Svantek SV 977D - Page 220

220
SV 977D User Manual - Appendixes
Word
number
Name
Comment
17
Filter
spectrum measurement filter:
0 – HP
1 – Z
2 – A
3 – C
5 – B
7 – U
8 – AU
18
InstFreq
frequency of instantaneous spectra counting
…
reserved
Table B.22. Reverberation time analysis parameters (RT60)
Word
number
Name
Comment
0
0nn1Ah
1Ah = block identifier
0nnh = block length in words
1
ResultsType
type of results included in the block with the identifier 1Bh:
1 – single measurement results
2 – averaged results
2
Method
measurement method:
1 – Decay
2 – Impulse
3
Spectrum
Type of measured spectra:
1 – 1/1 octave
2 – 1/3 octave
4
TimeStep
measurement step in milliseconds
5
MeasureTime
measurement time in seconds
6
reserved
7
DispSmooth
parameter "smoothing" of the time curve (0 means no smoothing)
8
NoiseMargin
level of noise margin in the format 0,01 dB
9
reserved
10
AverNo
number of averaged results
…
reserved
Table B.23. RT60 T0 offset parameters
Word
number
Name
Comment
0
0xnn71h
71h = block identifier
0nnh = block length in words
1
SystemBase
filter database (2 or 10)
2
OctaveDivider
octave division (type of filters):
1 – octave filters
3 – 1/3 octave filters