User`s manual

Gating (Acquisition) Settings
Gated Check Box
Lets the user enable the gating acquisition mode. Checking it will automatically
check Stepped Check Box. That is, Gated Measurements are always carried out
in Stepped Mode.
Delay Edit Box
Lets the user define the delay, in ms, applied between the signal generation and
its acquisition. When different than 0, gating is active, even when gating or
Stepped check boxes (but not both) are not checked. Typical gated use is quasi
anechoic Frequency Response Analysis where it removes the time delay of the
sound leaving the Speaker and reaching the Microphone. Alternative use, with
gated not checked, might be removing the delay between the play and recording
head in a three heads tape recorder as well as any digital processor that
introduces delay in the signal path. When the settings are Not Stepped and Not
Gated the delay value is reset automatically to 0; CLIO introduces a large delay
anyway between start of generation and acquisition. The highest Delay value
accepted is 320ms.
Auto Delay Check Box & Auto Delay Frequency Edit Box
If Auto delay is checked, when delay is used (see above) CLIO tries, using the
Frequency entered in the Edit Box, to determine the delay automatically. The
value found is displayed in the Delay Edit Box; reopening the Settings Dialog
after the measurements has been taken allows to you to view the automatically
chosen delay time.
Impedance Settings
Set how Impedance is calculated and displayed. When taking impedance
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).
Ohm Right Scale
If selected the impedance scale will be activated on the right of the graph. When
a stereo measurement is taken, then channel B measures impedance sensing
current from a dedicated QCBox ISense output.
Distortion Settings
R&B Enabled
Enables Fast-Track Rub&Buzz calculation. Available only in QC software version.
THD Enabled
Enables THD and Harmonics calculation.
% Reading
Sets distortion curves unit to % instead of dB.
Rise [dB]
Value, in dB, used by the graphical routines to raise the display of the distortion
curves. Only the display of the curve is affected. The marker readings continue
to display the real value which, if the rise value is different than 0, differs from
the curve position.
140 11 SINUSOIDAL