Pocket

Four detector lanes listen to the sidechain in their own bands - kick, clap and snare, high percussion, and sustained energy - and each one asks for a share of the reduction. The lanes are level-independent by design, so the depth you get does not change when the drum bus gets louder.

Those requests are not simply added together. A weighted soft-knee allocator grants them against a single budget set by the Space macro, so simultaneous hits cannot accumulate into a hole. The budget is never exceeded, and the face draws its ceiling as a hard line because that is a product claim rather than an implementation detail.

Recovery is the part that makes it musical. Instead of a fixed millisecond release, the duck recovers over a note division shaped by feel - Tight snaps, Laid Back hangs, Open moves continuously - with MPC swing displacing alternate recoveries and an adaptation term that follows the detected spacing between kicks when the passage changes tempo feel.

The low end is handled separately. An LR2 crossover splits off a mono band below the crossover point and the broadband duck is applied there, which is what keeps a bass full and centred between kicks; above it, when Glue is high, the reduction is delivered through block-rate bells instead, so a pad's density survives what would otherwise be a hole.

The Groove Scope is a prediction, not a measurement, and it says so. It is computed from the same parameters the audio runs on, so it is correct the instant the page paints - and where no host supplies an output tap the caption states plainly that nothing on screen is measured, rather than drawing a convincing trace.