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Acoustics Option
 FlexPro's newly released Acoustics Option performs accurate sound
level and sound power computations. In one easy and automatic step, you
can effortlessly characterize multiple channels of sound data. In order
to optimally estimate sound levels and power, FlexPro's innovative visual
Analysis Wizard offers real-time 2D and 3D graphs and true interactive
numerics. Acoustic analysis has never been this easy!
Calibrations made easy
To obtain accurate sound levels, a calibration must be performed. You may either
specify a fixed calibration value or let FlexPro calculate the value from
a calibration signal recorded with the calibrator attached to the microphone.
You may do an automatic calibration by attaching a calibrator to the microphone
prior to the measurement for a few seconds and then continue with your measurement.
Compute accurate octave analysis in time domain
An octave analysis based on FFT methods will often lead to incorrect results.
This is especially true at low frequencies. For most acoustic applications,
it is thus necessary to compute octave analysis using time domain filters.
With FlexPro's Analysis Wizard you easily set the frequency range and resolution.
The Wizard builds a complete report with just a couple of mouse clicks.
Features
- Sound power computation including all correction terms for
barometric pressure and temperature (K0), background noise (K1), environmental
correction (K2) and enveloping surface (Ls).
- Sound level evaluation: Frequency weighting Linear, A, B,
C. Time weighting Fast, Slow, Impulse Leq, Peak. Results may be level
versus time or last level. Easy calibration support.
- Octave analysis using time domain filters: Resolution octave,
third octave and 1/6, 1/12 and 1/24 octave. Frequency weighting of
result may be Linear, A, B, C.
Standards
The Acoustics Option has been developed in accordance to the following standards:
Standard
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Description
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Used With
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IEC 651
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Sound level meters
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Sound Level Computation, Frequency Weightings A, B and C
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IEC 804
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Integrating-averaging sound level meters
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Sound Level Computation
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ISO 3744, ISO 3745, ISO 3746
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Determination of sound power levels of noise sources using sound pressure. Engineering method in an essentially free field over a reflecting plane. Precision method grades 1 (3745), 2 (3744), 3 (3746)
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Sound Power Computation
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DIN 45 635
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Measurement of airborne noise emitted by machines
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Sound Power Computation
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DIN 45 651
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Octave filters for electro-acoustical measurements
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Octave Analysis
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DIN 45 652
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Third octave filters for electro-acoustical measurements
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Octave Analysis
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