Svantek Shawcity SVAN 977C, User Manual

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SVAN 977C User Manual
Bar plot of RT60 results
1. Number of averaged results
2. RT 1/3 octave plot
3. Name of the RT result and its value
4. Used RT60 calculation method
5. Cursor position
6. RT results for Total values
7. Cursor position value (central band
frequency)
Changing RT result
When the field 3 is active the RT60 analysis
result can be changed with the
◄
/
► key
pressed together with <Alt> .
<Alt/
►
>
Changing cursor position
You may change the cursor position with the
◄ / ► key.
►
..
.
Sound pressure decay curve plot
1. Logger file content
2. T0 marker position
3. Decay curve plot
4. Central frequency of selected by cursor
1/3 octave band
5. Result value (SPL) for the cursor
position
6. Name of the logger file
7. T1 marker position
8. Cursor position
9. RT60 method
10. Type of data displayed: Raw ,
Smoothed or Integrated
11. Calculated steady upper sound level
value
12. Calculated steady lower sound level
value
13. RT result ( RT30 , RT20 , EDT and
RT User ) with calculated reverberation
time
14. Cursor measurement time position
T0 marker position is used as a starting point for all three (and
the
RT User also) reverberation time results.
T1 marker position is labelled on the display (indicator A7 ) as
EDT , RT20 or RT30 according to which the most restricted
definition of the RT condition is fulfilled.
3
4
12
13
2 11
6 9
14 5
7 8 10 1
2
3
6
7
1 5
4