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# Developer Tools Reference
Comprehensive reference for all developer tools in the project.
---
## Windows Cross-Compilation
```bash
# Fetch dependencies
./scripts/fetch_win_deps.sh
# Build Windows binary
./scripts/build_win.sh
# Run with Wine
./scripts/run_win.sh
```
---
## spectool (Audio Analysis)
```bash
# Build
cmake -S . -B build -DDEMO_BUILD_TOOLS=ON
cmake --build build -j4
# Analyze WAV/MP3 → .spec (v2 OLA format)
./build/spectool analyze input.wav output.spec
./build/spectool analyze input.wav output.spec --normalize # normalize to RMS 0.15
./build/spectool analyze input.wav output.spec --normalize 0.20 # custom RMS target
# Decode .spec → mono 16-bit WAV (32 kHz, IDCT-OLA synthesis)
./build/spectool wav input.spec output.wav
# Play .spec file via audio device
./build/spectool play input.spec
# Generate test spectrogram (C major scale)
./build/spectool test_gen output.spec
```
---
## Code Coverage (macOS)
```bash
# Install lcov
brew install lcov
# Generate coverage report
./scripts/gen_coverage_report.sh [target_dir]
```
Creates HTML coverage report.
---
## Submodule Updates
```bash
cd third_party/wgpu-native
git fetch
git checkout trunk
git reset --hard origin/trunk
cd ../..
git add third_party/wgpu-native
git commit -m "chore: Update wgpu-native"
```
Updates wgpu-native to latest trunk.
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