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Level Scaler

Bitwig Platform

Level Scaler module panel in Bitwig Grid
Level Scaler in Bitwig Grid 6.0.6.

A unipolar mapper whose two endpoints are specified in decibels and emitted as a linear level signal.

What it does

Level Scaler turns an input from 0 to 1 into a continuously changing gain between Low and High decibel endpoints. It is useful for translating a linear envelope, LFO, macro, or probability-like signal into a perceptually meaningful level range.

Controls and ports

Control Label Official description
low Low Level output when '0' is received at input
high High Level output when '1' is received at input
graphic Graphic Interface Alternate, logarithmic display for adjusting the levels and visualizing the current output

Practical uses

  • Convert an envelope into a controlled gain range such as -30 dB to 0 dB before multiplying audio.
  • Map one macro or slow control signal onto a musically useful loudness interval.
  • Create level laws that remain readable in decibels while the rest of the patch uses linear signals.

Things to know

  • The module produces a level coefficient; it does not directly contain a second audio input to scale.
  • Interpolation is expected in decibel space, followed by conversion to linear amplitude, so the output is curved when viewed numerically.
  • Inputs outside 0 to 1 may clamp or extrapolate; the metadata only establishes the nominal unipolar range.
  • Graphic changes editing and visualization, not necessarily the underlying DSP.

Technical details

No Nitro implementation has been confirmed for this visible module. The behavior is described conservatively from module metadata and editorial research.

The conventional model is dB(x)=low+(high-low)*x, followed by out=10^(dB(x)/20). This satisfies the documented endpoint levels and produces a logarithmic-looking linear signal. No exact Nitro body has been identified, so interpolation domain, endpoint clamping, negative infinity, and the Graphic mode's influence remain live-test questions.

Open questions

  • Measure endpoints and midpoint for several Low/High pairs to prove decibel-space interpolation and conversion.
  • Test reversed endpoints, equal endpoints, negative infinity, inputs below 0 or above 1, and modulation smoothing.
  • Verify Graphic mode, stereo behavior, precision, and voice scope.

Version and sources

Checked against Bitwig Studio 6.0.6. This page combines Bitwig's module metadata, the existing Grid course and guides, and Nitro analysis where the mapping is strong enough to support a technical statement.

Return to Bitwig Grid Modules or the Grid Modules course lesson.

Also matches: Bitwig Level Scaler module, Bitwig Grid Level Scaler, Level Scaler Grid module