Encoding quality modifier based on arousal level. Returns a multiplier in [0.3, 1.0], peaking at arousal = 0.5 (moderate).
f(a) = 1 - 4 * (a - 0.5)^2
Arousal normalised to 0..1 range.
Encoding quality modifier based on arousal level. Returns a multiplier in [0.3, 1.0], peaking at arousal = 0.5 (moderate).
f(a) = 1 - 4 * (a - 0.5)^2