Getting audio duration with Mediabunny

Mediabunny can extract the duration of an audio file. It works in browser, Node.js, and Bun environments.

Getting audio duration

```tsx title="get-audio-duration.ts" import { Input, ALL_FORMATS, UrlSource } from "mediabunny";

export const getAudioDuration = async (src: string) => { const input = new Input({ formats: ALL_FORMATS, source: new UrlSource(src, { getRetryDelay: () => null, }), });

const durationInSeconds = await input.computeDuration(); return durationInSeconds; };

## Usage

const duration = await getAudioDuration("https://remotion.media/audio.mp3"); console.log(duration); // e.g. 180.5 (seconds)

## Using with staticFile in Remotion

Make sure to wrap the file path in `staticFile()`:

import { staticFile } from "remotion";

const duration = await getAudioDuration(staticFile("audio.mp3"));

## In Node.js and Bun

Use `FileSource` instead of `UrlSource`:

import { Input, ALL_FORMATS, FileSource } from "mediabunny";

const input = new Input({ formats: ALL_FORMATS, source: new FileSource(file), // File object from input or drag-drop });