CLIOwin 7 PCI User's Manual - Audiomatica

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. When taking impedance measurements refer
either to the internal impedance mode or to the ISense feature of the CLIOQC
Amplifier & SwitchBox Model 2,3 and 4. If QC Box Select is selected the hardware
setting of the QC Box determines directly the Impedance Mode (please refer to chap.
5.5.1)
Distortion Settings
An Edit Box allows you to type in the 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.
134 Chapter 11 - Sinusoidal