index :: flt

flt.lpf12~

Low-pass second order Butterworth filter

available since version: 0.1

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information

A low-pass filter is a filter that passes signals with a frequency lower than a certain cutoff frequency and attenuates signals with frequencies higher than the cutoff frequency. A low-pass filter is the complement of a high-pass filter. Butterworth filter is a type of filter designed to have a frequency response as flat as possible in the passband.

arguments:

• FREQ cutoff frequency
  type: float
  units: Hz
  

methods:

• reset reset filter state
  

properties:

• @freq Get/set cutoff frequency
  type: float
  units: Hz
  range: 20..20000
  default: 1000
  

• @active Get/set on/off dsp processing
  type: bool
  default: 1
  

• @osc (initonly) Get/set OSC server name to listen
  type: symbol
  

• @id (initonly) Get/set OSC address id. If specified, bind all properties to /ID/flt_lpf12/PROP_NAME osc address, if empty bind to /flt_lpf12/PROP_NAME.
  type: symbol
  

inlets:

• input signal
  type: audio
• set frequency
  type: control

outlets:

• filtered signal
  type: audio

keywords:

filter lowpass

See also: [flt.lpf24~] [flt.hpf12~] [flt.c_lpf~]

Authors: Alex Nadzharov, Serge Poltavsky

License: GPL3 or later