SuperCollider CLASSES

DecodeB2

2D Ambisonic B-format decoder.

Description

Decode a two dimensional ambisonic B-format signal to a set of speakers in a regular polygon. The outputs will be in clockwise order. The position of the first speaker is either center or left of center.

Class Methods

*ar (numChans, w, x, y, orientation: 0.5)

*kr (numChans, w, x, y, orientation: 0.5)

Arguments:

numChans

Number of output speakers. Typically 4 to 8.

w

The B-format signal.

x

The B-format signal.

y

The B-format signal.

orientation

Should be zero if the front is a vertex of the polygon. The first speaker will be directly in front. Should be 0.5 if the front bisects a side of the polygon. Then the first speaker will be the one left of center.

Returns:

An array of channels, one for each speaker.

Inherited class methods

Instance Methods

Inherited instance methods

Examples

(
{
    var w, x, y, p, a, b, c, d;

    p = PinkNoise.ar; // source

    // B-format encode
    #w, x, y = PanB2.ar(p, MouseX.kr(-1,1), 0.1);

    // B-format decode to quad
    #a, b, c, d = DecodeB2.ar(4, w, x, y);

    [a, b, d, c] // reorder to my speaker arrangement: Lf Rf Lr Rr
}.play;
)