1---
2name: get-audio-duration
3description: Getting the duration of an audio file in seconds with Mediabunny
4metadata:
5  tags: duration, audio, length, time, seconds, mp3, wav
6---
7 
8# Getting audio duration with Mediabunny
9 
10Mediabunny can extract the duration of an audio file. It works in browser, Node.js, and Bun environments.
11 
12## Getting audio duration
13 
14```tsx title="get-audio-duration.ts"
15import { Input, ALL_FORMATS, UrlSource } from "mediabunny";
16 
17export const getAudioDuration = async (src: string) => {
18  const input = new Input({
19    formats: ALL_FORMATS,
20    source: new UrlSource(src, {
21      getRetryDelay: () => null,
22    }),
23  });
24 
25  const durationInSeconds = await input.computeDuration();
26  return durationInSeconds;
27};
28```
29 
30## Usage
31 
32```tsx
33const duration = await getAudioDuration("https://remotion.media/audio.mp3");
34console.log(duration); // e.g. 180.5 (seconds)
35```
36 
37## Using with staticFile in Remotion
38 
39Make sure to wrap the file path in `staticFile()`:
40 
41```tsx
42import { staticFile } from "remotion";
43 
44const duration = await getAudioDuration(staticFile("audio.mp3"));
45```
46 
47## In Node.js and Bun
48 
49Use `FileSource` instead of `UrlSource`:
50 
51```tsx
52import { Input, ALL_FORMATS, FileSource } from "mediabunny";
53 
54const input = new Input({
55  formats: ALL_FORMATS,
56  source: new FileSource(file), // File object from input or drag-drop
57});
58```
59