Sound Levels - Sinclair SDV5 Series Service Manual

8 Sound Levels

8.1 Overall
Figure 8.1: Ceiling & floor sound pressure level measurement
8.2 Octave Band Levels
Figure 8.2: SDV5-36FA octave band levels
80
70
60
50
SSH
40 SH
H
M
L
30
SL
SSL
20
10
0
63 125
Octave band center frequency (Hz)
201805
Table 8.1: Ceiling & floor sound pressure levels
Model name
SDV5-36FA
SDV5-45FA
SDV5-56FA
SDV5-71FA
SDV5-80FA
SDV5-90FA
SDV5-112FA
SDV5-140FA
Notes:
1. Sound pressure levels are measured in a semi-anechoic chamber.
During in-situ operation, sound pressure levels may be higher as a
result of ambient noise.
250 500 1000 2000 4000 8000
1
Sound pressure levels dB(A)
SSH SH H M L
40 39 38 38 37
43 42 41 41 39
43 42 41 41 39
43 42 41 41 39
45 44 43 43 42
45 44 43 43 42
47 46 45 45 44
47 46 45 45 44
Figure 8.3:SDV5-45,56,71FA octave band levels
80
70
NC65
60
NC60
NC55
50
NC50
SSH
NC45
40 SH
H
NC40
M
L
NC35
30
SL
SSL
NC30
NC25
20
NC20
NC15
10
0
63
SL SSL
36 36
38 38
38 38
38 38
41 40
41 40
43 42
43 42
125 250 500 1000 2000 4000 8000
Octave band center frequency (Hz)
NC65
NC60
NC55
NC50
NC45
NC40
NC35
NC30
NC25
NC20
NC15
17