NIGHTSHAPE

Build Log

• Real-time signal path built as in-process AudioUnits rather than stock effects. Stereo-linked peak-envelope compressor with hard-knee curve, attack and release ballistics, true bypass and truthful gain-reduction metering. Bit decimator, plate reverb, gate, chorus, five-band EQ, master safety limiter.
• Reorderable FX rack. Five serial inserts per track with drag ordering, reverb held as a fixed send and return outside the insert lane, per-track and master chain order persisted in the project snapshot.
• Drum synthesizer with a full parameter system, factory and user preset stores, nested browser, and preset import and export.
• Procedural groove generator. Assigns a musical role to each row, selects rhythmic archetypes, generates kick and snare first, then derives hats and percussion in response, with per-step MIDI velocity.
• Performance capture. Arm, count-in, live tap recording with real-time quantization, a prediction engine, and visual ripple feedback.
• Audio import pipeline that classifies drum hits out of source material — kick, snare, clap, tom, rim, closed and open hat — from decay time, spectral centroid, zero-crossing rate and low-band energy, with confidence scoring that penalizes near-ties and weak transients.
• Offline bounce on a dedicated manual-render graph isolated from the live engine, rendering an immutable project snapshot through production FX to PCM or AAC.
• Sample-accurate transport driving an 8-lane arrangement timeline. Paint-to-place blocks, edge-drag looping, step, beat and bar snap, zoom, isolated undo stack.
• Project package format bundling user presets so a project re-renders intact on another device.
• Audio session hardened against Bluetooth route changes. Device-only defect, never reproduces in simulator.
• XCTest coverage on transport timing, production-graph parity, FX signal path, limiter behavior and offline render output.