Classes (extension)
| Libraries > Ambisonic Toolkit > UGens > FOA > Transformer | UGens > Multichannel > Ambisonics
FoaNFC : Foa : MultiOutUGen : UGen : AbstractFunction : Object
Extension
ExtensionFirst Order Ambisonic (FOA) near-field compensation filter
Source: ATK.sc
Description
Apply near-field compensation filtering to a First Order Ambisonic signal (B-format).
Class Methods
FoaNFC.ar(in, distance: 1, mul: 1, add: 0)
Arguments:
| in |
The B-format signal, an array: [w, x, y, z] |
| distance |
The distance, in meters. WARNING: Distance = 0 is an invalid value! |
| mul |
Output will be multiplied by this value. |
| add |
This value will be added to the output. |
Discussion:
FoaNFC facilitates the reduction or removal of the proximity effect from encoded signals. The proximity effect can be an important contributor to perceptions of nearness.
Near-field compensation1 is usually used in conjunction with FoaDecode to compensate for the distance of loudspeakers on playback. Additionally, FoaNFC can also be used to reduce the proximity effect found in near-field recordings.
The Ambisonic Toolkit's proximity filter, FoaProximity, undoes FoaNFC given the same distance argument.
Inherited class methods
Instance Methods
Inherited instance methods
Examples
[1] - Usually called distance compensation in the classic Ambisonics literature.
helpfile source: /Library/Application Support/SuperCollider/downloaded-quarks/atk-sc3/HelpSource/Classes/FoaNFC.schelp
link::Classes/FoaNFC::
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