> For the complete documentation index, see [llms.txt](https://docs.apryse.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.apryse.com/web/video/integrate-audio.md).
# Integrate Webviewer Audio using JavaScript
Integrate Webviewer Audio using JavaScript with ease. Learn how to seamlessly incorporate audio features into your web application. Explore a step-by-step guide for successful integration. The Apryse
{% hint style="info" %}
New licenses for WebViewer Video are no longer offered.
{% endhint %}
## Initial setup
Before you begin, make sure your development environment includes [Node.js](https://nodejs.org/en/) and [npm](https://www.npmjs.com/get-npm/).
## Install
{% tabs %}
{% tab title="Shell" %}
{% code lineNumbers="true" %}
```sh
npm install @pdftron/webviewer-video
npm install @pdftron/webviewer-audio
```
{% endcode %}
{% endtab %}
{% endtabs %}
## How to use
Here is an example of how WebViewer, Webviewer-video and WebViewer-audio could be integrated into your application.
{% tabs %}
{% tab title="JavaScript" %}
{% code lineNumbers="true" %}
```js
import React, { useRef, useEffect } from 'react';
import WebViewer from '@pdftron/webviewer';
import { initializeVideoViewer } from '@pdftron/webviewer-video';
import {
Waveform,
initializeAudioViewer
} from '@pdftron/webviewer-audio';
const App = () => {
const viewer = useRef(null);
const videoUrl = 'https://pdftron.s3.amazonaws.com/downloads/pl/video/video.mp4';
useEffect(() => {
WebViewer(
{
path: '/webviewer/lib',
},
viewer.current,
).then(async instance => {
await initializeAudioViewer(
instance,
{ license },
);
// Extends WebViewer to allow loading media files (.mp3, .mp4, ogg, webm, etc.)
const {
loadVideo,
} = await initializeVideoViewer(
instance,
{
license: '---- Insert commercial license key here after purchase ----',
AudioComponent: Waveform,
cacheAudioWaveform: false,
}
);
// Load a video at a specific url. Can be a local or public link
// If local it needs to be relative to lib/ui/index.html.
// Or at the root. (eg '/video.mp4')
// A unique fileId should be generated for each url for audio caching to work properly
loadVideo(videoUrl, { fileId: 'testId' });
});
}, []);
return (
);
}
export default App;
```
{% endcode %}
{% endtab %}
{% endtabs %}
Also see the [React sample](https://github.com/ApryseSDK/webviewer-video-sample/), for a complete solution, with further customizations.
---
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