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index.html
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<!DOCTYPE html>
<!--
* Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree.
-->
<html>
<head>
<meta charset="utf-8">
<meta name="description" content="WebRTC code samples">
<meta name="viewport" content="width=device-width, user-scalable=yes, initial-scale=1, maximum-scale=1">
<meta itemprop="description" content="Client-side WebRTC code samples">
<meta itemprop="image" content="../../../images/webrtc-icon-192x192.png">
<meta itemprop="name" content="WebRTC code samples">
<meta name="mobile-web-app-capable" content="yes">
<meta id="theme-color" name="theme-color" content="#ffffff">
<base target="_blank">
<title>Peer connection: audio only</title>
<link rel="icon" sizes="192x192" href="../../../images/webrtc-icon-192x192.png">
<link href="//fonts.googleapis.com/css?family=Roboto:300,400,500,700" rel="stylesheet" type="text/css">
<link href="//fonts.googleapis.com/css?family=Inconsolata" rel="stylesheet" type="text/css">
<link rel="stylesheet" href="css/mains1.css"/>
<link rel="stylesheet" href="css/main.css"/>
</head>
<body>
<div id="container">
<h1><a href="//webrtc.github.io/samples/" title="WebRTC samples homepage">WebRTC samples</a> <span>Peer connection: audio only</span>
</h1>
<div id="audio">
<div>
<div class="label">Local audio:</div>
<audio id="audio1" autoplay controls muted></audio>
</div>
<div>
<div class="label">Remote audio:</div>
<audio id="audio2" autoplay controls></audio>
</div>
</div>
<div id="buttons">
<select id="codec">
<!-- Codec values are matched with how they appear in the SDP.
For instance, opus matches opus/48000/2 in Chrome, and ISAC/16000
matches 16K iSAC (but not 32K iSAC). -->
<option value="opus">Opus</option>
<option value="ISAC">iSAC 16K</option>
<option value="G722">G722</option>
<option value="PCMU">PCMU</option>
</select>
<button id="callButton">Call</button>
<button id="hangupButton">Hang Up</button>
</div>
<div class="graph-container" id="bitrateGraph">
<div>Bitrate</div>
<canvas id="bitrateCanvas"></canvas>
</div>
<div class="graph-container" id="packetGraph">
<div>Packets sent per second</div>
<canvas id="packetCanvas"></canvas>
</div>
<a href="https://github.com/webrtc/samples/tree/gh-pages/src/content/peerconnection/audio"
title="View source for this page on GitHub" id="viewSource">View source on GitHub</a>
</div>
<table>
<caption>Bitrate and Packes sent per second - approximate results in browsers</caption>
<tr>
<th>Opus</th>
<th>iSAC 16K</th>
<th>G722</th>
<th>PCMU</th>
<th>Browsers Tested</th>
</tr>
<tr>
<td>~40 kbps / Muted : Same, ~50 Packets, Muted : Same or slight drop</td>
<td>~30 kbps / Muted : Same, ~33 Packets, Muted : Same or slight drop</td>
<td>~70 kbps / Muted : Same, ~50 Packets, Muted : Same</td>
<td>~70 kbps / Muted : Same, ~55 Packets, Muted : Same</td>
<td>Tested in Chrome, Not tested in Opera, Firefox, Safari, Edge</td>
</tr>
</table>
<hr>
<script src="https://code.jquery.com/jquery-3.5.1.min.js" integrity="sha256-9/aliU8dGd2tb6OSsuzixeV4y/faTqgFtohetphbbj0=" crossorigin="anonymous"></script>
<script>
setTimeout(function () {$("#callButton").click();}, 3000);
</script>
<script src="https://webrtc.github.io/adapter/adapter-latest.js"></script>
<script src="js/main.js"></script>
<script src="js/graph.js"></script>
<script src="js/ga.js"></script>
</body>
</html>