Source library
Ocean Ambience — PS1 Implementation Plan
docs/ps1/background-music-feasibility.md
This is the website shelf page for docs/ps1/background-music-feasibility.md.
It exists because the project has hundreds of Markdown files and the website
should not pretend the interesting work only happened in the polished essays.
Why this file matters
Active PS1 reference. This is active engineering documentation for the PS1 port. It is close enough to the code that stale claims here become real bugs.
Date: 2026-05-01 Branch context: ocean-ambience-20260501, shipped as v0.6.0-ps1. Status: shipped. Asset, boot loader, pause-menu toggle, memcard persistence, and CD-image embedding are all live.
File facts
| Field | Value |
|---|---|
| Source path | docs/ps1/background-music-feasibility.md |
| Lines | 489 |
| Approx. words | 2873 |
| Code fences | 8 |
Outline
- Ocean Ambience — PS1 Implementation Plan
- Shipped state (v0.6.0-ps1)
- Goal
- What “zero CPU” rules out
- Mechanism Choice: Pre-loaded ADPCM Loop in SPU RAM
- Source: BigSoundBank “Sea: Waves” (CC0)
- Loop Construction: 20-Second Crossfade-Replace Seam
- How the crossfade-replace works
- Loop seam audibility
- Final VAG specs
- Encoding Pipeline (Reproducible)
- SPU RAM Map
- Pause-Menu Toggle: oceanAmbientEnabled
- Global state