docs: add audio system enhancement tasksHEADmain

Add two low-priority sub-tasks:
- MP3 sample assets with miniaudio
- GPU-accelerated PCM synthesis via compute shader

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

1 files changed, 20 insertions, 0 deletions

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@@ -66,6 +66,26 @@ Enhance tracker with sample offset and humanization for realistic playback.
 
 ---
 
+## Priority 4: Audio System Enhancements [LOW PRIORITY]
+
+Extended audio capabilities for sample assets and procedural synthesis.
+
+**Sub-tasks:**
+
+1. **MP3 Sample Assets:**
+   - Integrate miniaudio for MP3 decoding
+   - Add ASSET_*.mp3 support to asset_packer
+   - Convert to PCM in AssetManager or synth on load
+   - Use case: Compressed sample libraries
+
+2. **GPU-Accelerated PCM Synthesis:**
+   - Compute shader for direct PCM generation (bypass spectrogram)
+   - Write to compute buffer, readback to synth
+   - Use case: Real-time modulation, complex waveforms
+   - Lower latency than spectrogram path
+
+---
+
 ## Priority 4: 3D System Enhancements (Task #18)
 
 Pipeline for importing complex 3D scenes to replace hardcoded geometry.