lores~
Description
lores~ implements an inexpensive lowpass with an adjustment that lets you add a specified resonance. The middle inlet sets a kind of cutoff frequency, but the sharpness of the filter depends on the resonance passed in through the right inlet (0 is a little bit sharp and 1 as sharp as possible).
Examples
Arguments
cutoff [number]
A number sets the initial cutoff frequency. The default value is 0. If a signal is connected to the inlet, the argument corresponding to the inlet is ignored.
resonance [number]
A number sets the filter resonance. The default value is 0. If a signal is connected to the inlet, the argument corresponding to the inlet is ignored. A resonance of 0 is a little bit sharp and 1 is as sharp as possible.
Attributes
cutoff [float]
Sets the initial cutoff frequency.
resonance [float]
Sets the filter resonance. A resonance of 0 is a little bit sharp and 1 is as sharp as possible.
Common Box Attributes
Messages
int
Arguments
float
Arguments
clear
signal
In middle inlet: Sets the lowpass filter cutoff frequency.
In right inlet: Sets a "resonance factor" between 0 (minimum resonance) and 1 (maximum resonance). Values very close to 1 may produce clipping with certain types of input signals.
Output
signal
The filtered input signal. The equation of the filter is
yn = scale * xn - c1 * yn-1 + c2 * yn-2
where scale, c1, and c2 are parameters calculated from the cutoff frequency and resonance factor.
See Also
| Name | Description |
|---|---|
| Sound Processing Techniques | Sound Processing Techniques |
| biquad~ | |
| buffir~ | |
| comb~ | |
| cross~ | |
| onepole~ | |
| svf~ | |
| reson~ | |
| Audio Filtering | Audio Filtering |