User`s manual

Table Of Contents
12.2 WATERFALL, DIRECTIVITY & 3D CONTROL PANEL
Fig 12.1 and 12.2 show the Waterfall, Directivity & 3D control panel in many of its
possible configurations; as you may imagine the post processing capabilities of this
menu are very powerful.
It is important to understand which is the source of data for the waterfall and
directivity analysis.
Waterfall
A waterfall analysis is a post process applied to a measured impulse response.
Please refer to chapter 10 (MLS&LogChirp) to have details on how to measure an
impulse response.
Directivity
A directivity analysis is a post process applied to a set of measured frequency
responses. Please refer to chapters 9,10 and 11(FFT, MLS&LogChirp and
Sinusoidal) to have details on how to measure a frequency response.
3D
A 3D analysis is a post process applied to a set of measured MLS&LogChirp
frequency responses. Please refer to chapter 10 (MLS&LogChirp) to have details
on how to measure a frequency response.
12.2.1 COMMON TOOLBAR BUTTONS AND DROP DOWN LISTS
Starts a waterfall, directivity or 3D calculation.
Analysis drop down
Selects Waterfall, Directivity or 3D analysis.
Smoothing drop down
Selects the smoothing factor in fractions of octave.
Enters the settings dialog. See 12.3.1 and 12.5.1.
12 WATERFALL , DIRECTIVITY & 3D 155