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Calculator - Post-Processing Software

KLIPPEL provides a variety of post-processing scripts running in the Calculator (CAL) for calculating particular characteristics (e.g. mean SPL level in a particular frequency range), transformations, simulations, statistics analysis, curve manipulation and graphical display of data. The CAL module can be combined with other KLIPPEL modules (TRF, CAL, DIS, …) performing measurements and simulations to accomplish complex tasks. A documentation window describes the scope of the script, the mathematical processing and the practical application.

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  • dB-Lab

Related post-processing software

MAT module allows to write your own scripts  similar to the Calculator module (CAL) using SCILAB and MATLAB.


Calculator - Post-Processing Software

The screenshot above illustrates the measurement of the mean efficiency by the template CAL Mean Efficiency using the IEC 60268-5 paragraph 22.4.

KLIPPEL provides the following CAL operations with the dB-Lab frame software:

CAL Add curves

Adds "CurveA" weighted with "weightA" to "CurveB" weighted with "weightB"

CAL Add curves (power)

Adding the power of two curves given in 'dB' considering weighting factors applied to the power of the input curves; Phase information is accepted but neglected in the calculation.

CAL Add curvs (dB)

Adding the sound pressure of two curves given in 'dB' considering weighting of the sound pressure

CAL Sub curves

Subtracts "CurveB" weighted with "weightB" from complex "CurveA" weighted with "weightA" using curves in various formats (real, complex, dB + phase)

KLIPPEL provides the following object templates with the dB-Lab frame software where CAL scripts are combined with measurement modules:

EIA 7.4 Distortion

Distortion measurement according EIA-426-B 7.4 Section B - Distortion

Force - Deflection Curve

Using the results from LSI, the force -deflection curve is calculated.

Hi-2 Dist. Automotive AN 7

Weighted harmonic distortion (blat distortion) used for Application Note AN 7

IEC 20.6 Mean SPL

Mean sound pressure level in a stated frequency band according IEC 60268-5 chapter 20.6

IEC 21.2 Frequency Range

Effective frequency range according IEC 60268-5 chapter 21.2

IEC 22.4 Mean Efficiency

Mean efficiency in a frequency band according IEC 60268-5 chapter 22.4

IEC 24.4 Harmonic Distortion

Characteristic harmonic distortion according IEC 60268-5 chapter 24.4

IEC 24.6 Modulation Distortion

Characteristic modulation distortion according IEC 268-5 chapter 24.6

Max SPL Level THD at LIMIT

Maximal sound pressure level (SPL) for a given percentage of harmonic distortion (THD)

Response Smoothness

Frequency response smoothness

Separate suspension

Separated stiffness of surround and spider according to Application Note AN 2

SPL Merging Near / Farfield

Merges near-field response and far-field response according to Application Note AN 39

SPM Suspension Part

Nonlinear stiffness of spiders and smaller cones based on ONE-SIGNAL Method

Xmax10 % distortion

Maximal peak displacement producing 10 % distortion

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