Bonello Chart Tab

The Bonello Chart is designed to plot the number of modes per 1/3 octave band. It's functionality is based upon Bonellos assertion that good sounding rooms have modal support in each of these bands. In addition to the traditional 1/3 octaves, the application allows a 1/6 octave view and a floating band view.

Include on Mode Analysis Report: This checkbox designates whether this section will be included on the final Mode Analysis Report generated in the Report Manager.

Select the Plot: This feature allows the user to click anywhere on the plot thus highlighting each point on the plot. Then the user may select any of the points where upon the number of modes in that band are displayed on the bottom of the screen.

Scenario: Displays the dimensions the calculation is based upon. The Bonello chart uses only primary dimensions and assumes the existence of tangential and oblique modes.

Starting Band: These option selectors allow the user to choose either the traditional band demarcations or a floating set of bands calculated based upon the lowest calculated mode.

Standard - This setting sets bands based upon the traditional band demarcations used on most test equipment.

Floating - The Floating bands are based upon the lowest calculated mode becoming the lower limit for the calibrating band. This means that the bands are shifted to show if the lowest mode may still only be less than 1/3 or 1/6 octave away from the next mode while the traditional setting may place them in separate bands.

Resolution: This option selector allows the user to choose either 1/3 octave bands or 1/6 octave bands for the analysis. This useful given that the 1/6 octave is often referred to as a closer approximation of the resolution limit (critical band) of human hearing in the deep bass frequency region.