CLIOwin 6.5 PCI User's Manual - Audiomatica Srl

Figure 12.11
12.5.3 TAKING THE MEASUREMENTS
You are now ready to begin the measuring session. We suggest you to take one first
measurement (with the speaker in place over the turntable) to verify all the parameters,
especially viewing the acquired impulse response and setting the start and stop values
of the measurement window. These values will be applied to all the measurements
taken; consider, in this respect, the problem of the trajectory of the acoustic center of
the speaker during the rotation.
The last thing to do is to activate Autosave and Loop; to do this we press the
corresponding toolbar buttons (Fig.12.12).
Figure 12.12
Press Go. After each MLS measurement is taken you will see the turntable rotating and
CLIOwin waiting for a time sufficient for the turntable to stabilize before automatically
take the next measurement. Should this time not be sufficient you have to reset the
turntable speed value accordingly. The autosave function will refresh the filename after
each measure (Fig.12.13).
Figure 12.13
After the 25 measurements are taken the session should end while the autosave and
loop buttons reset.
12.5.4 REPRESENTING POLAR DATA WITH A WATERFALL
To represent the measured data we need to enter the Waterfall Settings dialog, select
the File Display mode and then press the browse button. Entering our data directory we
find the situation in Fig.12.14:
124 Chapter 12 - Waterfall