Description
The teeth~ object implements a comb filter, in which a slightly delayed version of a signal is added to itself, causing phase cancellations and a spectrum that looks like a comb.
Examples
Discussion
The teeth~ object is a variation of the comb~ object and implements a similar filter formula:
y[n] = a * x[n] + b * x[n - FFdelay] + c * y[n - FBdelay]
Arguments
feedforward-delay [float]
Sets the initial value for the feedforward delay, in milliseconds. If a signal is connected to this inlet, the coefficient supplied as an argument for that inlet is ignored. If no argument is present, the delay time defaults to 10 milliseconds.
feedback-delay [float]
Sets the initial value for the feedback delay, in milliseconds. If a signal is connected to this inlet, the coefficient supplied as an argument for that inlet is ignored. If no argument is present, the delay time defaults to 10 milliseconds.
gain [float]
Sets the initial value for the gain. If a signal is connected to this inlet, the coefficient supplied as an argument for that inlet is ignored. If no argument is present, the value defaults to 0.
feedforward-gain [float]
Sets the initial value for the feedforward gain. If a signal is connected to this inlet, the coefficient supplied as an argument for that inlet is ignored. If no argument is present, the value defaults to 0.
feedback-gain [float]
Sets the initial value for the feedback gain. If a signal is connected to this inlet, the coefficient supplied as an argument for that inlet is ignored. If no argument is present, the value defaults to 0.
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] (default: 0)
Adds or removes the object from the patcher's background layer. background 1 adds the object to the background layer, background 0 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'
hidden [int] (default: 0)
Toggles whether an object is hidden when the patcher is locked.
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] (default: 0)
Toggles whether an object ignores mouse clicks in a locked patcher.
patching_rect [4 floats] (default: 0. 0. 100. 0.)
Sets the position and size of the object in the patcher window.
position [2 floats]
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] (default: 0)
Sets whether an object belongs to the patcher's presentation.
presentation_rect [4 floats] (default: 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]
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]
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 [float]
Sets the color for the object's text in RGBA format.
textjustification [int]
Text Justification
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
int
Arguments
float
Arguments
clear
signal
In 2nd inlet: Feedforward - the delay, in milliseconds, before past samples of the input are added to the current input.
In 3rd inlet: Feedback - the delay, in milliseconds, before past samples of the output are added to the current input.
In 4th inlet: Gain coefficient - for scaling the amount of the input sample to be sent to the output.
In 5th inlet: Gain coefficient - for scaling the amount of feedforward to be sent to the output.
In right inlet: Gain coefficient - for scaling the amount of feedback to be sent to the output.
list
Arguments
feedback-delay [float]
gain [float]
feedforward-gain [float]
feedback-gain [float]
Output
signal
The filtered signal.
See Also
| Name | Description |
|---|---|
| Sound Processing Techniques | Sound Processing Techniques |
| allpass~ | Apply an allpass filter effect |
| comb~ | Apply a comb filter effect |
| delay~ | Delay a signal |
| reson~ | Resonant bandpass filter |
| Audio Filtering | Audio Filtering |