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134
SV
104BIS User Manual
Table C.2
ST 104B Free Field corrections with the use of the Bruel & Kjaer 4226 sound calibrator
[dB]
Frequency [Hz]
31.5
63
125
250
500
1000
2000
4000
8000
Uncertainty
(IEC 62585:2012)
0.25
0.25
0,25
0.25
0.25
0.25
0.25
0.25
0.35
ST 104B
Free Field
corrections
0.00
0.00
0.00
0.00
0.00
0.13
0,54
1.50
3.94
Table C.3
Typical ST 104B and SV 104BIS frequency characteristics
Frequency
ST 104B Free Field
response
SV 104BIS Free
Field compensated
response
Compensated case
effect
Uncertainty
(IEC 62585:2012)
[Hz]
[dB]
[dB]
[dB]
[dB]
20
-0.74
-0.78
-0.04
0.25
25
-0.13
-0.17
-0.04
0.25
32
0.00
-0.04
-0.04
0.25
40
0.04
0.00
-0.04
0.25
50
0.03
-0.02
-0.04
0.25
63
0.03
-0.01
-0.04
0.25
79
0.02
-0.02
-0.04
0.25
100
0.01
-0.03
-0.04
0.25
126
0.04
0.01
-0.04
0.25
158
0.03
0.00
-0.03
0.25
200
0.03
0.00
-0.02
0.25
251
0.04
-0.01
-0.05
0.25
259
0.04
-0.04
-0.08
0.25
266
0.04
-0.08
-0.12
0.25
274
0.03
-0.11
-0.14
0.25
282
0.04
-0.12
-0.16
0.25
290
0.02
-0.11
-0.13
0.25
299
0.02
-0.09
-0.11
0.25
307
0.03
-0.04
-0.07
0.25
316
0.07
-0.01
-0.08
0.25
325
0.06
-0.03
-0.09
0.25
335
0.04
-0.10
-0.14
0.25
345
0.03
-0.15
-0.18
0.25
355
0.01
-0.13
-0.14
0.25
365
0.00
-0.11
-0.11
0.25
376
0.00
-0.08
-0.07
0.25
387
-0.03
-0.12
-0.09
0.25
398
-0.04
-0.19
-0.15
0.25
410
-0.04
-0.19
-0.14
0.25
422
-0.03
-0.05
-0.02
0.25
434
-0.03
0.06
0.09
0.25
447
-0.03
0.01
0.04
0.25
460
-0.03
-0.10
-0.08
0.25
473
0.00
-0.13
-0.12
0.25
487
0.01
-0.07
-0.08
0.25
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