Svantek SVAN 979 - Page 162

162
SVAN 979 User Manual
Band
Frequency band in which the FFT analysis is performed:
20 kHz, 10 kHz, 5 kHz, 2.5 kHz, 1.25 kHz, 625 Hz,
312 Hz, 156 Hz and 78 Hz.
Chapter
11.2.4
Filter
Weighting filters used during the FFT analysis: A, C, B, Z
in the sound mode and HP in the vibration mode.
Chapter
11.2.4
Window
Weighting window for the FFT analysis: Hanning,
Rectangle, Flat Top or Kaiser-Bessel.
Chapter
11.2.4
Lines
Number of lines in the FFT spectrum: 1600, 800 or 400.
Chapter
11.2.4
Averaging
Averaging used in the FFT analysis: Linear or
Exponential.
Chapter
11.2.4
Time Constant
Time constant used in the exponential averaging of FFT
spectra.
Chapter
11.2.4
RT60 Settings
Screen that enables setting the reverberation time
measurement parameters: Start Delay, Method, Octave,
Freq. Range, Recording Time, Time Step, Smoothing,
Internal Signal, Amplitude, Noise Mar., Logger Name
and Level.
Chapter
12.2
Appendix E
Start Delay
Delay between pressing the <Start> key and the start of
measurement integration.
Chapter
12.2
Method
Method of the RT60 calculation: Decay (Interrupted
Noise Method) or Impulse (Impulse Response Method).
The selection of the method depends on the used type of
the sound source.
Chapter
12.2
Appendix E