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|				 |
|   http:\\www.BruceWiggins.co.uk|                           
|   Wigware Ambisonic Decoders	 |
|      Version 0.91		 |
|	   31-17-2012		 |
|				 |
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0. You use this software at your own risk, I cannot
   and willnot be held responsible for any adverse effects
   this software causes.....IT IS STILL IN THE BETA STAGE
   OF DEVELOPMENT (not that is should do, however ;-)
1. Unzip the dll file into your VST plugin directory
   (normally c:\program files\steinberg\vstplugins)
2. For PERSONAL AND EDUCATIONAL USE ONLY.
3. If you wish to use this software for research and/or
   commercial activities, contact me b.j.wiggins@derby.ac.uk

The pattern parameters control the polar patterns fed to 
the speaker feeds, with a value of 0.0 representing 
omni-directional, 1.00 representing cardioid and 2.00 
representing a figure of 8 response (for the 1st order 
example).

If the Use Spatial EQ is set to YES, then both high and 
low patterns can be changed with the transistion frequency 
set by the Cut off F parameter. If Use Spatial EQ is set to 
NO then only the Low F pattern control is used and this 
affects the polar pattern for the entire frequency range. 
This has been included as the Spatial EQ code does create 
a small (around 10 degrees) phase mis-match at the 
transistion frequency that may want to be avoided! 
Supported speaker layouts are quad, ITU 
five speaker (separate plugin, multiple decoders), 
hexagon1 (speaker at 0 degrees), hexagon2 
(with no speaker at 0 degrees), octagon1, octagon2 and an 
8 speaker cube (1st order only).

I've added distance and near-field compensation sliders. 
i.e. enter the distance the mic was calibrated at 
(for a Soundfield it's around 2m, I think), and then enter 
the distance at which your speakers are.  This should give 
you the correct distance compensation filters - a first 
for an Ambisonic decoder as far as I'm aware.

Any questions, visit the website and ask away!