User Manual

WAVELAB
25 – 622 Analysis
Setting parameters and performing the analysis
1. Set up the parameters.
On most of the tabs, you will find settings determining exactly how the
analysis should be performed. For example, on the Peaks tab there are
two parameters:
• “Maximum number…” allows you to set an upper limit for the number of peaks re-
ported. For example, if you set this to “10”, the program will only report the ten
highest peaks in the file.
• “Minimum time…” allows you to specify the minimum interval between two peaks
found. For example, if this is set to “5 s”, there will always be at least five seconds
between the reported peaks.
These two settings allow you to make sure that the reported peaks are not
all in the same area. Click the question mark icon in the dialog for details.
2. If desired, move the wave cursor to a new position.
The Peak and Loudness tabs report values specifically for the position of the wave cursor,
so if this is of interest, you should make sure the wave cursor is at the position for which you
want a readout.
3. Click Analyse.
Checking and browsing the results
Checking the results on the Pitch and Extra tabs is simple, since there is
only one value returned for the whole section of analysed audio. Just click
on the tab and read off the values in the dialog (for details about the val-
ues, see later in this chapter).
For the other tabs, slightly more advanced options are available. This is
since all these analysis methods provide their results as a number of posi-
tions in the file, positions that indicate peaks, glitches, etc. We call these
“hot points”.
You can browse (jump) between these points in a very practical way. Pro-
ceed as follows:
1. Click on the tab that represents the values you are interested in.
For example, let’s say you click the Loudness tab.
2. Check the display for maximum/minimum values in the entire section anal-
ysed.
For the Loudness tab, these values represent the maximum and minimum amplitudes in the
left and right channels respectively (for a stereo file).
3. Decide which of these values you want to browse.
For example, say you want to browse the minimum amplitudes in the right channel.