Orinj Band pass filter

Orinj version 4.0.0

The Orinj Band Pass Filter passes a band of frequencies unchanged, while stopping the frequencies below that band and the frequencies above that band. See Band pass filter for more information on this type of effect.

Using the Orinj Band Pass Filter

The Orinj Band Pass Filter can be added to tracks in the multitrack session view, tracks in the loop building view, and to waves in the single wave view. In the multitrack session view and in the loop building view, first select the track to which you want to add the effect. In all these views, click on Effect, Filtering, and then on Orinj Band Pass Filter in the Orinj menu. You will see the following dialog.

The Orinj Band Pass Filter dialog

When this dialog becomes visible, the Orinj Band Pass Filter effect has been added. Adjust the parameters of the band pass filter in the dialog above and click Close. The parameters are described below.

Orinj Band Pass Filter parameters

See Orinj Effects for an explanation of the Title, Track, Presets, and Bypass controls. The remaining Orinj Band Pass Filter controls are described below:

  • Order: Use this drop-down box to set the order of the filter. This is a Butterworth band pass filter. At larger orders, the filter becomes more precise and its magnitude response transitions faster from the bands in which frequencies are stopped to the band in which frequencies are preserved (the slopes in the graph will become steeper and the transition frequency bands narrower).
  • Frequency: Use these controls – the box and the slider – to set the middle frequency of the pass band of the filter. The pass band is the set of frequencies that are passed by the filter. The frequency is measured in Hz and can be between 20 Hz and 22 kHz.
  • Width: Use these controls – the box and the slider – to set the width of the pass band of the filter. The width is measured in Hz and can be between 20 Hz and 22 kHz.
  • Q factor: The quality factor of the filter is the ratio of the midpoint frequency of the pass band (the frequency parameter) to the width of the pass band (the width parameter) (see Equalizer for more information). This factor is larger for larger frequencies or smaller widths.
  • Filter graph: This graph shows the actual equalization that occurs in the filter.

See Orinj Effects for additional notes on: where Orinj effects can be used, using boxes and sliders that impact the same parameter (such as the box and slider for the frequency), applying effects to mono and stereo waves, and using effects during playback. See Orinj Working with effects for additional information on creating, modifying, moving, removing, and processing effects. See Band pass filter for additional information on band pass filters in audio processing.

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