What is SplineEQ?
SplineEQ is a linear-phase equalizer available as VST and AU plugins for both Windows and macOS. Unlike traditional EQs that rely on preset filter types (like bell, shelf, or notch filters), SplineEQ lets you design custom filter shapes by drawing Bézier spline curves directly. This SplineEQ review will reveal all.
- You create filters by drawing spline curves rather than selecting filter types.
- The plugin displays both your ideal spline curve and the actual filter’s frequency response (shown as a dashed line when they differ).
- A color-coded frequency analyzer shows intensity of frequencies before and after processing.
- Up to 60 highly adjustable bands.
- Adjustable filter resolution (down to approximately 22 Hz).
- Variable processing latency to balance CPU usage and real-time performance.
- Linear-phase processing (which preserves phase relationships across frequencies).