Exporting Audio - Remotion

If you export your video from Remotion, the audio is automatically included.
Additionally, this page shows you can export the audio only, or omit the audio, and how the export process works.

Audio Only

Exporting as mp3, aac and wav is supported:

Command Line

To render only the audio via CLI, specify an extension when exporting via CLI:

npx remotion render src/index.ts my-comp out/audio.mp3

or use the --codec flag to automatically choose a good output file name:

npx remotion render src/index.ts my-comp --codec=mp3

`renderMedia()`

To render only the audio via the server-side rendering APIs, use renderMedia() and set the codec to an audio codec.

tsx

import {bundle} from '@remotion/bundler';
import {getCompositions, renderMedia} from '@remotion/renderer'; // The composition you want to render
import path from 'path';
const compositionId = 'HelloWorld';

// You only have to do this once, you can reuse the bundle.
const entry = './src/index';
console.log('Creating a Webpack bundle of the video');
const bundleLocation = await bundle(path.resolve(entry), () => undefined, {
  // If you have a Webpack override, make sure to add it here
  webpackOverride: (config) => config,
});

// Parametrize the video by passing arbitrary props to your component.
const inputProps = {
  foo: 'bar',
};

// Extract all the compositions you have defined in your project
// from the webpack bundle.
const comps = await getCompositions(bundleLocation, {
  // You can pass custom input props that you can retrieve using getInputProps()
  // in the composition list. Use this if you want to dynamically set the duration or
  // dimensions of the video.
  inputProps,
});

// Select the composition you want to render.
const composition = comps.find((c) => c.id === compositionId);

// Ensure the composition exists
if (!composition) {
  throw new Error(`No composition with the ID ${compositionId} found.
  Review "${entry}" for the correct ID.`);
}
const outputLocation = `out/${compositionId}.mp4`;

// ---cut---
await renderMedia({
  composition,
  serveUrl: bundleLocation,
  codec: 'mp3',
  outputLocation,
  inputProps,
});

`renderMediaOnLambda()`

To render only the audio via Lambda, use renderMediaOnLambda() and set the codec to an audio codec and imageFormat to none.

tsx

import {renderMediaOnLambda} from '@remotion/lambda';
// ---cut---

const {bucketName, renderId} = await renderMediaOnLambda({
  region: 'us-east-1',
  functionName: 'remotion-render-bds9aab',
  composition: 'MyVideo',
  serveUrl: 'https://remotionlambda-qg35eyp1s1.s3.eu-central-1.amazonaws.com/sites/bf2jrbfkw',
  inputProps: {},
  codec: 'mp3',
  imageFormat: 'none',
});

`renderMediaOnVercel()`

To render only the audio via Vercel, use renderMediaOnVercel() and set the codec to an audio codec and imageFormat to none.

tsx

// @module: es2022
// @target: es2022
import {renderMediaOnVercel, createSandbox} from '@remotion/vercel';
const sandbox = await createSandbox();
// ---cut---

const {sandboxFilePath} = await renderMediaOnVercel({
  sandbox,
  compositionId: 'MyVideo',
  inputProps: {},
  codec: 'mp3',
  imageFormat: 'none',
});

Lambda CLI

To render via the Lambda CLI, use the npx remotion lambda render command and pass the --codec flag:

npx remotion lambda render --codec=mp3 https://remotionlambda-qg35eyp1s1.s3.eu-central-1.amazonaws.com/sites/bf2jrbfkw my-comp

Excluding audio

Command Line

Pass --muted to not export audio.

npx remotion render --muted

`renderMedia()`

Pass muted: true to renderMedia() to mute a render.

tsx

import {bundle} from '@remotion/bundler';
import {getCompositions, renderMedia} from '@remotion/renderer'; // The composition you want to render
import path from 'path';
const compositionId = 'HelloWorld';

// You only have to do this once, you can reuse the bundle.
const entry = './src/index';
console.log('Creating a Webpack bundle of the video');
const bundleLocation = await bundle(path.resolve(entry), () => undefined, {
  // If you have a Webpack override, make sure to add it here
  webpackOverride: (config) => config,
});

// Parametrize the video by passing arbitrary props to your component.
const inputProps = {
  foo: 'bar',
};

// Extract all the compositions you have defined in your project
// from the webpack bundle.
const comps = await getCompositions(bundleLocation, {
  // You can pass custom input props that you can retrieve using getInputProps()
  // in the composition list. Use this if you want to dynamically set the duration or
  // dimensions of the video.
  inputProps,
});

// Select the composition you want to render.
const composition = comps.find((c) => c.id === compositionId);

// Ensure the composition exists
if (!composition) {
  throw new Error(`No composition with the ID ${compositionId} found.
  Review "${entry}" for the correct ID.`);
}
const outputLocation = `out/${compositionId}.mp4`;

// ---cut---
await renderMedia({
  composition,
  serveUrl: bundleLocation,
  codec: 'h264',
  muted: true,
  outputLocation,
  inputProps,
});

`renderMediaOnLambda()`

Pass muted: true to renderMediaOnLambda() to mute the render.

tsx

import {renderMediaOnLambda} from '@remotion/lambda';
// ---cut---

const {bucketName, renderId} = await renderMediaOnLambda({
  region: 'us-east-1',
  functionName: 'remotion-render-bds9aab',
  composition: 'MyVideo',
  serveUrl: 'https://remotionlambda-qg35eyp1s1.s3.eu-central-1.amazonaws.com/sites/bf2jrbfkw',
  inputProps: {},
  codec: 'h264',
  muted: true,
});

`renderMediaOnVercel()`

Pass muted: true to renderMediaOnVercel() to mute the render.

tsx

// @module: es2022
// @target: es2022
import {renderMediaOnVercel, createSandbox} from '@remotion/vercel';
const sandbox = await createSandbox();
// ---cut---

const {sandboxFilePath} = await renderMediaOnVercel({
  sandbox,
  compositionId: 'MyVideo',
  inputProps: {},
  codec: 'h264',
  muted: true,
});

Lambda CLI

Pass --muted to npx remotion lambda render to mute a render when using the Lambda Command Line.

npx remotion lambda render --muted https://remotionlambda-qg35eyp1s1.s3.eu-central-1.amazonaws.com/sites/bf2jrbfkw my-comp