---
title: "Sprint 13 — Audio Briefing"
description: "NPC conversation murmur asset, World SFX bus wiring"
type: sprint
status: archived
sprint: 13
team: "audio"
---

# Sprint 13: Sound — Audio Tasks

**Goal:** Wire the full audio architecture end-to-end — AudioManager, zone crossfades, dip profiles, recognition chime, and conversation murmur — and complete v0.1 content authoring so opening hooks, tutorial monologue, and all content packs are done.

**Branch:** `audio`
**Agents:** Inigo (sound design)

## Carry-over from Sprint 12

None. Sprint 12 audio tickets done (#440 interaction audio assets, #453 Sprint 7 asset revision).

## New Tickets

| # | Title | Blocked by |
|---|-------|------------|
| #532 | NPC conversation murmur asset — event-driven World SFX bus wiring | — |

Use `db/connectors/ticket show <id>` for full details.

## Key Decisions

- `decisions/perception.md` — D-072 (universal event-driven conversation murmur), D-071 (ListeningFocus boost — eavesdrop conspicuousness), D-038 (audio in v0.1 scope — 8 files via Stable Audio Open)
- `decisions/content.md` — D-074 (audio aesthetic identity — insert-tech vs organic)

## Notes

- **#532 — NPC conversation murmur asset:** Produce a single universal NPC proximity murmur asset via Stable Audio Open per D-072. This is NOT a zone-specific asset — zone ambient determines conspicuousness naturally (bar's dense ambient buries it, corridor's sparse ambient exposes it). The asset should feel like: human voices in an adjacent room — direction and cadence distinguishable, words not. Duration target: 4-8s loopable or a set of short one-shot clips (2-3s each). Route: World SFX bus. Aesthetic per D-074: the audio identity pairs "insert-tech" (synthetic, lattice-flavored for UI/insert sounds) with "organic" (human, environmental for world sounds). The murmur is an organic world sound — warm, human, lived-in. No lattice processing on this one. Deliver to `audio/` directory as `sfx_npc_murmur.ogg` (or similar descriptive name matching the directory-scan pattern the client expects). Signal to client team when asset is committed so they can unblock #533.

## Dependency Chain

```
#532 (murmur asset) → unblocks client #533 (murmur wiring)
```

Standalone. Can start immediately.

## PR Workflow

When ready to submit, create a PR with `tea` CLI. All flags are required to avoid TTY prompts (see CLAUDE.md "Gitea access" section):

```bash
tea pr create --repo jpmschweitzer/settled-reach --login schweitz --title "feat(audio): NPC conversation murmur asset" --description "body" --base main --head audio
```