Auditorium v1.38.0 — the bar, the gaps, the voice, the podcast

The edit line becomes the thing everything aims at — zoom and Play both — plus
gaps you can select and close, and two new Pipeline tools for the voice.

Changed

• Zoom anchors on the edit line, everywhere. Every zoom gesture on both
  surfaces — Ctrl+wheel and the toolbar's −/+, in the waveform, spectral
  and multitrack views — now keeps the edit line at its on-screen x, and centres
  the view on it when it is off screen. The pointer is no longer a zoom anchor
  anywhere: the four gestures used to disagree (the wheel anchored on the
  pointer, the buttons on the line), so the same zoom step landed somewhere
  different depending on which control you reached for. One pure helper computes
  the request for all four callers. Shift+wheel scroll and Fit are
  unchanged. Affects: src/services/zoomAnchor.ts (new),
  src/components/Editor/useEditorGestures.ts,
  src/components/Multitrack/useMultitrackZoom.ts,
  src/components/Layout/Toolbar.tsx.
• Play starts at the edit line, and Pause moves the line. In the waveform and
  spectral views Space now always begins at the line — the engine's hidden
  paused position is never consulted — and Pause writes the paused position back
  to the line, so Space·Space is still a resume and the only mark left on
  screen is the one playback will use. The one exception: with a selection whose
  span the line sits outside, Play starts at selection.start, because the
  region about to play is the selection. A ruler click DURING playback still
  does not re-seek (unchanged, deliberate) — pause first, then click. Stop is
  unchanged; the multitrack already started at its own cursor. Affects:
  src/services/transportService.ts.
• The multitrack bar, its handle and the playhead hide when they leave the
  lane instead of painting over the track headers or trailing off the right
  edge. Affects: src/components/Multitrack/MultitrackView.tsx.

Added

• Gaps are selectable and closable in the Multitrack view. Double-click the
  empty stretch on a track — between two of its clips, or between the start of
  the timeline and its first clip — and it is selected as a translucent band the
  full height of that lane. Del or Shift+Del then closes it: every clip on
  that track starting at or after the gap's end moves left by the gap's
  length, in one Close gap undo entry, and no other track moves. The band and
  the clip selection are mutually exclusive; Escape clears it, and so does a
  click on empty lane space outside it. No keyboard shortcut selects a gap, the
  open stretch after the last clip is not one, and neither is anywhere two clips
  overlap. Affects: src/multitrack/gaps.ts (new),
  src/multitrack/sessionStore.ts, src/components/Multitrack/TrackLane.tsx,
  src/services/menuActions.ts.
• Separate Voice (Pipeline → Voice). The same separation as Separate into
  Stems, landed as two tracks instead of five: <name> — Voice and
  <name> — Backing (drums + bass + everything else + residual). Same model,
  same download/progress/cancel, same landing shape. The two add back up to the
  source within float32 rounding — measured worst 4.32e-7, never claimed as
  bit-exact; the five-stem landing keeps that claim. It opens the Voice group.
  Affects: src/services/menuActions.ts, src/services/stemLanding.ts
  (landVoice), src/components/Dialogs/SeparateDialog.tsx (a mode prop).
• Podcast Chain (Pipeline → Voice, after Cover Chain). Ten speech-tuned
  stages in one pass and one undo entry: DC removal · noise reduction (only when
  the take has a quiet passage to learn a print from) · de-hum · shortened pauses
  (to 400 ms) · noise gate · compressor (3:1, threshold placed for ~6 dB of gain
  reduction on the loud passages) · de-esser · parametric EQ (80 Hz high-pass,
  −2 dB at 250 Hz, +2 dB at 3 kHz) · loudness to −16.0 LUFS stereo /
  −19.0 LUFS mono · limiter at −1.0 dBFS sample peak (not oversampled, so
  never a true-peak figure). Every stage is switchable and reports what it
  derived or the measurement that made it decline; the gate has no manual
  threshold here and its decline points at the Vocal Chain's. Documents with more
  than two channels are refused ("convert to stereo first") rather than
  mis-measured. Affects: src/services/podcastChain.ts (new),
  src/components/Dialogs/PodcastChainDialog.tsx (new),
  src/services/menuActions.ts.
• Integrated loudness measurement (ITU-R BS.1770-4). K-weighting derived for
  the document's own sample rate (not the 48 kHz coefficient table copied),
  400 ms blocks at 75 % overlap, absolute −70 LUFS then relative −10 LU gating,
  channel weights 1.0 — mono/stereo-accurate, null when every block gates out.
  Pinned against EBU Tech 3341 cases. Affects: src/dsp/loudness.ts (new).

Verify your download (see SHA256SUMS.txt):

CertUtil -hashfile "Auditorium Setup 1.38.0.exe" SHA256