3.4 ACOUSTIC ANALYZERS

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For general acoustic measurements, the measurement of the sound levels on

the A- and C-scales, along with octave band or 1/3 octave band data, is

usually sufficient. For detailed analysis and diagnosis, however, more information

may be required. In addition, other acoustic parameters or data

averaging may be needed. In these cases, acoustic analyzers are often used.

Most of the commercial sound level meters are digital, microprocessor-

controlled units. Various levels of acoustic analysis may be provided as

features of the sound level meter. In addition, many sound level meters have

the capability of transferring the data to a personal computer (PC) for postprocessing

using special-purpose software.

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