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Effects - Stereo Imager

To the lesson

Version2024.12.11IDGGdz
Bitwig Version5.3TypeFX Grid

This multi-band stereo imager is designed to process audio by splitting the frequency spectrum into distinct bands (low, mid, and high) using Bitwig’s Crossover-3 device. Once divided, each band’s stereo width - the perceived spatial distance of panned sound sources - can be adjusted individually. After these adjustments, the bands are seamlessly recombined.

Crossover filters are specially designed to recombine without overlap or phase changes.

Key Features

Click to zoom

Click to zoom

  • Per band visualisation of stereo image change
  • Red: Narrowing
  • Turquoise: Widening
  • Mastering
    • Narrow stereo image in sub-bass range for enhanced acoustic impact and reduced phase interactions in a room
    • Widen stereo image in mid and high range for a more immersive experience
  • Individual tracks
    • Creative mixing and shaping stereo image
    • Similar to the Haas effect, widening the stereo image can lift a track above the mix, adding depth and clarity
    • Reduce extreme swings caused by automated or algorithmic panning

Controls

Controls

Low / Mid / High SoloSolo the indicated bands. Isolated listening of the selected bands
Low / Mid / HighAdjust stereo width in percent. 0% - 100% decrese stereo with, 100% - 200% increase stereo width
Global widthAdjust stereo width in percent after bands have been combined
Low FreqCrossover-frequency between low and mid band
High FreqCrossover-frequency between high and mid band

License

RH Stereo Imager Grid [GGdz] by Jean-Louis Fuchs is licensed under Creative Commons Attribution 4.0 International

Learn

Learn - Grid

Learn - Grid - Stereo Imager

To the patch

Apart from visualization, a Stereo Imager is extremely easy to design in Bitwig. In an FX Grid, first connect a Sum module to the Audio Out module, then add a Crossover-3 module to the Audio In module. Attach a Stereo Width module to each Band output of the Crossover-3 module. Finally, connect all the outputs of the Stereo Width modules to the Sum module. In no time at all, the Stereo Imager is built.

Mode of Operation

The property of the Crossover-3 module, which allows the split frequency bands to seamlessly recombine without losses or overlaps, makes it possible to adjust the perceived spatial width of each band individually without causing sound distortions. The sound is faithfully reproduced.