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.
Ballast gives every part of a bassline one gain that brings it to the target
loudness, with no compression inside a part. Parts start at note starts,
detected from the audio or taken from MIDI, or on the host's beat grid, so a
patch change on the same note counts too.
- Loudness is K-weighted over each part's first 100 ms, in 10 ms blocks with
a relative gate, and every part is weighted from rest so the last part does
not ring into it.
- The audio path is delayed by the tracker's lookahead, the window and a
5 ms glide, so each gain is in place on its part's first sample.
- Learn takes the next part's loudness as the target. Amount, Range, Measure
from (leave the sub out), Gate, Output, Bypass.
- Editor shows the last 32 parts in and out, the target, and the spread of
the last 16 parts.
- Registered in the catalog, workflows, editor-check, README, chain and
development docs, and the website copy.
nvrl