Changelog

All notable changes to 1Take will be documented here.

[1.3.0] - 2026-02-03

Recording analysis, intelligent auto-calibration, 5-band EQ, and performance optimizations.

Added

• Recording Analysis System
  • Automatic audio quality assessment after recording
  • Peak level, RMS level, Crest Factor, LUFS analysis
  • Dynamic Range evaluation
  • Recording quality report with recommendations
• Auto-Record Intelligent Calibration
  • Automatic threshold calculation based on ambient noise
  • Hysteresis control for stable triggering
  • One-tap setup via Auto button
  • Background noise measurement
• 5-Band Parametric EQ
  • Professional-grade 5-band parametric equalizer
  • Frequency, Gain, Q (bandwidth) control per band
  • Visual frequency response curve with draggable control points
• Sleep Prevention Setting
  • Optional “Keep Screen On” setting in Recording Settings
  • Prevents device sleep during long recording sessions
• Enhanced Microphone Recognition
  • Better USB-C and Lightning audio interface detection
  • Improved external mic identification

Changed

• Renamed “Analyze” button to “Auto” (Auto-Record calibration)
• Recording quality analysis now runs automatically after recording stops
• Marker system simplified: Removed manual Good/Bad/Memo markers (kept automatic CLIP/OVER markers)
• 4-Band EQ upgraded to 5-Band Parametric EQ

Fixed

• Fixed long-duration recording crashes
• Improved audio engine error handling and recovery
• Better resource cleanup on audio route changes
• Thread-safe audio processing with lock-free atomics

Performance

• Eliminated NSLock usage in real-time audio callback
• Introduced Swift Atomics for lock-free concurrency
• VU ballistics now computed in audio thread (zero latency)

[1.2.0] - 2026-01-24

Professional LUFS metering, enhanced Pro features, and Firebase integration.

Added

• LUFS Metering (ITU-R BS.1770-4)
  • Momentary (400ms), Short-term (3s), Integrated loudness
  • True Peak measurement with 4x oversampling
  • Tap meter to cycle: VU → GR → LUFS → VU
• Pro Features (In-App Purchase)
  • 24-bit WAV/BWF export for professional workflows
  • Custom audio presets with full parameter control
  • BWF (Broadcast Wave Format) with embedded metadata
• BWF Format Support
  • BEXT chunk with originator, description, time reference
  • Embedded cue markers for DAW compatibility

Fixed

• Audio route change recovery with retry logic
• USB-C microphone disconnect handling improved
• LUFS analyzer thread safety

[1.1.0] - 2026-01-22

Arm mode, Pre-roll, and Spectrum Analyzer.

Added

• Arm Mode - ARM button to enter waiting state with circular buffer
• Pre-roll Recording - 5 seconds of audio captured before record button
• Real-time Spectrum Analyzer - FFT-based with 32-band logarithmic scale
• GR (Gain Reduction) Meter - Tap VU meter to switch
• Input Source Badge - Display current input source
• In-App Help System - 10+ help topics with English/Japanese localization

Changed

• Spectrum tab removed from main navigation (now 2 tabs: Record, Recordings)
• Peak Reset changed to fixed 5-second interval

Fixed

• Stereo recording now works correctly
• Route change during recording: safe stop + file close

[1.0.0] - 2026-01-21

Initial release.

Added

• High-quality audio recording (WAV 16-bit PCM, 48kHz)
• Stereo recording on supported devices
• Professional signal chain: Noise Gate → EQ → Compressor → Limiter
• Four presets: Flat, Studio, Studio+, Live
• VU meter with peak hold and clip detection
• Smart Context Markers (GOOD, BAD, MEMO, CLIP)
• Clip Guard with haptic feedback
• Recording management with Share Sheet export
• English and Japanese localization

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