17
90
80
70
60
50
40
30
20
10
63
125
250
500
1000 2000 4000 8000
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCT
A
VE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR
BAND CENTER FREQUENCIES, Hz
PUMY-P125VMA
PUMY-P125YMA
PUMY-P125YMA
1
Hi
54
SPL(dB)
LINE
NOTCH
1m
1m
MICROPHONE
OC272A--1.qxp 03.9.4 11:06 AM Page 17
Содержание PUMY-P125VMA
Страница 91: ......