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<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
<link rel="shortcut icon" type="image/png" href="assets/icon.png">
<title>Recorder H5: 用于html5网页中的前端录音解决方案，此录音插件支持mp3 wav pcm amr ogg webm格式，支持实时上传 语音识别 音频可视化 实时处理，可在PC端 移动端 Android iOS 原生App中跨平台使用</title>
<script>
console.log(
["%c "
," "
," "
," %c REC WARNING %c "
," "
," "
,"%c 请不要试图阅读本demo的源码，不然你会去想这么丑的代码是谁写的 "
," 本文件包括附属的js文件的代码是经过长时间积累出来的 "
," 代码虽然已经分层/分开写了，也许者作者也已经不认识了 "
," "
," 如果想要快速入门，请阅读github项目内首页README文档 "
," 参考文档内的快速使用部分，简单快捷高效 "
," "
," 请不要试图阅读本demo的源码，正常情况下意义不大 "
," "
," "
,""].join("\n"),
'background: #000; font-size: 18px; line-height:1; font-family: monospace',
'background: #f33; font-size: 18px; line-height:1; font-family: monospace; color: #eee; text-shadow:0 0 1px #fff',
'background: #000; font-size: 18px; line-height:1; font-family: monospace',
'background: #000; font-size: 18px; line-height:1; font-family: monospace; color: #ddd; text-shadow:0 0 2px #fff'
)
</script>
</head>
<body>
<div class="main">
<!--加载核心库，其他类型支持库在下面根据用户点击选择加载-->
<script src="src/recorder-core.js"></script>
<!--加载可选扩展库-->
<script src="src/extensions/waveview.js"></script>
<script src="src/extensions/wavesurfer.view.js"></script>
<script src="src/extensions/lib.fft.js"></script>
<script src="src/extensions/frequency.histogram.view.js"></script>
<script src="src/extensions/sonic.js"></script>
<script src="src/extensions/dtmf.encode.js"></script>
<script src="src/extensions/dtmf.decode.js"></script>
<!--加载PlayBuffer-->
<script src="assets/runtime-codes/fragment.playbuffer.js"></script>
<style>
body{
word-wrap: break-word;
word-break: break-all;
background:#f5f5f5 center top no-repeat;
background-size: auto 680px;
}
pre{
white-space:pre-wrap;
}
label,label *{
cursor: pointer;
}
label:hover{
color:#06c;
}
a{
text-decoration: none;
color:#06c;
}
a:hover{
color:#f00;
}
.main{
max-width:700px;
margin:0 auto;
padding-bottom:80px
}
.mainBox{
margin-top:12px;
padding: 12px;
border-radius: 6px;
background: #fff;
--border: 1px solid #f60;
box-shadow: 2px 2px 3px #aaa;
}
.btns button,.mainBtn{
display: inline-block;
cursor: pointer;
border: none;
border-radius: 3px;
background: #f60;
color:#fff;
padding: 0 15px;
margin:3px 20px 3px 0;
line-height: 36px;
height: 36px;
overflow: hidden;
vertical-align: middle;
}
.btns button:active,.mainBtn:active{
background: #f00;
}
.recwaveChoice{
cursor: pointer;
display:inline-block;
vertical-align: bottom;
border-right:1px solid #ccc;
background:#ddd;
line-height:28px;
font-size:12px;
color:#666;
padding:0 5px;
}
.recwaveChoice:first-child{
border-radius: 99px 0 0 99px;
}
.recwaveChoice:last-child{
border-radius: 0 99px 99px 0;
border-right:none;
}
.recwaveChoice.slc,.recwaveChoice:hover{
background:#f60;
color:#fff;
}
.lb{
display:inline-block;
vertical-align: middle;
background:#00940e;
color:#fff;
font-size:14px;
padding:2px 8px;
border-radius: 99px;
}
.pd{
padding:0 0 6px 0;
}
</style>
<script>
//兼容环境
var PageLM="2023-02-01 21:37";
function RandomKey(){
return "randomkey"+(RandomKey.idx++);
