Description:

Add an option for sliders/faders to use logarithmic (or otherwise audio-appropriate) scaling instead of linear scaling, so control resolution matches how humans perceive loudness and common audio parameter behavior.

Problem:

Many parameters in audio are not perceptually linear:

• Loudness is perceived roughly logarithmically; linear fader movement can feel “too sensitive” near the top and too coarse near the bottom (or vice versa, depending on mapping).

• Frequency, filter cutoff, and some FX parameters are typically best controlled on a log scale for usable resolution across the range.

• For performance, users need predictable fine control where it matters most (often around common operating ranges), not uniform numeric steps.

Without a log option, users may struggle to dial in precise values quickly, especially on small screens.

Proposed Solution:

1. Add a "Response Curve" option per slider/fader

• Options such as:

  • Linear (current behavior, default)

  • Logarithmic (audio)

  • Exponential (optional)

  • Custom curve (optional advanced feature)

2. Define curve behavior per parameter type (optional smart defaults)

• For volume/gain controls, provide a dB-oriented mapping that feels like a mixer fader.

• For frequency-like controls (if applicable), use log mapping across the frequency range.

• Keep the option explicit so users can choose what feels right.

3. Display and value mapping

• Ensure displayed values remain meaningful (e.g., dB for gain).

• Provide consistent min/max and scaling when bound to AU parameters, with optional calibration for each parameter’s range.

4. Compatibility and safety

• Existing projects keep linear unless changed.

• Curve changes affect only how the control maps movement to values, not the underlying parameter range.

Benefits:

• Much better control resolution for typical audio tasks.

• Faster, more confident adjustments during performance.

• More “mixer-like” feel for gain controls.

• Reduced accidental overshoots when touching faders quickly.

Examples:

• Volume fader:

  • Log/dB curve provides fine control around -12 to 0 dB where most mixing happens.

• Filter cutoff:

  • Log curve makes the low-mid region easier to control without cramming resolution at the top end.

This summary was automatically generated by GPT-5.2 Thinking on 2025-12-29.

Original Post:

When using the slider widget, Id like to have an option to set a non linear response-curve. Example when using it to control a low-pass filter or other fx id like a higher resolution where the sweet spot is.

Curve: Linear/logarithmic

Curve slope: XY