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-----------------------------------------------------------------------------------

    Copyright (C) 2003-2022 Fons Adriaensen
    
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

-----------------------------------------------------------------------------------


--------------------------------------------
Version 0.8.1 -- 28/06/2022
--------------------------------------------

Code refactored to same structure as other
plugin sets. License changed to GPL3.


--------------------------------------------
Version 0.7.2 -- 19/4/2014
--------------------------------------------

Cleanup and bug fixes.


--------------------------------------------
Version 0.7.1 -- 9/3/2014
--------------------------------------------

Removed g2reverb which is now in a separate
package for compatibility with older releases.


--------------------------------------------
Version 0.6.1 -- 28/8/2013
--------------------------------------------

Original release.

These are LADSPA versions of zita-rev1 in resp. stereo
and first order Ambisonic mode.

Note: some of the defaults may seem strange when used in
Ardour. The reason is that Ardour (3.3 at the time of writing)
doesn't handle defaults correctly for ports which have the
LOGARITHMIC hint set (the mouse wheel behaves strangely as
well on those).

Controls of the two zita-reverb plugins
---------------------------------------

Reverb controls:

* Delay    :  Initial delay, in seconds.
* Xover    :  Crossover frequency between RT-low and RT-mid.
* RT-low   :  Reverb time (RT60) at low frequencies.
* RT-mid   :  Reverb time (RT60) at medium frequencies.
* Damping  :  The frequency at which the reverb time
              becomes half the RT-mid value.

There are two parametric filters which act on the 'wet'
signal only:

* F1-freq  :  Center frequency of first filter.
* F1-gain  :  Gain of first filter.
* F2-freq  :  Center frequency of second filter.  
* F2-gain  :  Gain of second filter.

Bandwidth is constant, and somewhat higher than average.
Near the extreme frequency settings you get something very
close to a shelf filter.

Output controls:

* Output mix (Stereo version)  : Balance between dry sound and reverb.

* XYZ gain (Ambisonic version) : Relative gain of the first order
                                 outputs. The default is correct for SN3D.
                                 For 'FuMa' this should be set to +3 dB.

The Ambisonic version never outputs the dry sound, it must be
used as a send/return reverb, not as an insert.

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