2.1.20. Learn target range

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The learn target range parameter allows you to enable or disable learning for target range.

While active, target range will be adjusted to follow the input loudness distribution rather than raw peaks. The learn algorithm uses LRA-style percentiles (10th/95th) from the input histogram and smooths updates using the current attack/release ballistics. This is useful for quickly setting the target range to a representative window of the input, then disabling learning to prevent the target range from changing.