Procedural Composer: Pure-Code Audio Synthesis & Chiptune/Game Sound Engine Guide

This skill provides complete mathematical, musical, and software architecture patterns for generating high-quality sound effects (SFX) and polyphonic background music (BGM) purely in code—without relying on external .wav, .mp3, or .ogg audio files.

Available scripts

• scripts/sound.go: Sound engine driver, 4-byte aligned PCM synthesizer, DSP post-processing pipeline (SliceLoopPCM, ApplyLowPassFilter, ApplyHighPassFilter, ApplyBitcrush), and declarative JSON audio definition parser.
• scripts/sound_test.go: Go unit tests and example BGM/SFX composition recipes.
• scripts/play.go: CLI audio player and WAV export utility.

1. Core Architectural Principles & DSP Foundations