52 lines
1.7 KiB
Text
52 lines
1.7 KiB
Text
class:: BHiShelf
|
|
summary:: Hi Shelf
|
|
categories:: UGens>Filters>BEQSuite
|
|
related:: Classes/SOS, Classes/BLowPass, Classes/BLowPass4, Classes/BHiPass, Classes/BHiPass4, Classes/BPeakEQ, Classes/BLowShelf, Classes/BBandPass, Classes/BBandStop, Classes/BAllPass
|
|
|
|
description::
|
|
The B equalization suite is based on the Second Order Section (link::Classes/SOS::) biquad UGen.
|
|
|
|
note::
|
|
Biquad coefficient calculations imply certain amount of CPU overhead. These plugin UGens contain optimizations such that the coefficients get updated only when there has been a change to one of the filter's parameters. This can cause spikes in CPU performance and should be considered when using several of these units.
|
|
::
|
|
|
|
classmethods::
|
|
|
|
method:: ar
|
|
argument:: in
|
|
input signal to be processed.
|
|
argument:: freq
|
|
WARNING: due to the nature of its implementation frequency values close to 0 may cause glitches and/or extremely loud audio artifacts!
|
|
center frequency.
|
|
argument:: rs
|
|
the reciprocal of S. Shell boost/cut slope. When S = 1, the shelf slope is as steep as it can be and remain monotonically increasing or decreasing gain with frequency. The shelf slope, in dB/octave, remains proportional to S for all other values for a fixed code::freq/SampleRate.ir:: and code::db::.
|
|
argument:: db
|
|
gain. boost/cut the center frequency in dBs.
|
|
argument:: mul
|
|
argument:: add
|
|
|
|
examples::
|
|
code::
|
|
s.boot;
|
|
(
|
|
z = { // toy around with boost/cut
|
|
BHiShelf.ar(
|
|
SoundIn.ar([0,1]),
|
|
MouseX.kr(2200, 18000, \exponential),
|
|
1.0, // rs
|
|
MouseY.kr(18.0, -18.0, \linear),
|
|
0.5); // mul
|
|
}.play)
|
|
z.release;
|
|
|
|
(
|
|
z = { // toy around with rs
|
|
BHiShelf.ar(
|
|
SoundIn.ar([0,1]),
|
|
MouseX.kr(2200, 18000, \exponential),
|
|
MouseY.kr(0.1, 1.0, \linear), // rs
|
|
6, // db
|
|
0.5); // mul
|
|
}.play)
|
|
z.release;
|
|
::
|