Switched from low-level Lame API to Mp3Encoder class which:
- Properly initializes all required modules (Lame, BitStream, etc.)
- Handles module dependencies via setModules() calls
- Provides a simpler encodeBuffer/flush API
- Resolves "init_bit_stream_w is not defined" error
Updated TypeScript declarations to export Mp3Encoder and WavHeader
from lamejs/src/js/index.js
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Co-Authored-By: Claude <noreply@anthropic.com>
Fixed MP3 export by importing lamejs modules directly from source:
- Import MPEGMode, Lame, and BitStream from individual source files
- Use Lame API directly instead of Mp3Encoder wrapper
- Updated TypeScript declarations for each module
- Resolves "MPEGMode is not defined" error
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Co-Authored-By: Claude <noreply@anthropic.com>
Switched from npm package to GitHub repo (github:zhuker/lamejs) which
includes the proper browser build. Reverted to simple dynamic import.
Fixes MP3 export MPEGMode reference error.
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Co-Authored-By: Claude <noreply@anthropic.com>
Changed MP3 export to dynamically load the pre-built lame.min.js
bundle from node_modules instead of trying to import the CommonJS
module. The browser bundle properly bundles all dependencies including
MPEGMode and exposes a global lamejs object.
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Co-Authored-By: Claude <noreply@anthropic.com>
Fixed MP3 export error by handling both default and named exports
from lamejs module to support CommonJS/ESM interop.
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Co-Authored-By: Claude <noreply@anthropic.com>
Implemented Phase 11.1 export format support:
- Added MP3 export using lamejs library
- Added FLAC export using fflate DEFLATE compression
- Updated ExportDialog with format selector and format-specific options
- MP3: bitrate selector (128/192/256/320 kbps)
- FLAC: compression quality slider (0-9)
- WAV: bit depth selector (16/24/32-bit)
- Updated AudioEditor to route export based on selected format
- Created TypeScript declarations for lamejs
- Fixed AudioStatistics to use audioBuffer instead of buffer property
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Co-Authored-By: Claude <noreply@anthropic.com>
Implemented comprehensive automation recording system for volume, pan, and effect parameters:
- Added automation recording modes:
- Write: Records continuously during playback when values change
- Touch: Records only while control is being touched/moved
- Latch: Records from first touch until playback stops
- Implemented value change detection (0.001 threshold) to prevent infinite loops
- Fixed React setState-in-render errors by:
- Using queueMicrotask() to defer state updates
- Moving lane creation logic to useEffect
- Properly memoizing touch handlers with useMemo
- Added proper value ranges for effect parameters:
- Frequency: 20-20000 Hz
- Q: 0.1-20
- Gain: -40-40 dB
- Enhanced automation lane auto-creation with parameter-specific ranges
- Added touch callbacks to all parameter controls (volume, pan, effects)
- Implemented throttling (100ms) to avoid excessive automation points
Technical improvements:
- Used tracksRef and onRecordAutomationRef to ensure latest values in animation loops
- Added proper cleanup on playback stop
- Optimized recording to only trigger when values actually change
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Co-Authored-By: Claude <noreply@anthropic.com>
