Ongenet
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Polyphonic pitch editing

Ongenet includes a built-in VariAudio-class pitch editor — no third-party Melodyne licence required. Each audio clip stores a list of PitchNoteSegment objects with start/end sample positions and per-note pitch offset in cents.

Opening the Pitch Editor

Right-click an audio clip on the timeline → Open Pitch Editor.

Workflow

  1. Analyze — runs polyphonic onset/pitch detection (seeded from the same pipeline as Convert to poly MIDI) and populates note segments on the waveform
  2. Edit — drag segment pitch (cents slider or vertical drag), adjust start/end edges, delete spurious segments, or add segments manually
  3. Listen — changes apply in real time during playback via per-segment pitch ratios with 256-sample crossfades at segment boundaries
  4. Flatten (optional) — bake pitch-corrected audio to a new clip via Render clip to new track

Fallback behaviour

  • When no segments cover a frame, playback falls back to the global AraPitchOffsetSemitones (monophonic ARA offset) if set
  • Monophonic clips can still use Open ARA Editor when an ARA-capable plugin is on the track

Persistence

Pitch segments are saved in the project file (format v7, append-only after linked-clip metadata). Clones sharing the same audio buffer share segment lists through the clip model.

Limitations vs Melodyne

  • Detection quality depends on source material — manual editing is the reliability backstop
  • No formant preservation slider (pitch shift uses the Rubber Band R2 engine path)
  • Optional ARA2 SDK integration (ENABLE_ARA) remains available for third-party ARA plugins but is not required for the built-in editor

Architecture

Piece Role
PitchNoteSegment Start/end sample, pitch cents, amplitude
Clip.PitchSegments Per-clip segment list (project format v7)
PolyphonicPitchAnalyzer Seeds segments from polyphonic detection
AudioClipPitch Real-time per-segment ratios + edge crossfades
PolyphonicPitchEditorWindow Analyze / edit UI with waveform overlays