Sebastian Krüger a157172e3d fix: resolve playback level monitoring closure issue
Fixed playback level meters staying at 0% by resolving React closure
issue in the monitoring loop - same pattern as the recording fix.

The Problem:
- monitorPlaybackLevels callback checked stale `isPlaying` state
- Animation loop would run once and never continue
- Dependency on isPlaying caused callback recreation on every state change

The Solution:
- Added isMonitoringLevelsRef to track state independent of React
- Removed isPlaying dependency from callback (now has empty deps [])
- Set ref to true when starting playback
- Set ref to false when pausing, stopping, or ending playback
- Animation loop checks ref instead of stale closure state

Monitoring State Management:
- Start: play() sets isMonitoringLevelsRef.current = true
- Stop: pause(), stop(), onended, and cleanup set it to false
- Loop: continues while ref is true, stops when false

This ensures the requestAnimationFrame loop runs continuously
during playback and calculates real-time RMS levels for all tracks.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-18 15:12:42 +01:00

Audio UI

A sophisticated browser-only audio editor built with Next.js 16, React 19, and Tailwind CSS 4.

Features (Planned)

  • 100% Client-Side: All audio processing happens in your browser
  • Multi-Track Editing: Professional multi-track audio editing
  • Advanced Effects: EQ, compression, reverb, delay, and more
  • Automation: Automate volume, pan, and effect parameters
  • Recording: Record audio directly from your microphone
  • Analysis Tools: Frequency analyzer, spectrogram, and loudness metering
  • Export Formats: WAV, MP3, OGG, FLAC
  • Project Management: Save and load complete projects
  • Privacy-First: No uploads, all data stays local in your browser

Tech Stack

  • Next.js 16 with React 19
  • TypeScript 5
  • Tailwind CSS 4 with OKLCH colors
  • Web Audio API for audio processing
  • Canvas API for waveform visualization
  • IndexedDB for project storage

Getting Started

This project is currently in the planning phase. See PLAN.md for the complete implementation plan.

Development (Coming Soon)

# Install dependencies
pnpm install

# Run development server
pnpm dev

# Build for production
pnpm build

Inspiration

Inspired by AudioMass and professional DAWs like Ableton Live, Logic Pro, and FL Studio.

License

TBD

Contributing

This is a personal project, but suggestions and ideas are welcome!

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