};
RandomKey.idx=0;
//乐此不疲，古董浏览器，仅保证基本的可执行不代码异常
if(!Date.now)Date.now=function(){return new Date().getTime()};
if(!window.localStorage){window.localStorage={
loadMinJs:/loadMinJs/.test(location.href)?"1":"0"
}};
</script>
<script src="assets/ztest-jquery.min-1.9.1.js"></script>
<div class="demoHead mainBox">
<style>
.navItem{
display:inline-block;
width:45%;
max-width:300px;
vertical-align: top;
background:#eee;
border-bottom: 5px solid #ccc;
box-shadow: 2px 2px 3px #ddd;
color:#666;
text-decoration:none;
border-radius: 8px;
padding: 0 5px 3px;
}
.navItem.slc{
border-bottom: 5px solid #00940e;
color:#f60;
}
.navItem:hover{
color:#d44;
}
.navTitle{
text-align: center;
font-size:18px;
font-weight: bold;
}
.navItem.slc .navDesc{
color:#00940e;
}
.navDesc{
font-size:12px;
}
</style>
<a class="navItem slc" style="margin-right:2%;" href="https://xiangyuecn.gitee.io/recorder/">
<div class="navTitle">Recorder H5</div>
<div class="navDesc">Recorder H5使用简单，功能丰富，支持PC、Android、iOS 14.3+</div>
</a>
<a class="navItem" href="https://jiebian.life/web/h5/github/recordapp.aspx">
<div class="navTitle" style="text-decoration: line-through">RecordApp</div>
<div class="navDesc">[即将废弃]支持：Recorder + Hybrid App + 低版本iOS上的微信</div>
</a>
<div style="margin-top:8px">
<span class="lb">源码仓库 :</span>
<a href="https://github.com/xiangyuecn/Recorder" target="_blank">GitHub</a>
| <a href="https://gitee.com/xiangyuecn/Recorder" target="_blank">Gitee</a>
<span class="lb">更多Demo :</span> <a href="https://xiangyuecn.gitee.io/recorder/assets/工具-代码运行和静态分发Runtime.html" target="_blank">Demo列表(可编辑)</a>
| <a href="https://xiangyuecn.gitee.io/recorder/assets/demo-vue/" target="_blank">H5 vue</a>
| <a href="https://xiangyuecn.gitee.io/recorder/assets/demo-ts/" target="_blank">H5 ts</a>
<div style="margin-top:6px;">
<span class="lb">QuickStart :</span>
<a href="https://xiangyuecn.gitee.io/recorder/QuickStart.html" target="_blank">QuickStart.html</a>
<span style="font-size:12px;color:#999">(Copy即用，更适合入门学习)</span>
<span class="lb">老版本 :</span> <a href="https://xiangyuecn.gitee.io/recorder/assets/工具-GitHub页面历史版本访问.html#url=xiangyuecn:Recorder@1.0.19120600,/" target="_blank">切换到老版本测试</a>
</div>
</div>
</div>
<!-- begin 开始copy源码 -->
<div class="demoMain">
<div class="mainBox">
<div class="pd">
<span class="lb">类型 :</span> <span class="types">
<label><input type="radio" name="type" value="mp3" engine="mp3,mp3-engine" min="/recorder.mp3.min" class="initType" checked>mp3</label>
<label><input type="radio" name="type" value="wav" engine="wav" min="/recorder.wav.min">wav</label>
<label><input type="radio" name="type" value="pcm" engine="pcm" min=",pcm" addload="wav">pcm</label>
<label><input type="radio" name="type" value="ogg" engine="beta-ogg,beta-ogg-engine" min=",beta-ogg">ogg(beta)</label>
<label><input type="radio" name="type" value="webm" engine="beta-webm" min=",beta-webm">webm(beta)</label>
<label><input type="radio" name="type" value="amr" engine="beta-amr,beta-amr-engine" min=",beta-amr" addload="wav">amr(beta)</label>
</span>
