index :: flt

flt.speaker~

speaker emulation band-pass filter

available since version: 0.9.7

---

information

Low-frequency speaker model = +12 dB/octave slope breaking to flat near @f1. Implemented using two dc blockers in series. High-frequency model = -24 dB/octave slope implemented using a fourth-order Butterworth lowpass.

arguments:

• F1 lower band frequency
  type: float
  units: Hz
  

• F2 high band frequency
  type: float
  units: Hz
  

methods:

• reset reset filter state
  

properties:

• @f1 Get/set lower band frequency
  type: float
  units: Hz
  range: 20..1000
  default: 130
  

• @f2 Get/set high band frequency
  type: float
  units: Hz
  range: 1000..20000
  default: 5000
  

• @gain Get/set filter gain
  type: float
  units: db
  range: -30..30
  default: 0
  

• @drywet Get/set proportion of mix between the original (dry) and 'effected' (wet) signals. 0 - dry signal, 1 - wet
  type: float
  range: 0..1
  default: 1
  

• @bypass Get/set bypass flag. If true: bypass 'effected' signal.
  type: bool
  default: 0
  

• @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_speaker/PROP_NAME osc address, if empty bind to /flt_speaker/PROP_NAME.
  type: symbol
  

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

inlets:

• input signal
  type: audio
• set @f1 property
  type: control
• set @f2 property
  type: control

outlets:

• filtered signal
  type: audio

keywords:

filter speaker bandpass bpf

See also: [flt.bpf24~]

Authors: Serge Poltavsky

License: GPL3 or later