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2615 and the Beat Frequency Oscillator Type HH3 as illustrated in Fig.
5.8
a measuring arrangement for the
automatic
recording on frequency cali-
brated paper of the frequency response of tweeters is
gained.
To
give
results
2615
4133
Anechoic Chamber
OA 0028
2804
i6f84o
Fig. 5.8.
Automatic
recording of loudspeaker (tweeter) frequency response.
~
ODDDDDDDOO:DDDODODDDODODDOOOOOOODOOOODDODDDOOOOOOO
8r
O~jatr.
5025
M-16(1.
a.o.I&K).r
l.o.la.Kpr
1075
- -
.- -
..
Tweeter
Loudspeaker.
o;stance
Constant
Voltage
.
100
1000
10 000
Fig. 5.9. Free field
characteristic
of a tweeter loudspeaker.
.
...
f618-¥1
33
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