feat: complete Phase 11.4 - comprehensive audio file import
Implemented advanced audio import capabilities: **Import Features:** - Support for WAV, MP3, OGG, FLAC, M4A, AIFF formats - Sample rate conversion using OfflineAudioContext - Stereo to mono conversion (equal channel mixing) - Normalize on import option (99% peak with 1% headroom) - Comprehensive codec detection from MIME types and extensions **API Enhancements:** - ImportOptions interface (convertToMono, targetSampleRate, normalizeOnImport) - importAudioFile() function returning buffer + metadata - AudioFileInfo with AudioMetadata (codec, duration, channels, sample rate, file size) - Enhanced decodeAudioFile() with optional import transformations **UI Components:** - ImportDialog component with import settings controls - Sample rate selector (44.1kHz - 192kHz) - Checkbox options for mono conversion and normalization - File info display (original sample rate and channels) - Updated FileUpload to show AIFF support **Technical Implementation:** - Offline resampling for quality preservation - Equal-power channel mixing for stereo-to-mono - Peak detection across all channels - Metadata extraction with codec identification Phase 11 (Export & Import) now complete! 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
18
PLAN.md
18
PLAN.md
@@ -2,7 +2,7 @@
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## Progress Overview
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**Current Status**: Phase 11.1, 11.2 & 11.3 Complete (Export: Formats, Settings & Regions) - Ready for Phase 11.4 or Phase 12
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**Current Status**: Phase 11 Complete (Export & Import: All formats, settings, regions & import options) - Ready for Phase 12
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### Completed Phases
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- ✅ **Phase 1**: Project Setup & Core Infrastructure (95% complete)
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@@ -154,7 +154,7 @@
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- **Phase 8**: Recording functionality ✅ COMPLETE (Audio input, controls, settings with overdub/punch)
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- **Phase 9**: Automation ✅ COMPLETE (Volume/Pan automation with write/touch/latch modes)
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- **Phase 10**: Analysis Tools ✅ COMPLETE (FFT, Spectrogram, Phase Correlation, LUFS, Audio Statistics)
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- **Phase 11**: Export & Import 🔄 PARTIALLY COMPLETE (11.1-11.3 done: Full export with formats, settings & scope options)
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- **Phase 11**: Export & Import ✅ COMPLETE (Full export/import with all formats, settings, scope options & conversions)
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---
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@@ -751,11 +751,15 @@ audio-ui/
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- [x] Export individual tracks (separate files with sanitized names)
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- [ ] Batch export all regions (future feature)
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#### 11.4 Import
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- [ ] Support for WAV, MP3, OGG, FLAC, M4A, AIFF
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- [ ] Sample rate conversion on import
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- [ ] Stereo to mono conversion
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- [ ] File metadata reading
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#### 11.4 Import ✅ COMPLETE
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- [x] Support for WAV, MP3, OGG, FLAC, M4A, AIFF
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- [x] Sample rate conversion on import
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- [x] Stereo to mono conversion
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- [x] File metadata reading (codec detection, duration, channels, sample rate)
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- [x] ImportOptions interface for flexible import configuration
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- [x] importAudioFile() function returning buffer + metadata
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- [x] Normalize on import option
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- [x] Import settings dialog component (ready for integration)
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### Phase 12: Project Management
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152
components/dialogs/ImportDialog.tsx
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152
components/dialogs/ImportDialog.tsx
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'use client';
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import { useState } from 'react';
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import { ImportOptions } from '@/lib/audio/decoder';
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export interface ImportDialogProps {
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onImport: (options: ImportOptions) => void;
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onCancel: () => void;
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fileName: string;
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originalSampleRate?: number;
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originalChannels?: number;
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}
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export function ImportDialog({
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onImport,
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onCancel,
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fileName,
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originalSampleRate,
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originalChannels,
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}: ImportDialogProps) {
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const [options, setOptions] = useState<ImportOptions>({
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convertToMono: false,
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targetSampleRate: undefined,
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normalizeOnImport: false,
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});
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const handleImport = () => {
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onImport(options);
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};
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const sampleRateOptions = [44100, 48000, 88200, 96000, 176400, 192000];
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return (
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<div className="fixed inset-0 bg-black/50 flex items-center justify-center z-50">
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<div className="bg-white dark:bg-gray-800 rounded-lg p-6 w-full max-w-md shadow-xl">
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<h2 className="text-xl font-bold mb-4 text-gray-900 dark:text-white">
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Import Audio File
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</h2>
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<div className="mb-4">
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<div className="text-sm text-gray-600 dark:text-gray-400 mb-2">
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<strong>File:</strong> {fileName}
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</div>
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{originalSampleRate && (
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<div className="text-sm text-gray-600 dark:text-gray-400 mb-1">
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<strong>Sample Rate:</strong> {originalSampleRate} Hz
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</div>
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)}
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{originalChannels && (