<label><input type="checkbox" class="loadMinJs">请求压缩版</label>
</div>
<div class="pd">
<span class="lb">提示 :</span> <span class="typeTips">-</span>
</div>
<div class="pd">
<span class="lb">比特率 :</span> <input type="text" class="bit" value="16" style="width:60px"> kbps，越大音质越好
</div>
<div>
<span class="lb">采样率 :</span> <input type="text" class="sample" value="16000" style="width:60px"> hz，越大细节越丰富
</div>
</div>
<div class="mainBox">
<div class="pd btns">
<div>
<button onclick="recopen()" style="margin-right:10px">打开录音,请求权限</button>
<button onclick="recclose()" style="margin-right:0">关闭录音,释放资源</button>
</div>
<button onclick="recstart()">录制</button>
<button onclick="recstop()" style="margin-right:80px">停止</button>
<span style="display: inline-block;">
<button onclick="recpause()">暂停</button>
<button onclick="recresume()">继续</button>
</span>
<span style="display: inline-block;">
<button onclick="recPlayLast()">播放</button>
<button onclick="recUploadLast()">上传</button>
</span>
</div>
<div class="pd recpower">
<div style="height:40px;width:300px;background:#999;position:relative;">
<div class="recpowerx" style="height:40px;background:#0B1;position:absolute;"></div>
<div class="recpowert" style="padding-left:50px; line-height:40px; position: relative;"></div>
</div>
</div>
<div class="pd">
<button onclick="recstop2()" class="batEnc">批量编码</button>
<input type="text" class="bits" value="8 to 96 step 8">kbps 测试音质用的，除比特率外其他参数可调整
</div>
<div class="pd waveBox">
<div style="border:1px solid #ccc;display:inline-block"><div style="height:100px;width:300px;" class="recwave"></div></div>
<span style="font-size:0">
<span class="recwaveChoice" key="WaveView">WaveView</span>
<span class="recwaveChoice" key="SurferView">SurferView</span>
<span class="recwaveChoice" key="Histogram1">Histogram1</span>
<span class="recwaveChoice" key="Histogram2">H...2</span>
<span class="recwaveChoice" key="Histogram3">H...3</span>
</span>
</div>
<div class="pd pcmPageHide">
<label><input type="checkbox" class="autoStopSet">开始录制后定时</label>
<input type="text" class="autoStopTime" value="60000" style="width:60px">ms自动停止录音，定时录音
</div>
<div class="pd pcmPageHide">
<label><input type="checkbox" class="takeoffEncodeChunkSet">接管编码器输出（takeoffEncodeChunk），切换后新打开录音生效</label>
</div>
<div class="pd pcmPageHide">
<label><input type="checkbox" class="realTimeSendSet">模拟实时编码传输（H5版语音通话聊天）</label>
，发送间隔<input type="text" class="realTimeSend" value="996" style="width:60px">ms
<div class="webrtcView" style="display:none;"></div>
</div>
<div class="pcmPageHide">
<label><input type="checkbox" class="asrSet">实时语音识别、音频文件转文字，ASR</label>
<div class="asrView" style="display:none;"></div>
</div>
</div>
<div class="mainBox">
<audio class="recPlay" controls style="display:none;width:100%"></audio>
<div class="reclog"></div>
</div>
<div class="mainBox">
<div>
<span class="lb">切换麦克风 :</span>
<select class="trackSet_device"></select>
从未请求过录音权限时，可能无法正常拉取设备列表，打开一次录音后可尝试
<button onclick="trackSetQueryDeviceList(1)">重新拉取设备</button>
</div>
<div>
<span class="lb">noiseSuppression :</span>
