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 ✓ 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
45 lines
787 B
TypeScript
45 lines
787 B
TypeScript
/**
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* Audio type definitions for the audio editor
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*/
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export interface AudioFile {
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id: string;
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name: string;
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size: number;
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duration: number;
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sampleRate: number;
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numberOfChannels: number;
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buffer: AudioBuffer;
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}
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export interface PlaybackState {
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isPlaying: boolean;
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isPaused: boolean;
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currentTime: number;
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duration: number;
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volume: number;
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playbackRate: number;
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}
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export interface WaveformData {
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peaks: Float32Array[];
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length: number;
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sampleRate: number;
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duration: number;
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}
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export interface Region {
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id: string;
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start: number;
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end: number;
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label?: string;
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color?: string;
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}
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export interface AudioContext {
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context: AudioContext | null;
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buffer: AudioBuffer | null;
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source: AudioBufferSourceNode | null;
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gainNode: GainNode | null;
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}
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