Removed the master effects section from AudioEditor footer:
- Simplified footer to only show transport controls
- Removed master channel strip area
- Removed border separator between sections
Added note to PLAN.md:
- 🔲 Master channel effects (TODO)
- Will implement master effect chain UI later
- Similar to per-track effects but for final mix
- Documented in Phase 7 multi-track features section
This cleans up the UI for now - we'll add master effects
with a proper device rack UI later, similar to how per-track
effects work (collapsible section with horizontal device cards).
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Major UX refactor to match professional DAW workflows (Ableton/Bitwig):
**Layout Changes:**
- Removed sidebar completely
- Track actions moved to header toolbar (Add/Import/Clear All)
- Each track now shows its own devices/effects in the track strip
- Master section moved to bottom footer area
- Full-width waveform display
**Track Strip (left panel):**
- Track name (editable inline)
- Color indicator
- Collapse/Solo/Mute/Delete buttons
- Volume slider with percentage
- Pan slider with L/C/R indicator
- Collapsible "Devices" section showing track effects
- Shows effect count in header
- Each effect card shows: name, enable/disable toggle, remove button
- Effects are colored based on enabled/disabled state
- Click to expand/collapse devices section
**Master Section (bottom):**
- Transport controls (Play/Pause/Stop) with timeline
- Master volume control
- Master effects placeholder (to be implemented)
**Benefits:**
- True DAW experience like Ableton Live
- Each track is self-contained with its own effect chain
- No context switching between tabs
- Effects are always visible for each track
- More screen space for waveforms
- Professional mixer-style layout
Note: Effects are visible but not yet applied to audio - that's next!
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Architecture:
- Each track now has its own effect chain stored in track.effectChain
- Separate master effect chain for the final mix output
- SidePanel has 3 tabs: Tracks, Track FX, Master FX
Changes:
- types/track.ts: Add effectChain field to Track interface
- lib/audio/track-utils.ts: Initialize effect chain when creating tracks
- lib/hooks/useMultiTrack.ts: Exclude effectChain from localStorage, recreate on load
- components/editor/AudioEditor.tsx:
- Add master effect chain state using useEffectChain hook
- Add handlers for per-track effect chain manipulation
- Pass both track and master effect chains to SidePanel
- components/layout/SidePanel.tsx:
- Update to 3-tab interface (Tracks | Track FX | Master FX)
- Track FX tab shows effects for currently selected track
- Master FX tab shows master bus effects with preset management
- Different icons for track vs master effects tabs
Note: Effect processing in Web Audio API not yet implemented.
This commit sets up the data structures and UI.
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- Add masterVolume state to AudioEditor (default 0.8)
- Pass masterVolume to useMultiTrackPlayer hook
- Create master gain node in audio graph
- Connect all tracks through master gain before destination
- Update master gain in real-time when volume changes
- Wire up PlaybackControls volume slider and mute button
- Clean up master gain node on unmount
Fixes global volume and mute controls not working in transport controls.
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Updated spacebar handler to skip when focus is on:
- Input fields
- Textareas
- Buttons (HTMLButtonElement)
- Elements with role="button"
This prevents spacebar from triggering play/pause when clicking
playback control buttons or other UI controls.
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Changes:
- Transport controls now centered in footer with flexbox justify-center
- Added spacebar keyboard shortcut for play/pause toggle
- Spacebar only works when not typing in input/textarea fields
- Prevents default spacebar behavior (page scroll) when playing/pausing
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Major refactor to simplify the editor and focus exclusively on multi-track editing:
**AudioEditor Changes:**
- Removed single-file waveform view and useAudioPlayer
- Removed all single-file editing operations (cut, copy, paste, trim)
- Simplified to multi-track only with track selection support
- Added selectedTrackId state for track-specific effect chain
- Reduced from ~1500 lines to ~290 lines
**SidePanel Changes:**
- Complete rewrite with 2 tabs: Tracks and Effect Chain
- Tracks tab shows all tracks with inline controls (volume, pan, solo, mute)
- Click tracks to select/deselect
- Effect Chain tab shows effects for selected track
- Removed old file/history/info/effects tabs
- Sidebar now wider (320px) to accommodate inline track controls
**TrackList/Track Changes:**
- Added track selection support (isSelected/onSelect props)
- Visual feedback with ring border when track is selected
- Click anywhere on track to select it
**Workflow:**
1. Import or add audio tracks
2. Select a track in the sidebar or main view
3. Apply effects to selected track via Effect Chain tab
4. Adjust track controls (volume, pan, solo, mute) in Tracks tab
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Added comprehensive multi-track support to the main application:
- Added "Tracks" tab to SidePanel with track management controls
- Integrated useMultiTrack and useMultiTrackPlayer hooks into AudioEditor
- Added view mode switching between waveform and tracks views
- Implemented "Convert to Track" to convert current audio buffer to track
- Added TrackList view with multi-track playback controls
- Wired up ImportTrackDialog for importing multiple audio files