<select class="trackSet_noise">
<option value="1">true</option>
<option value="2" selected>false</option>
</select>
降噪配置开关（默认禁用）
</div>
<div>
<span class="lb">echoCancellation :</span>
<select class="trackSet_aec">
<option value="1">true</option>
<option value="2" selected>false</option>
</select>
回声消除配置开关（默认禁用）
</div>
<div>
<span class="lb">autoGainControl :</span>
<select class="trackSet_gain">
<option value="">不设置</option>
<option value="1">true</option>
<option value="2">false</option>
</select>
自动增益配置开关
</div>
<div>
<span style="color:#f60">以上参数设置后需重新打开录音</span>；均为set中的audioTrackSet高级配置，会直接传递给浏览器的getUserMedia方法，不同浏览器的支持程度不同，并不一定会生效；
<span style="color:#aaa">移动端打开降噪、回声消除可能会表现的很怪异（包括系统播放声音变小），所以默认禁用，使用原声录制（高音甜、中音准、低音沉，总之一句话就是通透），如需降噪、回声消除请测试好后再开启</span>
</div>
</div>
<div class="mainBox">
<span class="lb">启用MediaRecorder :</span>
<label>
<input type="checkbox" class="enableWebMSet">启用
<span style="color:#f60">设置后需重新打开录音</span>
</label>
<div>音频采集连接方式：启用时尝试使用MediaRecorder.WebM.PCM，默认启用，未启用或者不支持时使用AudioWorklet或ScriptProcessor；通过设置Recorder.ConnectEnableWebM=false禁用。</div>
<div>
<span style="color:#0b1">使用MediaRecorder采集到的音频数据比其他方式更好，几乎不存在丢帧现象，所以音质明显会好很多，建议保持开启；</span>
<span style="color:#aaa">有些浏览器不支持录制PCM编码的WebM，如FireFox、低版本的Chrome，将依旧使用AudioWorklet或ScriptProcessor来连接采集。</span>
</div>
<div style="margin-top:12px;"></div>
<span class="lb">启用AudioWorklet :</span>
<label>
<input type="checkbox" class="enableWorkletSet">启用
<span style="color:#f60">设置后需重新打开录音，ConnectEnableWebM如果启用并且有效时，本参数将不起作用</span>
</label>
<div>音频采集连接方式：启用时尝试使用AudioWorklet，默认禁用，未启用或者不支持时使用ScriptProcessor；通过设置Recorder.ConnectEnableWorklet=true启用。</div>
<div>
已知：AudioWorklet在一定条件下会导致某些浏览器崩溃
<a href="assets/ztest_chrome_bug_AudioWorkletNode.html" target="_blank">测试</a>
(坑已填好)。
</div>
<div class="workletSetTips" style="color:#f60"></div>
</div>
<div class="mainBox">
<div style="color:#0ab;font-size:22px;font-weight:bold">
如需录音功能定制开发，网站、App、小程序、前端后端开发等需求，请加QQ群：①群 781036591、②群 748359095，口令recorder，联系群主（即作者），谢谢~
</div>
</div>
<div class="mainBox">
<div>
<span class="lb">变速变调 :</span>
<button onclick="resetSonicCtrl()">重置变速变调</button>
实时变速变调控制选项（Sonic 插件），可以边录边修改，同一时间应该只控制一个，否则叠加作用；请填写0.1-2.0的数字，1.0为不调整，当然超过2.0也是可以的（需手动输入）
</div>
<div class="sonicCtrlBox" style="margin:5px 0 0;position: relative;">
<style>
.sonicCtrlBox span{display:inline-block;width:80px;text-align:right;}
.sonicCtrlBox input{text-align:right;}
</style>
<div><span>Pitch:</span><input class="sonicCtrlInput sonicCtrlPitch" style="width:60px"> 男声<input type="range" class="sonicCtrlRange" min="0.1" max="2" step="0.1" value="1.0">女声，变调不变速（会说话的汤姆猫）</div>
<div><span>Speed:</span><input class="sonicCtrlInput sonicCtrlSpeed" style="width:60px"> 慢放<input type="range" class="sonicCtrlRange" min="0.1" max="2" step="0.1" value="1.0">快放，变速不变调（快放慢放），由于会增减PCM数据，实时处理时本功能需要禁用丢失补偿</div>
<div><span>Rate:</span><input class="sonicCtrlInput sonicCtrlRate" style="width:60px"> 缓重<input type="range" class="sonicCtrlRange" min="0.1" max="2" step="0.1" value="1.0">尖锐，变速变调，由于会增减PCM数据，实时处理时本功能需要禁用丢失补偿</div>
