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CLIOwin 6.5 PCI User's Manual - Audiomatica Srl

CLIOwin 6.5 PCI User's Manual - Audiomatica Srl

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11.2.1 TOOLBAR BUTTONS<br />

Starts the sinusoidal measurement.<br />

If pressed the measurements will be autosaved. The current autosave definitions<br />

apply; see 6.3.1 for details.<br />

Automatically applies the defined post-process after the measurement has been<br />

taken.<br />

Displays the phase response instead of modulus response.<br />

Enters the Sinusoidal Post-Process Dialog, described below.<br />

Enters the Sinusoidal Setting Dialog, described in detail below. It is the heart of the<br />

whole menu and should be thoroughly understood before pressing Go.<br />

Displays second harmonic distortion, risen the amount of dB defined in the Setting<br />

Dialog.<br />

Display third harmonic distortion, risen the amount of dB defined in the Setting<br />

Dialog.<br />

Display fourth harmonic distortion, risen the amount of dB defined in the Setting<br />

Dialog.<br />

Display fifth harmonic distortion, risen the amount of dB defined in the Setting<br />

Dialog.<br />

All the distortion buttons are disabled when Ohm is selected as y scale unit.<br />

10.2.2 TOOL BAR DROP DOWNS<br />

input channel<br />

Selects the input channel configuration. See 5.6 for details.<br />

Y Scale units<br />

Selects the measurement Y scale unit. Possible choices are dBV, dBu, dBRel as<br />

Voltage units, dBSPL as pressure unit, Ohm as impedance unit. dBV and dBu refer<br />

the 0 dB on the scale to 1 V and 0.775 V, respectively. dBrel refers the 0 dB on the<br />

scale to the value set within the MULTI-METER. dBSPL switches the system to work<br />

in pressure mode. A conversion from Volts to Pressure is accomplished, based on<br />

the Microphone sensitivity set in the dedicated Dialog. Once the measure is taken<br />

the conversion is done and all the internal data are stored in Pressure. This means<br />

that further changes to Microphone sensitivity do not affect in memory or saved<br />

measurements. Ohm switches the system to convert the measurements in Ohm<br />

basing the conversion on the Impedance Mode Settings available in the Settings<br />

Dialog. Again, once the measure has been taken data are immediately converted.<br />

Smoothing<br />

Allows to select a Frequency smoothing of the active curve. The smoothing algorithm<br />

averages all the value within the selected fraction of octave band, surrounding each<br />

analysis Frequency. It is a non destructive post process that can be applied or<br />

106 Chapter 11 - Sinusoidal

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