User`s manual

Table Of Contents
measurements refer either to the Internal impedance mode or to QC Box
Select (the hardware setting of the QC Box determines directly the Impedance
Mode, refer to 4.6). When checking Ohm Right Scale the impedance is referred
to the right Y scale
10.2.4 MLS & LOG CHIRP POST-PROCESSING TOOLS
Figure 10.3
Loads an MLS & LOG CHIRP process.
Saves an MLS & LOG CHIRP process.
Adds a data value or compatible file to the current measurement.
Subtracts a data value or compatible file to the current measurement.
Multiplies the current measurement by a data value or compatible file.
Divides the current measurement by a data value or compatible file.
Shifts the current measurement by a dB value.
Multiplies the current measurement by complex frequency.
Divides the current measurement by complex frequency.
Uses a reference measurement file taken at speaker terminals to calculate 1m
sensitivity in dBSPL/W. The reference file should have dBV Y units while the one
in memory should be in dBSPL.
Process the current measurement with an octave band filter. It is possible to
input the mid-band value and the filter bandwidth.
Temporally shifts the current measurement by a ms value. Affects phase
response.
Merges the current measurement with the part below the selected transition
frequency of a selected compatible file.
Combines the actual measurement and the selected file to obtain a constant
current impedance measurement. Both files should be in dBV.
Combines the actual measurement and the selected file to obtain a constant
voltage impedance measurement. Both files should be in dBV.
118 10 MLS & LOG CHIRP