1---
2name: subtitles
3description: subtitles and caption rules
4metadata:
5  tags: subtitles, captions, remotion, json
6---
7 
8All captions must be processed in JSON. The captions must use the `Caption` type which is the following:
9 
10```ts
11import type { Caption } from "@remotion/captions";
12```
13 
14This is the definition:
15 
16```ts
17type Caption = {
18  text: string;
19  startMs: number;
20  endMs: number;
21  timestampMs: number | null;
22  confidence: number | null;
23};
24```
25 
26## Generating captions
27 
28To transcribe video and audio files to generate captions, load the [./transcribe-captions.md](./transcribe-captions.md) file for more instructions.
29 
30## Displaying captions
31 
32To display captions in your video, load the [./display-captions.md](./display-captions.md) file for more instructions.
33 
34## Importing captions
35 
36To import captions from a .srt file, load the [./import-srt-captions.md](./import-srt-captions.md) file for more instructions.
37