HoaEncodeMatrix : HoaRenderMatrix : HoaUGen : Object

Extension

Description

Encode an Array input of channels to a Higher Order Ambisonic signal (HOA) via an HoaMatrixEncoder.

Class Methods

HoaEncodeMatrix.ar(in, hoaMatrix)

Inherited class methods

Instance Methods

Inherited instance methods

Examples

Monophonic to HOA

This example is equivalent to encoding via HoaEncodeDirection, where radius = AtkHoa.refRadius.// simple test... // boot rt server s.boot; // choose Ambisonic order ~order = 1 ~order = 2 ~order = 3 // choose an outbus, if need be ~outbus = 0 // open scope s.scope(~order.asHoaOrder.size, ~outbus); // design encoding matrix ~theta = 0.0; ~phi = 0.0; ~matrixEncoder = HoaMatrixEncoder.newDirection(~theta, ~phi, order: ~order); // audition ( { // saw params var freq = 110.0; var gain = -12; var sig; sig = Saw.ar(freq, gain.dbamp); HoaEncodeMatrix.ar(sig, ~matrixEncoder); }.play(outbus: ~outbus) ) // quit rt server s.quit

Axial encoding

Nothing fancy, just place six sinusoids on the axes.// simple test... // boot rt server s.boot; // choose Ambisonic order ~order = 1 ~order = 2 ~order = 3 // choose an outbus, if need be ~outbus = 0 // open scope s.scope(~order.asHoaOrder.size, ~outbus); // design encoding matrix ~directions = [ [0.0, 0.0], [90.0, 0.0], [180.0, 0.0], [-90.0, 0.0], [0.0, 90.0], [0.0, -90.0], ].degrad; ~matrixEncoder = HoaMatrixEncoder.newDirections(~directions, order: ~order); // freqs ~freqs = Array.series(~directions.size, 110.0, 110.0); ~amps = Array.series(~directions.size, 1, 1).reciprocal; // audition ( { var gain = -18; var sig; sig = SinOsc.ar(~freqs, mul: gain.dbamp * ~amps); HoaEncodeMatrix.ar(sig, ~matrixEncoder); }.play(outbus: ~outbus) ) // quit rt server s.quit