HoaBLT:

Filter:
Classes (extension)
| Libraries > Ambisonic Toolkit > UGens > Internals > HOA | UGens > Multichannel > Ambisonics

Extension

Higher Order Ambisonic (HOA) Bilinear Transform UGen Superclass

Source: HoaUGen.sc

Utilities supporting Higher Order Ambisonic (HOA) Bilinear Transform UGens.

NOTE: This class is designated for planned deprecation upon further optimization of related subclasses. In most cases users will not directly use this filter.

Bilinear transform along an arbitrary axis & radius.

in |
The input signal. |

alpha |
Distortion coefficient. |

theta |
Azimuth, in radians. |

phi |
Elevation, in radians. |

weightFunc |
Angular weighting function. (Supplied by subclasses.) |

radius |
Radius, in meters. |

n |
Validated Ambisonic order. |

The input signal, bilinear transform at theta, phi & radius.

Bilinear transform at zenith & reference radius.

in |
The input signal. |

alpha |
Distortion coefficient. |

weightFunc |
Angular weighting function. (Supplied by subclasses.) |

n |
Validated Ambisonic order. |

The input signal, bilinear transform at zenith & reference radius.

Look at incidence & radius.

in |
The input signal. |

theta |
Azimuth, in radians. |

toPhi |
To elevation, in radians. |

radius |
Radius, in meters. |

n |
Validated Ambisonic order. |

The input signal, where look incidence & radius is translated to zenith & reference radius.

Unlook at incidence & radius.

in |
The input signal. |

theta |
Azimuth, in radians. |

toPhi |
To elevation, in radians. |

radius |
Radius, in meters. |

n |
Validated Ambisonic order. |

The input signal, where zenith & reference radius is translated to look incidence & radius.

The angular domain projection technique illustrated by Zotter, et al, ^{1} ^{2} is the algorithm implemented here, and is an extension of the analytic First Order Ambisonic (FOA) dominance effect first discussed by Gerzon & Barton.^{3}

[1] - H. Pomberger & F. Zotter (2011). "Warping of 3D Ambisonic Recordings", in 3rd International Symposium on Ambisonics and Spherical Acoustics, Lexington, KY, USA.

[2] - M. Kronlachner & F. Zotter (2014) "Spatial transformations for the enhancement of Ambisonic recordings, in 2nd International Conference on Spatial Audio, Erlangen, Germany.

helpfile source: /Library/Application Support/SuperCollider/downloaded-quarks/atk-sc3/HelpSource/Classes/HoaBLT.schelp

link::Classes/HoaBLT::

link::Classes/HoaBLT::