SuperCollider CLASSES (extension)

FoaZoomX
ExtensionExtension

First Order Ambisonic (FOA) zoom transformer

Description

Apply zoom to a first order ambisonic signal (B-format) along the x-axis.

NOTE: FoaZoomX is usually called via the convenience wrapper FoaTransform.

Class Methods

*ar (in, angle: 0, mul: 1, add: 0)

From superclass: FoaRotate

Arguments:

in

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

angle

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

mul

Output will be multiplied by this value.

add

This value will be added to the output.

Discussion:

Zoom is a normailised dominance variant, specified in terms of a distortion angle. Positive values of angle increase gain at [0, 0], while reducing at [pi, 0]. Negative values do the inverse. The default, 0, results in no change.

 


Zoom imaging
NOTE: Corresponding matrix transformer: FoaXformerMatrix: *newZoomX

Inherited class methods

Instance Methods

Inherited instance methods

Examples

Please see various examples here.