Fit in Range (vuo.math.fit)

Scales a value so that it’s always within the specified range.

This node keeps track of the minimum and maximum values it receives over time. Then it looks at the current value relative to its minimum and maximum, and scales it to be between Fitted Min and Fitted Max.

This node is useful if you have a data source with uncertain values (such as audio loudness) and you want to constrain it.

• Tracking — The sensitivity to outliers when updating the tracked range. This port controls how Min and Max change when the current Value is less than Min or greater than Max.
  • 1 — Min or Max changes to the current Value.
  • Between 1 and 0 — Min or Max changes to a number between its old amount and the current Value.
  • 0 — Min or Max don’t change. This is useful if Tracking has first been set to greater than 0, then given some time to calibrate before setting it to 0
• Reset — Changes Min and Max to the current Value.
• Fitted Value — The scaled Value. It always falls between Fitted Min and Fitted Max.
• Min and Max — The size of the tracked range. How closely this range matches the actual input values depends on Tracking.

Keywords: agc, automatic, bound, calibrate, clamp, compressor, control, convert, gain, limit, restrict, scale, train

Example compositions:

• Scale Audio Input: Graphs the current audio loudness (on the far right) relative to the range of loudnesses observed so far (moving from right to left). When the composition starts, the graph takes up the whole vertical range. As the composition runs, background noise fades into the lower part of the vertical range, and only the loudest sounds reach the top of the range.