Commit Graph

36 Commits

Author SHA1 Message Date
49dd0c2d38 feat: complete Phase 8.3 - recording settings (input gain, mono/stereo, sample rate)
Recording Settings (Phase 8.3):
- Added input gain control (0.0-2.0 with dB display)
- Real-time gain adjustment via GainNode during recording
- Mono/Stereo recording mode selection
- Sample rate matching (44.1kHz, 48kHz, 96kHz)
- Mono conversion averages all channels when enabled
- Recording settings panel shown when track is armed

Components Created:
- RecordingSettings.tsx: Settings panel with gain slider, mono/stereo toggle, sample rate buttons

Components Modified:
- useRecording hook: Added settings state and GainNode integration
- AudioEditor: Pass recording settings to TrackList
- TrackList: Forward settings to Track components
- Track: Show RecordingSettings when armed for recording

Technical Details:
- GainNode inserted between source and analyser in recording chain
- Real-time gain updates via gainNode.gain.value
- AudioContext created with target sample rate
- Mono conversion done post-recording by averaging channels
- Settings persist during recording session

Phase 8 Complete:
-  Phase 8.1: Audio Input
-  Phase 8.2: Recording Controls (punch/overdub)
-  Phase 8.3: Recording Settings
- 📋 Phase 9: Automation (NEXT)

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

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-18 15:51:38 +01:00
a5a75a5f5c feat: show volume off icon when track volume is 0
- Volume icon now switches between Volume2 and VolumeX based on volume value
- Matches behavior of master volume controls for consistency
- Icon size remains consistent at h-3.5 w-3.5

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

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-18 15:36:25 +01:00
85d27c3b13 feat: standardize icon sizes and replace pan icon with UnfoldHorizontal
- Replaced CircleArrowOutUpRight pan icon with UnfoldHorizontal
- Standardized all track control icons to h-3.5 w-3.5:
  - Volume, Pan, Mic, and Gauge icons now have consistent sizing
- Improves visual consistency across the track control panel

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

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-18 15:35:02 +01:00
546c80e4ae feat: display dB values and use gauge icon for level meters
Changed level meter display to show professional dB values instead
of percentages, and replaced volume icon with gauge icon.

Display Changes:
- Show dB values (-60 to 0) instead of percentage (0-100%)
- Use monospace font for consistent digit alignment
- Show "-∞" for silence (level = 0) instead of "-60"
- Rounded to nearest integer dB (no decimals for cleaner display)

Icon Updates:
- Replaced Volume2 icon with Gauge icon for playback levels
- Kept Mic icon for recording input levels
- Gauge better represents metering/measurement vs audio control

dB Conversion:
- Formula: dB = (normalized * 60) - 60
- Reverse of: normalized = (dB + 60) / 60
- Range: -60dB (silence) to 0dB (full scale)

Display Examples:
  0.00 (0%) = -∞   (silence)
  0.17 (17%) = -50dB (very quiet)
  0.50 (50%) = -30dB (moderate)
  0.83 (83%) = -10dB (loud)
  1.00 (100%) = 0dB (full scale)

Benefits:
 Professional dB notation matching industry standards
 Clearer for audio engineers and musicians
 Easier to identify levels relative to 0dBFS
 Gauge icon better conveys "measurement"
 Monospace font prevents number jumping

Now meters show "-18" instead of "70%" making it immediately
clear where you are in the dynamic range.

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

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-18 15:28:35 +01:00
6fbb677bd2 feat: implement real-time playback level monitoring for all tracks
Added comprehensive playback level monitoring system that shows
real-time audio levels during playback for each track.

useMultiTrackPlayer Hook:
- Added AnalyserNode for each track in audio graph
- Implemented RMS-based level calculation with requestAnimationFrame
- Added trackLevels state (Record<string, number>) tracking levels by track ID
- Insert analysers after effects chain, before master gain
- Monitor levels continuously during playback
- Clean up level monitoring on pause/stop

Audio Graph Chain:
source -> gain -> pan -> effects -> analyser -> master gain -> destination

AudioEditor Integration:
- Extract trackLevels from useMultiTrackPlayer hook
- Pass trackLevels down to TrackList component

TrackList & Track Components:
- Accept and forward trackLevels prop
- Pass playbackLevel to individual Track components
- Track component displays appropriate level:
  * Recording level (with "Input" label) when armed/recording
  * Playback level (with "Level" label) during normal playback

Visual Feedback:
- Color-coded meters: green -> yellow (70%) -> red (90%)
- Real-time percentage display
- Seamless switching between input and output modes

This completes Phase 8 (Recording) with full bidirectional level monitoring!

