comb~
Apply a comb filter effect
Description
Use the comb~ object to apply the classic comb filtering effect to an audio input. The comb~ object mixes the current input sample with earlier input and/or output samples, according to the formula:
yn = axn + bxn-(DR/1000) + cyn-(DR/1000)
where R is the sampling rate and D is a delay time in milliseconds.
Arguments
max-delay[float]ms
optional
The maximum delay time. Defaults to 10 ms if not specified.
initial-delay[float]ms
optional
Initial delay time
gain-coefficient[float]
optional
Gain coefficient
feedforward-coefficient[float]
optional
The feedforward coefficient
feedback-coefficient[float]
optional
The feedback coefficient
Attributes
Common Box Attributes
annotation[symbol]
Sets the text that will be displayed in the Clue window when the user moves the mouse over the object.
background[int]: 0
Adds or removes the object from the patcher's background layer.
adds the object to the background layer, removes it. Objects in the background layer are shown behind all objects in the default foreground layer.
color[4 floats]
Sets the color for the object box outline.
fontface[int]
Sets the type style used by the object. The options are:
plain
bold
italic
bold italic
Possible values:
0 = 'regular'
1 = 'bold'
2 = 'italic'
3 = 'bold italic'
fontname[symbol]
Sets the object's font.
fontsize[float]
Sets the object's font size (in points).
Possible values:
'8'
'9'
'10'
'11'
'12'
'13'
'14'
'16'
'18'
'20'
'24'
'30'
'36'
'48'
'64'
'72'
hint[symbol]
Sets the text that will be displayed in as a pop-up hint when the user moves the mouse over the object in a locked patcher.
ignoreclick[int]: 0
Toggles whether an object ignores mouse clicks in a locked patcher.
jspainterfile[symbol]
JS Painter File
patching_rect[4 floats]: 0. 0. 100. 0.
Sets the position and size of the object in the patcher window.
position[2 floats]
write-only
Sets the object's x and y position in both patching and presentation modes (if the object belongs to its patcher's presentation), leaving its size unchanged.
presentation[int]: 0
Sets whether an object belongs to the patcher's presentation.
presentation_rect[4 floats]: 0. 0. 0. 0.
Sets the x and y position and width and height of the object in the patcher's presentation, leaving its patching position unchanged.
rect[4 floats]
write-only
Sets the x and y position and width and height of the object in both patching and presentation modes (if the object belongs to its patcher's presentation).
size[2 floats]
write-only
Sets the object's width and height in both patching and presentation modes (if the object belongs to its patcher's presentation), leaving its position unchanged.
textcolor[4 floats]
Sets the color for the object's text in RGBA format.
textjustification[int]
Sets the justification for the object's text.
Possible values:
0 = 'left'
1 = 'center'
2 = 'right'
varname[symbol]
Sets the patcher's scripting name, which can be used to address the object by name in pattr, scripting messages to thispatcher, and the js object.
Messages
float
2nd inlet: delay time in milliseconds
3rd inlet: gain coefficient
4th inlet: feedforward coefficient
Right inlet: feedback coefficient
- filter-parameters
[float]
clear
Reset filter state to zero internal feedback
signal
Left inlet: signal to be filtered
2nd inlet: delay time in milliseconds
3rd inlet: gain coefficient
4th inlet: feedforward coefficient
Right inlet: feedback coefficient
Output
signal
The filtered signal.
See Also
Name | Description |
---|---|
allpass~ | Apply an allpass filter effect |
delay~ | Delay a signal |
reson~ | Resonant bandpass filter |
teeth~ | Comb filter with feedforward and feedback delay control |