comb~
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.
Examples
Filter parameters may be supplied as float values or as signals
Arguments
max-delay [float]
Optional
Unitsms
The maximum delay time. Defaults to 10 ms if not specified.
initial-delay [float]
Optional
Unitsms
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
Messages
float
Arguments
filter-parameters
[float]
2nd inlet: delay time in milliseconds
3rd inlet: gain coefficient
4th inlet: feedforward coefficient
Right inlet: feedback coefficient
3rd inlet: gain coefficient
4th inlet: feedforward coefficient
Right inlet: feedback coefficient
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
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 |
|---|---|
| Sound Processing Techniques | Sound Processing Techniques |
| allpass~ | |
| delay~ | |
| reson~ | |
| teeth~ | |
| MSP Delay Tutorial 6: Comb Filter | MSP Delay Tutorial 6: Comb Filter |
| Audio Filtering | Audio Filtering |