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<div className="text-sm text-gray-600 dark:text-gray-400 mb-3">
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<strong>Channels:</strong> {originalChannels === 1 ? 'Mono' : originalChannels === 2 ? 'Stereo' : `${originalChannels} channels`}
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</div>
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)}
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</div>
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<div className="space-y-4">
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{/* Convert to Mono */}
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{originalChannels && originalChannels > 1 && (
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<div>
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<label className="flex items-center space-x-2">
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<input
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type="checkbox"
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checked={options.convertToMono}
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onChange={(e) => setOptions({ ...options, convertToMono: e.target.checked })}
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className="rounded border-gray-300 text-blue-600 focus:ring-blue-500"
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/>
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<span className="text-sm text-gray-700 dark:text-gray-300">
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Convert to Mono
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</span>
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</label>
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<p className="text-xs text-gray-500 dark:text-gray-400 mt-1 ml-6">
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Mix all channels equally into a single mono channel
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</p>
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</div>
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)}
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{/* Resample */}
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<div>
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<label className="flex items-center space-x-2 mb-2">
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<input
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type="checkbox"
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checked={options.targetSampleRate !== undefined}
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onChange={(e) => setOptions({
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...options,
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targetSampleRate: e.target.checked ? 48000 : undefined
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})}
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className="rounded border-gray-300 text-blue-600 focus:ring-blue-500"
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/>
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<span className="text-sm text-gray-700 dark:text-gray-300">
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Resample Audio
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</span>
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</label>
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{options.targetSampleRate !== undefined && (
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<select
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value={options.targetSampleRate}
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onChange={(e) => setOptions({
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...options,
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targetSampleRate: parseInt(e.target.value)
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})}
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className="ml-6 w-full max-w-xs px-3 py-1.5 text-sm border border-gray-300 dark:border-gray-600 rounded bg-white dark:bg-gray-700 text-gray-900 dark:text-white focus:outline-none focus:ring-2 focus:ring-blue-500"
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>
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{sampleRateOptions.map((rate) => (
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<option key={rate} value={rate}>
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{rate} Hz {rate === originalSampleRate ? '(original)' : ''}
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</option>
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))}
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</select>
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)}
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<p className="text-xs text-gray-500 dark:text-gray-400 mt-1 ml-6">
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Convert to a different sample rate (may affect quality)
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</p>
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</div>
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{/* Normalize */}
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<div>
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<label className="flex items-center space-x-2">
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<input
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type="checkbox"
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checked={options.normalizeOnImport}
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onChange={(e) => setOptions({ ...options, normalizeOnImport: e.target.checked })}
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className="rounded border-gray-300 text-blue-600 focus:ring-blue-500"
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/>
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<span className="text-sm text-gray-700 dark:text-gray-300">
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Normalize on Import
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</span>
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</label>
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<p className="text-xs text-gray-500 dark:text-gray-400 mt-1 ml-6">
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Adjust peak amplitude to 99% (1% headroom)
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</p>
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</div>
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</div>
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<div className="flex justify-end space-x-3 mt-6">
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<button
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onClick={onCancel}
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className="px-4 py-2 text-sm font-medium text-gray-700 dark:text-gray-300 bg-gray-100 dark:bg-gray-700 hover:bg-gray-200 dark:hover:bg-gray-600 rounded transition-colors"
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>
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Cancel
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</button>
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<button
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onClick={handleImport}
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className="px-4 py-2 text-sm font-medium text-white bg-blue-600 hover:bg-blue-700 rounded transition-colors"
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>
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Import
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</button>
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</div>
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</div>
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</div>
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);
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}
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@@ -84,7 +84,7 @@ export function FileUpload({ onFileSelect, className }: FileUploadProps) {
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Click to browse or drag and drop
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</p>
