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A control that jumps makes the output step: smooth control moves across the effects #117

Description

@bdbarnett

Found by the lifecycle matrix on 2026-09-28, on all eight Phase 5 classes, and true of the earlier classes by the same construction.

When a control jumps (a patch change, a MIDI value that leaps, a host that sets Mix from 0.3 to 1.0 in one call), the class hands the new value to its nodes at once and the output steps. On a noise burst at 16000 LSB peak, Mix to its top stepped the output by about 4900 against the material's own largest step of about 150. A player hears a click. A knob turned by hand sends many small moves and sounds smooth.

Brad ruled on 2026-09-28: disclose it now, smooth it later. Each Phase 5 class says so in one sentence. This issue is the later.

Wanted

  • A stated policy: which controls ramp, over how long, and where the ramp lives (the class, the base Component, or the node).
  • Mix first: it is the control most likely to be jumped and the loudest when it is.
  • The lifecycle matrix's step property (P5) then holds with no declared exceptions.

Not decided

Whether a ramp belongs in the nodes (audiodsp) so CircuitPython users of the bare nodes get it too. audioecho.FeedbackDelay already ramps its wow depth over 20 ms.

Activity

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