Curve evaluation function that allows simultaneous evaluation of the min- and max-curves. The returned minValue and maxValue values are expected to be in the range [-1; 1] and a value of 0 corresponds to the vertical center of the rectangle that is drawn into. Values outside of this range will be clamped. Additionally the color of the curve at this point is evaluated.

public delegate void AudioCurveRendering.AudioMinMaxCurveAndColorEvaluator(float x, out Color col, out float minValue, out float maxValue)