Radio Shack Sound Level Meter Manuel du propriétaire télécharger pdf (Page 11)

11

Controls

The effect of brief sound peaks is mini-

mized in the

SLOW position.

WEIGHTING

Set WEIGHTING to weight the sound mea-

surement for a particular frequency range.

When set to

A, the meter primarily mea-

sures frequencies in the 500–10,000 Hz

range, which is the area of greatest sensi-

tivity to the human ear. When set to

C, the

meter measures uniformly over the fre-

quency range from 32–10,000 Hz, giving

an indication of the overall sound level.

Typical A- and C-weighted response curves

(A-weighted with random-incidence)

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 19 20

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