Ngara
User Manual
7.5 Extreme Inputs
Table 30: Maximum Allowable Input Values
Description
Value
Maximum Acoustic Input
125
dB
Maximum Electrical Input
∼
11
V
pp
Minimum Supply Voltage
10
.
8
V
Maximum Supply Voltage
14
V
7.6 Nominal A-Weighted Sound Levels
Table 31: Nominal A Weighted Response
Frequency (
Hz
)
Ideal (
dB
)
Ngara (
dB
)
Difference (
dB
)
Tolerance (
dB
)
31.5
−
39
.
4
−
39
.
7
−
0
.
3
±
2
.
0
1 000
0
.
0
0
.
0
0
.
0
±
1
.
1
4 000
+1
.
0
+1
.
1
+0
.
1
±
1
.
6
8 000
−
1
.
1
−
0
.
9
−
0
.
2
+2
.
1
to
−
3
.
1
12 500
−
4
.
3
−
6
.
4
−
2
.
1
+3
.
0
to
−
6
.
0
7.7 Microphone
7.7.1 Frequency Response
The frequency response of a sound field microphone is expressed as the frequency response in the reference direction
of incidence (0°). Figure 42 shows an example for the frequency response of a UC-53A microphone.
Figure 42: UC-53A Frequency Response
Version — 25-7cd7566
Page — 73 of 80
Summary of Contents for Ngara
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Page 77: ...Ngara User Manual Figure 47 10Hz to 1kHz Version 25 7cd7566 Page 77 of 80...
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Page 79: ...Ngara User Manual Figure 49 1kHz to 10kHz Version 25 7cd7566 Page 79 of 80...
