FreqScope | SuperCollider 3.12.2 Help

Subclasses: FreqScopeWindow, PlusFreqScopeWindow

Description

FreqScope shows the frequency spectrum of the specified audio bus. The scope will remain active after a command-period. To turn it off you must either click off the 'Power' button or close the window.

Panel commands:

Power	Turns the scope on and off. This is useful for freezing the signal on the display or for saving CPU.
BusIn	The audio bus to be analyzed.
FrqScl	Determines the mapping of frequencies on the x-axis. Can be linear (lin) or logarithmic (log). Logarithmic is equal spacing per musical octave.
dbCut	Determines the lowest decibel shown on the y-axis.

Class Methods

FreqScope.new(width: 522, height: 300, busNum: 0, scopeColor, bgColor, server)

Arguments:

width	Default value is 512.
height	Default value is 300.
busNum	The number of the audio Bus to be monitored.
scopeColor	An instance of Color. The drawing color of the scope.
bgColor	An instance of Color. The background color of the scope.
server	the server whose buses to show on scope.

Discussion:

Example:s.boot; // create a new analyzer FreqScope.new(400, 200, 0, server: s); // basic sine { SinOsc.ar(2000, 0, 0.25) }.play(s); // random saw { RLPF.ar(Saw.ar(110, 0.2), LFNoise2.kr(1,1e4,1e4), LFNoise2.kr(1, 0.2, 0.22)) }.play(s); // modulate phase { SinOsc.ar(800, SinOsc.ar(XLine.kr(20, 8000, 10), 0, 2pi), 0.25) }.play(s); // all harmonics { Blip.ar(200, Line.kr(1, 100, 10), 0.2) }.play(s);