Svantek SV 971A, User Manual

Page: 204 / 305

SV 971A User Manual
– Appendixes
204
B.2.1.6. Record with Summary Results
The format of the data frame is as follows:
HS L (optional) D L (optional) HE
where:
HS starting header (1 word)
L length of the block (field is optional and occurs only when b7..b0 in header are set to zero)
D Summary Data:
- Main results (cf. Tab. B.1.17_SLM, B.1.17_DM)
- Statistical levels (optional, cf. Tab. B.1.18)
- 1/1 Octave analysis results (optional, cf. Tab. B.1.19)
- 1/3 Octave analysis results (optional, cf. Tab. B.1.20)
- The results of the statistical analysis in profiles (optional, cf. Tab. B.1.21)
HE ending header (1 word), which differs from the HS only on b11 bit (thanks to it, it is possible
to analyse the recorded file starting from its end)
The HEADER format is as follows:
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
where:
b15 - 1
b14 - 1
b13 - 0
b12 - 0,
b11 - header type:
0 - HS
1 - HE
b10 - 0
b9 - 1
b8 - 1
b15÷b8 – HS (0xC3), HE (0xCB)
b7÷b0 – length of the block (if zero length of the block is saved in additional word L)
B.2.1.8. Record with name of the comment file
The format of the data frame is as follows:
HS D HE
where:
HS starting header (1 word)
D
The full name of the comment file (e.g. “REC62.WAV”).
HE ending header (1 word), which differs from the HS only on b11 bit (thanks to it, it is possible
to analyse the recorded file starting from its end)