Producers found the tracked plugins jumpy: the shared tracker switched notes
after 10 ms and retuned every 5 ms, so growls and formant basses flickered
and every tracked plugin acted on wrong notes.
Shared tracker (common-dsp):
- A new note needs a steady read for 40 ms; an octave down 80 ms, an octave
up 200 ms (an octave-up read still fits the note's period and counts as
agreeing). Inside a note the tuning only moves past a 0.25 semitone
deadband. Follow bends keeps the old fast behaviour as an option.
- A trust score turns the note unsure while reads disagree; Tracker::active
and NoteState report it, and Fallback latches "step back" across note ends.
- Notes end when the window start stays below the gate's release level for
20 ms, so short gaps between notes are seen without waiting for the gate.
- PitchSource replaces the old (midi, gate, glide) arguments: Audio, MIDI or
Note mode (a set note, no detection), plus a key lock (minor, major, root
only) that snaps reads to the key.
- stems.rs: synthetic stems (growls, wobble, reese, formant, 808 slide,
layered drop, noise riser) and a score; examples/tracker_report scores the
corpus or real WAV stems. On the corpus the old behaviour makes up to 28
extra note starts per second; the stable default makes none.
Plugins:
- Anvil, Lathe, Temper, Knurl, Planish, Braze and Forge gain the NOTE pitch
source, the key lock and Follow bends (shared common-params crate and a
shared header switch in common-ui).
- Unsure tracking: Anvil brings the original sub back in place of the sine,
Lathe passes the audio through, Knurl fades its texture out; Temper,
Planish and Braze hold their last sure tuning. Readouts show the note only
when it is sure.
- Anvil gains Mode: Replace or Enhance (keeps the original sub and adds the
sine under it).
- Planish slides its band edges over 6 ms on a new note instead of snapping.
- Ballast defaults to Grid parts, which need no tracking.
Adds a detuned copy of the bass whose beating stays on the tempo grid on
every note. The chosen harmonic k beats once per Rate note value, and
harmonic n beats n/k times as fast, so every harmonic is on the grid.
- The copy is read from a delay line whose delay falls one period of the
tracked note per beat cycle (r = 1 + B/(k f0)) and jumps back exactly
one period, crossfaded over 6 ms. On a periodic note the jump has no
seam: the output matches the ideal sum within 0.003 on harmonics 1-4.
- The delay follows the host's beat position, shifted by the lookahead,
so beat peaks land on the grid; free-running when stopped.
- Low cut: LR4 high-pass on the copy, the bass split by the same
crossover, so the sub does not beat and keeps its level.
- Depth, Width, Phase, Gate, Output, Snap, Bypass. Pitch from audio
(about 67 ms lookahead) or MIDI.
- Editor: one bar of the beat per harmonic with the grid and a playhead.
- Catalog, workflows, editor-check, docs, signal chain and site copy.
nvrl