# `PlayOptions.speed`

> Contract 2.0.0 · package sha256 `a857eca95b35921109faf997094bb4192f12527d9d0fcd4be7e97f06425bad6e` · generated from `configurator-runtime.d.ts` by `services/onsite-scripter/scripts/build-contract-docs.mjs`; edit the source, not this file.

Property of [`PlayOptions`](PlayOptions.md) · stable · since 2.0.0

```ts
speed?: number;
```

Playback rate; 1 is authored speed. A full play takes `ClipInfo.durationMs / speed` ms, so `speed: durationMs / 1300` plays any clip in 1.3 s.

**Default:** 1

## Generic-API test (spec 3.1)

| Rule | Result |
| --- | --- |
| 1. Neutral name | pass: `speed` names no product |
| 2. A precedent | pass: [glTF 2.0 animations](https://registry.khronos.org/glTF/specs/2.0/glTF-2.0.html#animations) (row `G52`) |
| 3. Two apps, or labs | one app recorded: app-fc07850558 (spec 3.1 rule 3 asks for two, or labs) |
| 4. The cheaper fix first | decided per need in Appendix B: rows `G52` at tier labs (a member only where no rule, data, asset or app code serves the need) |