CLIOwin 7 PCI User's Manual - Audiomatica

12.6.4 REPRESENTING POLAR DATA
To represent the measured data we need to enter the Directivity Settings dialog and
press the browse button. Entering our data directory we find the situation in Fig.12.15:
Figure 12.15
The set of files is composed by 73 files; it is sufficient to choose one of them. It is now
important to identify the initial and last files for display, this is done with the Z-start and
Z-stop values to be input as in Fig.12.16. We choose to display all responses from
-180° to +180°, take the response on axis as reference and choose frequency limits
from 150Hz to 15kHz.
Figure 12.16
We are, at last, ready to start a directivity analysis.
The results are in Fig. 12.16 both as color map and 3-D plot.
Figure 12.16
Treating polar data we may be more interested in referencing the graph to the response
that our speaker shows on-axis. This is easily done pressing the reference button and
executing the processing again.
154 Chapter 12 - Waterfall and Directivity