifications shall be used for carrying out the noise monitoring.
Sound level meter in compliance with the International Electrotechnical Commission Publications 651: 1979 (Type 1) and 804: 1985 (Type 1) specifications shall be used for noise monitoring.
Sound level measurements shall be made with a sound level meter that meets the requirements of the latest revision of ANSI S1-4 Type 1 or better.
More Definitions of Sound level
Sound level means the weighted sound pressure level measured by the use of a metering characteristic and weighted as specified in American National Standards Institute Specifications, Section 1.4-1971. The sound pressure level of a sound expressed in decibels is twenty (20) times the logarithm to the base ten (10) of the ratio of the pressure of the sound to the reference sound pressure of twenty (20) micropascals. In the absence of any specific modifier, the level is understood to be that of a mean-square pressure.
Sound level means the quantity in decibles measured by a sound level meter satisfying the requirements of American National Standards Speci- fication for Sound Level Meters S1.4– 1971. This publication is available from the American National Standards In- stitute, Inc., 1430 Broadway, New York, New York 10018. Sound level is the fre- quency-weighted sound pressure level obtained with the standardized dy- namic characteristic ‘‘fast’’ or ‘‘slow’’ and weighting A, B, or C; unless indi- cated otherwise, the A-weighting is un- derstood.[39 FR 38215, Oct. 29, 1974]
Sound level means the weighted sound pressure level measured by the use of a metering characteristic and weighing A, B, or C as specified in American National Standard Specifica- tion for Sound Level Meters S1.4–1971 or subsequent approved revision. The weighting employed must be specified, otherwise A-weighting is understood.
Sound level means the level, in decibels, measured by instrumentation which satisfies the requirements of American National Standard Specifica- tion for Sound Level Meters S1.4–1971 Type 1 (or S1A) or Type 2 if adjusted as shown in Table 1. This publication is available from the American National Standards Institute, Inc., 1430 Broad- way, New York, New York 10018. For the purpose of these procedures the sound level is to be measured using the Aweighting of spectrum and either the FAST or SLOW dynamic averaging characteristics, as designated. It is ab- breviated as LA.
Sound level means the instantaneous Aweighted sound pressure level, in decibels, as measured with a sound level meter set to the “A” weighting scale, slow response.
Sound level means the sound pressure level measured in decibels with a sound level meter set for A-weighting; sound level is expressed in dBA.
Sound level. ’ means the equivalent continuous rating level as defined in SANS 10103, taking into account impulse, tone and night-time corrections;