CLASS:: FoaPressZ
summary:: First Order Ambisonic (FOA) press transformer
categories:: Libraries>Ambisonic Toolkit>FOA>Transforming>UGens, UGens>Multichannel>Ambisonics, UGens>Multichannel>Panners
related:: Classes/FoaPressX, Classes/FoaPressY, Classes/FoaPress, Classes/FoaTransform, Classes/FoaXform

DESCRIPTION::
Apply press to a first order ambisonic signal (B-format) along the z-axis.


NOTE::
link::Classes/FoaPressZ:: is usually called via the convenience wrapper link::Classes/FoaTransform::.
::



CLASSMETHODS::

METHOD:: ar

argument:: in
The B-format signal, an array: [w, x, y, z]

argument:: angle
The distortion angle, in radians. -pi/2 to pi/2

argument:: mul
Output will be multiplied by this value.

argument:: add
This value will be added to the output.

discussion:: Press is a dominance related transform, specified in terms of a distortion angle. Positive values of strong::angle:: press the image towards code:: [0, pi/2] ::. Negative values press towards code:: [0, -pi/2] ::. The default, 0, results in no change.


note:: Corresponding matrix transformer: link::Classes/FoaXformerMatrix#*newPressZ:: ::


EXAMPLES::

Please see various examples link::Classes/FoaTransform#examples#here::.