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siNoise
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Class 1 Sound Level Meter according to IEC 60651 / 60804 / 61672
 
  Soundbook with siNoise is an officially calibratable dual-channel sound level meter according to IEC 60651 / 60804 / 61672 (PTB type approval 21.21/ 01.06).
The instrument features separate windows conforming to the above standards for each measurement channel of the sound level meter and is located on a protected partition of the computer, i.e. the software and the setup cannot be changed by the user.
The included real-time 1/3 octave analyzer and level recorder windows are not type-approved features of this instrument. Because siNoise can only be used with type-approved microphones and always works in extended range mode with 120 dB dynamic range and with default parameters, this program is very easy to operate. By double-clicking on a window, this window is maximized or minimized. Changing the display properties (colors, fonts, line thickness, screen orientation) has no influence on the data acquisition and storage. The sound level meter measures 10 values per channel:
Class 1 sound level meter
  • Measurements according to IEC 60561, 60804, 61672
  • Measurement of: LAF, LAeq, LAS, LAFmax, LZF, LAtm5, LAE, LAleq, LCpeak, LZpeak
  • All values are displayed as digits; LAF and LAeq are displayed as main values in large digits and also as bars
  • Officially calibratable (PTB type approval)
Real-time 1/3 octave analyzer
  • Class 0 real-time third-octave filters according to IEC 1260
  • Measurements from 20 Hz ... 20 kHz
  • Momentary, max, min spectra simultaneously
Level recorder
  • Level recording with Fast, Slow, Impulse and Peak weightings
  • Scrolling time axis with display window of 1 min
  • Markers are displayed as traces in key color
The measurement and display functions of siNoise are fully compatible with the respective SAMURAI functions. The data stored under siNoise can be opened and processed with SAMURAI and with Noise & Vibration Works. Soundbook + siNoise are usually used when a type-approved calibrated measuring system is required, e.g. for juristic purposes.
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