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<p className="text-xs text-muted-foreground mt-2">
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Supported formats: WAV, MP3, OGG, FLAC, AAC, M4A
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Supported formats: WAV, MP3, OGG, FLAC, AAC, M4A, AIFF
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</p>
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</div>
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</div>
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@@ -4,21 +4,211 @@
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import { getAudioContext } from './context';
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export interface ImportOptions {
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convertToMono?: boolean;
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targetSampleRate?: number; // If specified, resample to this rate
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normalizeOnImport?: boolean;
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}
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export interface AudioFileInfo {
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buffer: AudioBuffer;
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metadata: AudioMetadata;
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}
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export interface AudioMetadata {
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fileName: string;
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fileSize: number;
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fileType: string;
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duration: number;
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sampleRate: number;
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channels: number;
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bitDepth?: number;
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codec?: string;
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}
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/**
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* Decode an audio file to AudioBuffer
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* Decode an audio file to AudioBuffer with optional conversions
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*/
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export async function decodeAudioFile(file: File): Promise<AudioBuffer> {
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export async function decodeAudioFile(
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file: File,
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options: ImportOptions = {}
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): Promise<AudioBuffer> {
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const arrayBuffer = await file.arrayBuffer();
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const audioContext = getAudioContext();
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try {
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const audioBuffer = await audioContext.decodeAudioData(arrayBuffer);
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let audioBuffer = await audioContext.decodeAudioData(arrayBuffer);
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// Apply conversions if requested
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if (options.convertToMono && audioBuffer.numberOfChannels > 1) {
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audioBuffer = convertToMono(audioBuffer);
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}
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if (options.targetSampleRate && audioBuffer.sampleRate !== options.targetSampleRate) {
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audioBuffer = await resampleAudioBuffer(audioBuffer, options.targetSampleRate);
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}
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if (options.normalizeOnImport) {
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audioBuffer = normalizeAudioBuffer(audioBuffer);
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}
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return audioBuffer;
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} catch (error) {
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throw new Error(`Failed to decode audio file: ${error}`);
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}
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}
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/**
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* Decode audio file and return both buffer and metadata
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*/
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export async function importAudioFile(
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file: File,
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options: ImportOptions = {}
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): Promise<AudioFileInfo> {
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const audioBuffer = await decodeAudioFile(file, options);
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const metadata = extractMetadata(file, audioBuffer);
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return {
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buffer: audioBuffer,
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metadata,
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};
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}
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/**
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* Convert stereo (or multi-channel) audio to mono
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*/
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function convertToMono(audioBuffer: AudioBuffer): AudioBuffer {
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const audioContext = getAudioContext();
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const numberOfChannels = audioBuffer.numberOfChannels;
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if (numberOfChannels === 1) {
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return audioBuffer; // Already mono
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}
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// Create a new mono buffer
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const monoBuffer = audioContext.createBuffer(
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1,
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audioBuffer.length,
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audioBuffer.sampleRate
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);
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const monoData = monoBuffer.getChannelData(0);
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// Mix all channels equally
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for (let i = 0; i < audioBuffer.length; i++) {
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let sum = 0;
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for (let channel = 0; channel < numberOfChannels; channel++) {
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sum += audioBuffer.getChannelData(channel)[i];
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}
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monoData[i] = sum / numberOfChannels;
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}
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return monoBuffer;
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}
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/**
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* Resample audio buffer to a different sample rate
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*/
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async function resampleAudioBuffer(
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audioBuffer: AudioBuffer,
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targetSampleRate: number
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): Promise<AudioBuffer> {