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

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-18 15:01:55 +01:00
fa397a1dfe fix: always show level meter and increase track height to 180px
Fixed layout issues with the level meter:

Track Height:
- Increased DEFAULT_TRACK_HEIGHT from 150px to 180px
- Ensures enough vertical space for all controls without clipping

Level Meter Display:
- Now always visible (not conditional on recording state)
- Shows "Input" with mic icon when track is armed or recording
- Shows "Level" with volume icon when not recording
- Displays appropriate level based on state

This prevents the meter from being cut off and provides consistent
visual feedback for all tracks. Future enhancement: show actual
playback output levels when not recording.

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Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-18 14:51:26 +01:00
5e6c61d951 feat: implement Phase 8.1 - audio recording infrastructure
Added recording capabilities to the multi-track editor:
- useRecording hook with MediaRecorder API integration
- Audio input device enumeration and selection
- Microphone permission handling
- Input level monitoring with RMS calculation
- InputLevelMeter component with visual feedback
- Record-enable button per track with pulsing indicator
- Real-time input level display when recording

Recording infrastructure is complete. Next: integrate into AudioEditor
for global recording control and buffer storage.

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Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-18 14:37:01 +01:00
166385d29a fix: drag-to-select now works reliably without Shift key
Fixed async state update issue where selections were being cleared
immediately after creation. The mouseUp handler now checks drag
distance directly instead of relying on async state, ensuring
selections persist correctly.

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

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-18 14:28:09 +01:00
1dc0604635 feat: add intuitive drag-to-select on waveforms
Improved selection UX to match professional DAWs:
- Drag directly on waveform to create selections (no modifier keys needed)
- Click without dragging seeks playhead and clears selection
- 3-pixel drag threshold prevents accidental selections
- Fixed variable name conflict with existing file drag-and-drop feature

Users can now naturally drag across waveforms to select regions for
editing, providing a more intuitive workflow.

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

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-18 14:25:49 +01:00
74879a42cf feat: implement multi-track waveform selection and editing with undo/redo
Added comprehensive selection and editing capabilities to multi-track editor:
- Visual selection overlay with Shift+drag interaction on waveforms
- Multi-track edit commands (cut, copy, paste, delete, duplicate)
- Full keyboard shortcut support (Ctrl+X/C/V/D, Delete, Ctrl+Z/Y)
- Complete undo/redo integration via command pattern
- Per-track selection state with localStorage persistence
- Audio buffer manipulation utilities (extract, insert, delete, duplicate segments)
- Toast notifications for all edit operations
- Red playhead to distinguish from blue selection overlay

All edit operations are fully undoable and integrated with the existing
history manager system.

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

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-18 13:05:05 +01:00
beb7085c89 feat: complete Phase 7.4 - real-time track effects system
Implemented comprehensive real-time effect processing for multi-track audio:

Core Features:
- Per-track effect chains with drag-and-drop reordering
- Effect bypass/enable toggle per effect
- Real-time parameter updates (filters, dynamics, time-based, distortion, bitcrusher, pitch, timestretch)
- Add/remove effects during playback without interruption
- Effect chain persistence via localStorage
- Automatic playback stop when tracks are deleted

Technical Implementation:
- Effect processor with dry/wet routing for bypass functionality
- Real-time effect parameter updates using AudioParam setValueAtTime
- Structure change detection for add/remove/reorder operations
- Stale closure fix using refs for latest track state
- ScriptProcessorNode for bitcrusher, pitch shifter, and time stretch
- Dual-tap delay line for pitch shifting
- Overlap-add synthesis for time stretching

UI Components:
- EffectBrowser dialog with categorized effects
- EffectDevice component with parameter controls
- EffectParameters for all 19 real-time effect types
- Device rack with horizontal scrolling (Ableton-style)

Removed offline-only effects (normalize, fadeIn, fadeOut, reverse) as they don't fit the real-time processing model.

