SAMURAI-Option Sound level meter

• Class 1 according to IEC 60561, 60804, 61672
• A, C and Z frequency weightings simultaneously
• Fast, Slow and Impulse time weightings
• L_p, L_max, L_min, L_eq, L_peak aller Pegelwerte
• L_E, L_Atm1/3/5, L_n
• 10 Perzentile
• Evaluation of impulsiveness, low frequency tonality and "Taktmaximal" level
• Parallel use of up to 5 sound level meter instances per channel; each with up to 61 values in variable time intervals
• Triggered data storage possible

SAMURAI-Option 1/1 & 1/3 Octaves

• Calculation with digital filters according to IEC 61260 class 0
• Real time 1/1 and 1/3 octave analysis
• 1/3 octaves ranging from 0.04 Hz ... 80 kHz
• Adjustable 1/3 octave bands (acoustics, vibration and user-defined settings)
• Averaging modes: linear, fast, slow and exponential
• Simultaneous display of multiple spectra: current values, max, min and Leq
• Display and storage of sound level sums
• Spectra layout options include bar, bar contour or line
• Up to 5 independent analyser instances per channel
• Triggered storage possible

SAMURAI-Option Reverberation Time

• Reverberation time RT60 calculated as T30, T20, T15, EDT
• Reverberation times from 0.04 s to 60 s
• Frequency range from 25 Hz to 20 kHz
• Multi-channel measurements can be done simultaneously or in succession
• Multiple microphone and speaker positions possible
• Excitation options: impulse, noise and sine sweep
• For sine sweep mode: backward integration of the impulse response
• Display of the specific decay curves with optional manual adjustment of the regression line
• Zoom functionn
• Average reverberation time derived from several measurements and measurement positions
• Evaluation according to ISO 3382-2, BT 16 criteria: noise floor, correlation coefficient, degree of curvature & standard deviation
• Measurement of structure-borne noise reverberation time using shakers and accelerometers