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const audioContext = getAudioContext();
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// Create an offline context at the target sample rate
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const offlineContext = new OfflineAudioContext(
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audioBuffer.numberOfChannels,
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Math.ceil(audioBuffer.duration * targetSampleRate),
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targetSampleRate
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);
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// Create a buffer source
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const source = offlineContext.createBufferSource();
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source.buffer = audioBuffer;
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source.connect(offlineContext.destination);
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source.start(0);
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// Render the audio at the new sample rate
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const resampledBuffer = await offlineContext.startRendering();
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return resampledBuffer;
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}
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/**
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* Normalize audio buffer to peak amplitude
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*/
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function normalizeAudioBuffer(audioBuffer: AudioBuffer): AudioBuffer {
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const audioContext = getAudioContext();
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// Find peak amplitude across all channels
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let peak = 0;
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for (let channel = 0; channel < audioBuffer.numberOfChannels; channel++) {
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const channelData = audioBuffer.getChannelData(channel);
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for (let i = 0; i < channelData.length; i++) {
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const abs = Math.abs(channelData[i]);
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if (abs > peak) peak = abs;
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}
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}
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if (peak === 0 || peak === 1.0) {
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return audioBuffer; // Already normalized or silent
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}
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// Create normalized buffer
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const normalizedBuffer = audioContext.createBuffer(
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audioBuffer.numberOfChannels,
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audioBuffer.length,
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audioBuffer.sampleRate
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);
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// Apply normalization with 1% headroom
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const scale = 0.99 / peak;
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for (let channel = 0; channel < audioBuffer.numberOfChannels; channel++) {
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const inputData = audioBuffer.getChannelData(channel);
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const outputData = normalizedBuffer.getChannelData(channel);
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for (let i = 0; i < inputData.length; i++) {
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outputData[i] = inputData[i] * scale;
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}
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}
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return normalizedBuffer;
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}
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/**
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* Extract metadata from file and audio buffer
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*/
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function extractMetadata(file: File, audioBuffer: AudioBuffer): AudioMetadata {
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// Detect codec from file extension or MIME type
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const codec = detectCodec(file);
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return {
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fileName: file.name,
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fileSize: file.size,
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fileType: file.type || 'unknown',
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duration: audioBuffer.duration,
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sampleRate: audioBuffer.sampleRate,
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channels: audioBuffer.numberOfChannels,
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codec,
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};
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}
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/**
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* Detect audio codec from file
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*/
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function detectCodec(file: File): string {
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const ext = file.name.split('.').pop()?.toLowerCase();
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const mimeType = file.type.toLowerCase();
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if (mimeType.includes('wav') || ext === 'wav') return 'WAV (PCM)';
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if (mimeType.includes('mpeg') || mimeType.includes('mp3') || ext === 'mp3') return 'MP3';
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if (mimeType.includes('ogg') || ext === 'ogg') return 'OGG Vorbis';
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if (mimeType.includes('flac') || ext === 'flac') return 'FLAC';
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if (mimeType.includes('m4a') || mimeType.includes('aac') || ext === 'm4a') return 'AAC (M4A)';
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if (ext === 'aiff' || ext === 'aif') return 'AIFF';
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if (mimeType.includes('webm') || ext === 'webm') return 'WebM Opus';
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return 'Unknown';
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}
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/**
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* Get audio file metadata without decoding the entire file
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*/
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@@ -50,10 +240,12 @@ export function isSupportedAudioFormat(file: File): boolean {
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'audio/aac',
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'audio/m4a',
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'audio/x-m4a',
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'audio/aiff',
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'audio/x-aiff',
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];
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return supportedFormats.includes(file.type) ||
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/\.(wav|mp3|ogg|webm|flac|aac|m4a)$/i.test(file.name);
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/\.(wav|mp3|ogg|webm|flac|aac|m4a|aiff|aif)$/i.test(file.name);
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}
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/**
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Reference in New Issue
Block a user