Completed all items in Phase 7.4:
- [x] Per-track effect chain
- [x] Effect rack UI
- [x] Effect bypass per track
- [x] Real-time effect processing during playback
- [x] Add/remove effects during playback
- [x] Real-time parameter updates
- [x] Effect chain persistence

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

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-18 12:08:33 +01:00
ee24f04d76 feat: add automatic waveform repaint on theme change
Implemented MutationObserver to detect theme changes:

- Added themeKey state that increments on theme change
- MutationObserver watches document.documentElement for class changes
- Detects when "dark" class is toggled
- Added themeKey to waveform effect dependencies
- Canvas automatically redraws with new theme colors

How it works:
1. Observer listens for class attribute changes on <html>
2. When dark mode is toggled, themeKey increments
3. useEffect dependency triggers canvas redraw
4. getComputedStyle reads fresh --color-waveform-bg value
5. Waveform renders with correct theme background

Benefits:
- Seamless theme transitions
- Waveform colors always match current theme
- No manual refresh needed
- Automatic cleanup on unmount

Now switching between light/dark themes instantly updates
all waveform backgrounds with the correct theme colors!

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

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-18 08:36:49 +01:00
2a0d6cd673 fix: replace hardcoded colors with theme variables in Track component
Replaced hardcoded slate colors with theme-aware variables:

Track.tsx changes:
- Waveform area: bg-slate-900 → bg-waveform-bg
- Effects section: bg-slate-900/50 → bg-muted/50
- Expanded effects: bg-slate-900/30 → bg-muted/70
- Canvas background: rgb(15, 23, 42) → --color-waveform-bg

This ensures that:
- Light theme shows proper light gray backgrounds
- Dark theme shows proper dark gray backgrounds
- All components respect theme colors
- No more hardcoded colors that bypass the theme

Now the entire UI properly responds to theme changes with
the harmonized gray palettes we configured.

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Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-18 08:34:14 +01:00
439c14db87 feat: show effect chain in collapsed state and polish visual integration
Visual improvements:
- Effects section background now matches waveform (slate-900/50)
- More subtle border (border-border/50)
- Compact header (py-1.5 instead of py-2)
- Expanded area has darker background (slate-900/30) for depth

Collapsed state improvements:
- When collapsed, shows mini effect chips in the header
- Each chip shows effect name with visual state:
  - Enabled: primary color with border (blue/accent)
  - Disabled: muted with border
- Chips are scrollable horizontally if many effects
- Falls back to "Devices (count)" when no effects

Better integration:
- Background colors tie to waveform area
- Subtle hover effect on header (accent/30)
- Visual hierarchy: waveform -> effects blend together
- No more "abandoned" feeling - feels like part of the track

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

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-18 08:23:20 +01:00
25be7027f3 refactor: make effects section always visible with inline collapse toggle
- Removed "Devices" button from control panel
- Effects section now always present below each track
- Collapsible via chevron in the effects header itself
- Click header to expand/collapse the device rack
- "+" button in header to add effects (with stopPropagation)
- Each track has independent collapse state
- Hover effect on header for better UX

This matches the typical DAW layout where each track has its own
device section that can be individually collapsed/expanded.

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

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-18 08:16:41 +01:00
b9ffbf28ef feat: move effects section to collapsible area below track waveform
Major UX improvement inspired by Ableton Live's device view:

- Effects section now appears below the waveform in the track lane
- Toggle button in control panel shows/hides the effects area
- Gives much more horizontal space for device rack
- Effects section spans full width of track (control panel + waveform)
- Clean separation between track controls and effects
- Header with device count, add button, and close button

Layout changes:
- Track structure changed from horizontal to vertical flex
- Top row contains control panel + waveform (fixed height)
- Bottom section contains collapsible effects area (when shown)
- Effects hidden by default, toggled via "Devices" button
- When collapsed, track doesn't show effects section

This provides a cleaner workflow where users can focus on mixing
when effects are hidden, then expand to full device view when needed.