Users can now:
- Click "Tracks" tab in side panel to access multi-track mode
- Convert current audio to a track
- Import multiple audio files as tracks
- View and manage tracks in dedicated TrackList view
- Play multiple tracks simultaneously with individual controls
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Effect Chain System:
- Create comprehensive effect chain types and state management
- Implement EffectRack component with drag-and-drop reordering
- Add enable/disable toggle for individual effects
- Build PresetManager for save/load/import/export functionality
- Create useEffectChain hook with localStorage persistence
UI Integration:
- Add Chain tab to SidePanel with effect rack
- Integrate preset manager dialog
- Add chain management controls (clear, presets)
- Update SidePanel with chain props and handlers
Features:
- Drag-and-drop effect reordering with visual feedback
- Effect bypass/enable toggle with power icons
- Save effect chains as presets with descriptions
- Import/export presets as JSON files
- localStorage persistence for chains and presets
- Visual status indicators for enabled/disabled effects
- Preset timestamp and effect count display
Components Created:
- /lib/audio/effects/chain.ts - Effect chain types and utilities
- /components/effects/EffectRack.tsx - Visual effect chain component
- /components/effects/PresetManager.tsx - Preset management dialog
- /lib/hooks/useEffectChain.ts - Effect chain state hook
Updated PLAN.md:
- Mark Phase 6.6 as complete
- Update current status to Phase 6.6 Complete
- Add effect chain features to working features list
- Update Next Steps to show Phase 6 complete
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- Convert if/else chains to proper type narrowing patterns
- Use type assertions to avoid discriminated union issues
- Simplify EffectPreset and DEFAULT_PARAMS types using any
- Fix TypeScript strict mode compilation errors
- Reorder handler logic to avoid type narrowing conflicts
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Phase 6.5 Advanced Effects:
- Add Pitch Shifter with semitones and cents adjustment
- Add Time Stretch with pitch preservation using overlap-add
- Add Distortion with soft/hard/tube types and tone control
- Add Bitcrusher with bit depth and sample rate reduction
- Add AdvancedParameterDialog with real-time waveform visualization
- Add 4 professional presets per effect type
Improvements:
- Fix undefined parameter errors by adding nullish coalescing operators
- Add global custom scrollbar styling with color-mix transparency
- Add custom-scrollbar utility class for side panel
- Improve theme-aware scrollbar appearance in light/dark modes
- Fix parameter initialization when switching effect types
Integration:
- All advanced effects support undo/redo via EffectCommand
- Effects accessible via command palette and side panel
- Selection-based processing support
- Toast notifications for all effects
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Added comprehensive undo/redo functionality:
- Command pattern interface and base classes
- HistoryManager with 50-operation stack
- EditCommand for all edit operations (cut, delete, paste, trim)
- Full keyboard shortcuts (Ctrl+Z undo, Ctrl+Y/Ctrl+Shift+Z redo)
- HistoryControls UI component with visual feedback
- Integrated history system with all edit operations
- Toast notifications for undo/redo actions
- History state tracking and display
New files:
- lib/history/command.ts - Command interface and BaseCommand
- lib/history/history-manager.ts - HistoryManager class
- lib/history/commands/edit-command.ts - EditCommand and factory functions
- lib/hooks/useHistory.ts - React hook for history management
- components/editor/HistoryControls.tsx - History UI component
Modified files:
- components/editor/AudioEditor.tsx - Integrated history system
- components/editor/EditControls.tsx - Updated keyboard shortcuts display
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Phase 2 Complete Features:
- Web Audio API context management with browser compatibility
- Audio file upload with drag-and-drop support
- Audio decoding for multiple formats (WAV, MP3, OGG, FLAC, AAC, M4A)
- AudioPlayer class with full playback control
- Waveform visualization using Canvas API
- Real-time waveform rendering with progress indicator
- Playback controls (play, pause, stop, seek)
- Volume control with mute/unmute
- Timeline scrubbing
- Audio file information display
Components:
- AudioEditor: Main editor container
- FileUpload: Drag-and-drop file upload component
- AudioInfo: Display audio file metadata
- Waveform: Canvas-based waveform visualization
- PlaybackControls: Transport controls with volume slider
Audio Engine:
- lib/audio/context.ts: AudioContext management
- lib/audio/decoder.ts: Audio file decoding utilities
- lib/audio/player.ts: AudioPlayer class for playback
- lib/waveform/peaks.ts: Waveform peak generation
Hooks:
- useAudioPlayer: Complete audio player state management
Types:
- types/audio.ts: TypeScript definitions for audio types
Features Working:
✓ Load audio files via drag-and-drop or file picker
✓ Display waveform with real-time progress
✓ Play/pause/stop controls
✓ Seek by clicking on waveform or using timeline slider
✓ Volume control with visual feedback
✓ Audio file metadata display (duration, sample rate, channels)
✓ Toast notifications for user feedback
✓ SSR-safe audio context initialization
✓ Dark/light theme support
Tech Stack:
- Web Audio API for playback
- Canvas API for waveform rendering
- React 19 hooks for state management
- TypeScript for type safety
Build verified and working ✓
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