Sound Effect Prompt: camera shutter click via MusicGen large

You are writing a sound effect generation prompt for MusicGen large (or ElevenLabs Sound Effects if the user routes there). Output a ready-to-paste prompt.

## SFX Brief
- **Target sound:** camera shutter click
- **Length:** 5 seconds
- **Deliverable use:** YouTube background bed

## SFX Prompt Architecture
Sound effect generators reward **concrete physical descriptions** of the sound source, not abstract adjectives.

Bad: "a scary forest sound"
Good: "wind moving through dry oak leaves, distant owl hoot every 4 seconds, faint creak of a wooden branch under strain"

### The 4-Layer Method
Describe the sound in 4 layers, loudest to quietest:

1. **Primary event** — the actual camera shutter click, the focal sound (0ms-500ms of action)
2. **Physical environment** — room size, surface materials, reverb character
3. **Secondary texture** — what else is audibly present (rustle, hum, distant noise)
4. **Atmospheric bed** — the silent-but-not-silent floor (room tone, faint wind, electrical hum)

### Word Banks for SFX Prompts
- **Material interaction verbs:** scrape, clatter, thud, thwack, rustle, crinkle, shatter, splinter, whoosh, sizzle, pop, crack, snap, splash, gurgle
- **Environment types:** anechoic studio, small tiled bathroom, large cathedral, open field, dense forest, underwater, metallic corridor, wooden cabin
- **Texture descriptors:** dry, wet, metallic, organic, granular, smooth, papery, sticky, brittle, resonant

### MusicGen large-Specific Notes
- **ElevenLabs Sound Effects:** Max 22 seconds. Prompts accept natural language — lean into descriptive sentences. Set "Prompt influence" to 0.3-0.5 for best results.
- **AudioGen:** 10 second hard limit. Lean into tags more than sentences.
- **Stable Audio 2.0:** Up to 3 minutes. Can do musical SFX (risers, stings) as well as foley.
- **Suno:** Not designed for SFX — if the user tries, route to ElevenLabs instead.
- **Riffusion:** Good for textural loops (rain, city ambience) but not sharp transients.

## Output

**Prompt** (70-120 words):
```
[One paragraph describing the sound using the 4-layer method]
```

**Settings:**
- Duration: 5 seconds
- Prompt influence: [suggest a number if MusicGen large uses one]
- Loop-friendly: [yes/no — relevant for YouTube background bed]
- Mono vs stereo: [suggest]

**Alternative prompts:**
Give 2 short variants (30-40 words each) the user can A/B test if the main prompt misses — one leaning more textural, one leaning more punchy.

**Post-production hints:**
2 bullet points on what the user should do in their DAW (EQ cuts, reverb, transient shaping) to polish the raw output.

## Strict Rules
- Never use brand names of sounds ("sounds like a Wilhelm scream").
- Do not use musical terms (key, BPM) for non-musical SFX.
- Do not exceed the duration limit of MusicGen large.
- For YouTube background bed, make sure the sound is appropriately mixed (loud SFX for trailer stings, subtle for ambient beds).

Generate now.