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

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-18 08:14:13 +01:00
a3fb8a564e fix: remove pan separator and make effects container full width
- Removed border-t border-border from devices section
- Added negative margin (-mx-3) and padding (px-3) to effects container
  to make it extend full width of the track control panel

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Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-18 08:11:20 +01:00
6bfc8d3cfe feat: implement horizontal device rack with collapsible effect cards
- Created EffectDevice component with expand/collapse state
- Each device shows name, type, enabled/disabled toggle, and remove button
- When expanded, devices show parameter details
- Replaced vertical effect list with horizontal scrolling rack
- Effects display in 192px wide cards with visual feedback
- Power button toggles effect enabled/disabled state
- Parameters display shown when expanded (controls coming soon)

This matches the Ableton Live/Bitwig workflow where effects are
arranged horizontally with collapsible UI for each device.

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

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-18 08:09:49 +01:00
cb396ddfd6 feat: add EffectBrowser dialog for adding effects to tracks
Created a beautiful effect browser dialog inspired by Ableton Live:

**EffectBrowser Component:**
- Modal dialog with search functionality
- Effects organized by category:
  - Dynamics (Compressor, Limiter, Gate)
  - Filters (Lowpass, Highpass, Bandpass, etc.)
  - Time-Based (Delay, Reverb, Chorus, Flanger, Phaser)
  - Distortion (Distortion, Bitcrusher)
  - Pitch & Time (Pitch Shifter, Time Stretch)
  - Utility (Normalize, Fade In/Out, Reverse)
- Grid layout with hover effects
- Real-time search filtering
- Click effect to add to track

**Integration:**
- "+" button in track strip opens EffectBrowser dialog
- Selecting an effect adds it to the track's effect chain
- Effects appear immediately in the Devices section
- Full enable/disable and remove functionality

**UX Flow:**
1. Click "+" in track Devices section
2. Browse or search for effect
3. Click effect to add it
4. Effect appears in Devices list
5. Toggle on/off with ●/○
6. Remove with × button

Effects are now fully manageable in the UI! Next: Apply them to audio.

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Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-18 08:02:21 +01:00
25e843236d fix: add missing Plus icon import in Track component 2025-11-18 07:52:24 +01:00
4547446ced fix: improve devices section UX
- Remove border separator above Devices section for cleaner look
- Add "+" button next to Devices header to add new effects
- Button placement matches Ableton/Bitwig pattern
- TODO: Implement effect browser dialog when + is clicked

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Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-18 07:51:51 +01:00
f3f5b65e1e feat: implement Ableton Live-style DAW layout
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!

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

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-18 07:46:27 +01:00
e3582b7b9a feat: show waveform in collapsed state
Changes:
- Waveform canvas now displays even when track is collapsed
- Only the upload placeholder is hidden when collapsed
- Gives better visual overview when tracks are minimized
- Similar to DAWs like Ableton Live

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

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-18 07:09:29 +01:00
1404228239 feat: implement drag & drop for audio loading and decrease upload icon
Changes:
- Reduced upload icon size from h-8 w-8 to h-6 w-6 (smaller, cleaner)
- Implemented full drag & drop functionality for audio files
- Shows visual feedback when dragging: blue border, primary color highlight
- Changes text to "Drop audio file here" when dragging over
- Validates dropped file is audio type before processing
- Updated message from "coming soon" to active "or drag & drop"

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Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-18 07:08:04 +01:00
889b2b91ae feat: add click-to-load audio on empty track waveform
Changes:
- Empty tracks now show upload icon and "Click to load audio file" message
- Clicking the placeholder opens native file dialog
- Automatically decodes audio file and updates track with AudioBuffer
- Auto-renames track to filename if track name is still default
- Hover effect with background color change for better UX
- Message about drag & drop coming soon

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Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-18 07:06:46 +01:00
8ffa8e8b81 fix: revert pan icon size back to h-3 w-3
Volume icon is h-3.5 w-3.5, pan icon is h-3 w-3 as requested.

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Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-18 07:04:08 +01:00
d3ef961d31 fix: make volume and pan icons the same size
Changed both icons from h-3 w-3 to h-3.5 w-3.5 for consistent sizing.

