Operation Manual

6.1 MENU (File, Edit, Processing, Options, Help)
File
From here you can create a new project, open an existing and save a project.
A BeamEngine project has the le extension (.q)
Save a Beamsteering File (.bef)
Save a 3D Balloon le (.xhn) for export into acoustical simulation programmes.
Print a detailed project sheet. This includes Parameters, Project Notes & graphs.
‘Export’ generates a screenshot of your current project (.jpg)
Edit
From here you select your QFlex Model (Keyboard shortcut – F8)
Add menu item
Delete menu item
Processing
Optimize – Creates Beamsteering algorithm (Keyboard shortcut - CTRL + Enter)
Update Graphs – Regenerates graphics (Keyboard shortcut – SHIFT, CTRL + Enter)
Options
Preferences
Optimizer Tab
Default Property
Silent and Don’t Care is explained in the menu.
The Master Beta function
Master multiplication factor to apply to regularization factors beta given in global A.wf(woofer) and A.tw(tweeter).
Normally Masterbeta = 1, but it can be reduced to 0.1, trading some SPL for sharper directivity at the lower end of
each sub-array’s (tweeter or woofer) working range. It is recommended to use the default setting except in
exceptional circumstances
Fill Holes
With multiple primary venue items (multi-beam problems) performance can be improved by setting Fill Holes =1 (instead
of 0). Then the narrow gaps in the target directivity are lled up at low frequencies where they can’t be implemented
anyway. In some cases this produces better results than asking for the impossible. The results are marginal, so no need
to spend too much time here.