# Built-in sounds

Use them as a clip's `sound` ({ "name": "<id>", "at": "start" | "end" }) or as an audio clip (`"src": "sfx:<id>"`).
They are synthesised by the player: nothing to download.

| id | length | what it is |
| --- | --- | --- |
| `whoosh` | 0.55 s | Air rushing past: something flies in. |
| `whoosh-out` | 0.5 s | Air falling away: something leaves. |
| `swish` | 0.28 s | A quick, light swipe: wipes and slides. |
| `slide` | 0.3 s | A soft upward glide. |
| `spin` | 0.7 s | A turning flutter: spins and flips. |
| `pop` | 0.14 s | A bright pop: things that appear with a bounce. |
| `soft-pop` | 0.18 s | A rounder, quieter pop. |
| `click` | 0.05 s | A crisp interface click. |
| `tick` | 0.05 s | A tiny high tick: counters and small steps. |
| `tap` | 0.1 s | A wooden tap. |
| `typing` | 1.15 s | A run of key presses: typewriter text. |
| `beep` | 0.16 s | A short soft beep. |
| `impact` | 0.9 s | A deep, cinematic hit: slams and big reveals. |
| `thud` | 0.35 s | A soft, low landing. |
| `sub-hit` | 1.3 s | A long, felt-more-than-heard boom. |
| `drop` | 0.6 s | A falling tone: something drops away. |
| `glitch` | 0.32 s | Digital stutter: scrambles and glitches. |
| `chime` | 1.6 s | A clear bell: a reveal, a highlight. |
| `sparkle` | 0.9 s | Glittering high notes: shine and magic. |
| `success` | 0.5 s | Two rising notes: done, correct, unlocked. |
| `notify` | 0.6 s | A friendly two-note ding. |
| `riser` | 1.6 s | Tension building up to a moment. |
| `swell` | 2 s | A soft rise and fall: openings and transitions. |
| `shimmer` | 1.6 s | An airy, glowing hum: ambient and backgrounds. |
| `reveal` | 1.2 s | A whoosh that blooms into a bell. |