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Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-18 07:03:24 +01:00
da5045e4f8 refactor: change pan icon to CircleArrowOutUpRight
Replaced Move icon with CircleArrowOutUpRight for better visual
representation of panning direction control.

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Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-18 07:02:32 +01:00
8023369239 feat: add pan knob icon to Pan label
Added Move icon (crosshair/knob) to Pan label to match Volume's icon.
Now both controls have visual icons for better UI consistency.

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Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-18 07:00:57 +01:00
b8d2cb9585 refactor: make volume and pan sliders inline with labels
Changed slider layout to horizontal:
- Label | Slider | Value all in one row
- Volume: "Volume" icon + label (64px) | slider (flex) | "80%" (40px)
- Pan: "Pan" label (64px) | slider (flex) | "C/L50/R50" (40px)
- Much more compact and professional looking
- Similar to professional DAW mixer strips

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Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-18 06:59:24 +01:00
401bab8886 refactor: move solo/mute to header as icon buttons and fix waveform height
Changes:
- Solo and Mute buttons now appear as icon buttons in the track header (next to trash)
- Removed redundant solo/mute button row from the expanded controls
- Cleaner, more compact layout
- Canvas now uses parent container's size for proper full-height rendering
- Added track.height to canvas effect dependencies

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

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-18 06:56:38 +01:00
8bd326a21b fix: align waveform height with control panel and fix border separator
Changes:
- Waveform now uses absolute positioning to fill the full height of the track
- Border separator only appears at the bottom of each section, not through the control panel
- Both control panel and waveform are now the same height
- Cleaner visual appearance

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

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-18 06:53:44 +01:00
4381057f3f refactor: make track control panel full height and remove redundant buttons
Changes:
- Track control panel now uses flexbox (full height, no scrolling)
- Removed "Add Empty Track" and "Import Audio Files" buttons from main area
- All track management is now done via the sidebar only
- Cleaner, more professional DAW-style interface

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

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-18 06:52:05 +01:00
e376f3b0b4 feat: redesign track layout to DAW-style with left control panel
Major UX improvement inspired by Audacity/Ableton Live:

- Each track now has 2 sections: left control panel (fixed 288px) and right waveform (flexible)
- Left panel contains: track name, color indicator, collapse toggle, volume, pan, solo, mute, delete
- TrackHeader component functionality moved directly into Track component
- Removed redundant track controls from SidePanel
- SidePanel now simplified to show global actions and effect chain
- Track controls are always visible on the left, waveform scrolls horizontally on the right
- Collapsed tracks show only the header row (48px height)
- Much better UX for multi-track editing

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

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-18 06:41:22 +01:00
de8a3ff187 feat: refactor to multi-track only editor with sidebar controls
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

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

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-17 22:17:09 +01:00
3c950eeba7 feat: implement Phase 7.1-7.2 multi-track infrastructure
Added core multi-track support with track management and controls:

**Track Types & Utilities:**
- Track interface with audio buffer, controls (volume/pan/solo/mute)
- Track utility functions for creation, mixing, and gain calculation
- Track color system with 9 preset colors
- Configurable track heights (60-300px)

**Components:**
- TrackHeader: Collapsible track controls with inline name editing
  - Solo/Mute buttons with visual feedback
  - Volume slider (0-100%) and Pan control (L-C-R)
  - Track color indicator and remove button
- Track: Waveform display component with canvas rendering
  - Click-to-seek on waveform
  - Playhead visualization
  - Support for collapsed state
- TrackList: Container managing multiple tracks
  - Scrollable track list with custom scrollbar
  - Add track button
  - Empty state UI

**State Management:**
- useMultiTrack hook with localStorage persistence
- Add/remove/update/reorder track operations
- Track buffer management

Features implemented:
-  Track creation and removal
-  Track naming (editable)
-  Track colors
-  Solo/Mute per track
-  Volume fader per track (0-100%)
-  Pan control per track (L-C-R)
-  Track collapse/expand
-  Track height configuration
-  Waveform visualization per track
-  Multi-track audio mixing utilities

Next: Integrate into AudioEditor and implement multi-track playback

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Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-17 20:59:36 +01:00