<div><span>Volume:</span><input class="sonicCtrlInput sonicCtrlVolume" style="width:60px"> 调低<input type="range" class="sonicCtrlRange" min="0.1" max="2" step="0.1" value="1.0">调高，调整音量</div>
<div style="border-top: 1px solid #eee;margin-top: 10px;"><span>处理缓冲:</span><input class="sonicCtrlInput sonicCtrlBuffer" style="width:60px">ms 0ms<input type="range" class="sonicCtrlRange sonicCtrlBufferRange" min="0" max="1000" step="100" value="200">1000ms，控制缓冲大小减少转换引入的杂音，0不缓冲</div>
<div><span>播放反馈:</span><input class="sonicCtrlInput sonicCtrlPlay" style="width:60px"> 不播放 <input type="range" class="sonicCtrlRange" min="0" max="1" step="1" value="1">实时播放反馈</div>
<div style="margin-top:10px"><button onclick="sonicRecTransform()">重新转换当前录音</button></div>
<div class="sonicCtrlBoxMask" style="position:absolute;top:0;left:0;width:100%;height:100%;background: rgba(0,0,0,.2);text-align: center;">
<div style="padding-top:50px;font-size: 30px;color: #fff;">挡住！防止滑块被误触</div>
<div><button onclick="sonicCtrlBoxMaskClose()">打开编辑</button></div>
</div>
</div>
</div>
<div class="mainBox">
<span class="lb">丢失补偿 :</span>
<label>
<input type="checkbox" class="disableEnvInFixSet">禁用设备卡顿时音频输入丢失补偿功能（通过别的程序大量占用CPU来模拟设备卡顿）
；<span style="color:#f60">设置后需重新打开录音</span>
；为set中disableEnvInFix配置值
</label>
<div><a href="https://github.com/xiangyuecn/Recorder/issues/51">issues#51</a>如果没有进行补偿，录音时设备偶尔出现很卡的情况下（CPU被其他程序大量占用），浏览器采集到的音频是断断续续的，导致10秒的录音可能就只返回了5秒的数据量，这个时候最终编码得到的音频时长明显变短，播放时的效果就像快放一样。未禁用时会在卡顿时自动补偿静默音频，消除了快放效果，但由于丢失的音频已被静默数据代替，听起来就是数据本身的断断续续的效果。在设备不卡时录音没有此问题。</div>
<div style="margin-top:12px;">
<span class="lb">临时调试选项 :</span>
<div><label>
<input type="checkbox" class="debugSet_D220626">
Recorder._D220626=true：ScriptProcessor立即退出回调，试图减少对浏览器录音的影响，有可能减少杂音，效果有待测试
</label></div>
<div><span style="color:#f60">以上参数设置后需重新打开录音</span>；这些参数仅供调试用，未来会被删除。</div>
</div>
<div style="margin-top:12px;">
<span class="lb">Destroy :</span>
<button onclick="callDestroy()">调用Recorder.Destroy()</button>
Destroy会关闭所有的全局资源，包括AudioContext，当录音出现问题时，可尝试Destroy一下重试
</div>
<div style="margin-top:12px;">
<span class="lb">阻止自动锁屏 :</span>
<button onclick="wakeLockClick()">调用navigator.wakeLock 或 静音循环播放视频</button>
手机锁屏后是否能录音不可控，直接简单粗暴的调用wakeLock接口 或 静音+循环播放视频来阻止锁屏，就是有点费电
</div>
<div style="margin-top:12px;">
<span class="lb">暴力测试 :</span>
<button onclick="testMultipleOpen5()">同时打开5个录音（并发调用open）</button>
，每个会录5秒，打开浏览器控制台查看日志
</div>
</div>
<div class="mainBox">
<div>
<span class="lb">DTMF电话按键信号 :</span>
DTMF解码、编码插件，可以方便的处理电话拨号按键信号，用于：电话录音软解，软电话实时提取DTMF按键信号、实时发送DTMF按键信号等。下面拨号盘可在录音时往录音文件中添加按键信息：
</div>
<div>
<style>
.dtmfTab td{padding: 15px 25px;border: 3px solid #ddd;cursor: pointer;user-select: none;}
.dtmfTab td:hover{background:#f60;opacity:.2;color:#fff}
.dtmfTab td:active{opacity:1}
</style>
<table onclick="sendDTMFKeyClick(event)" class="dtmfTab" style="border-collapse: collapse;text-align: center;border: 3px #ccc solid;">
<tr><td>1</td><td>2</td><td>3</td><td>A</td></tr>
<tr><td>4</td><td>5</td><td>6</td><td>B</td></tr>
<tr><td>7</td><td>8</td><td>9</td><td>C</td></tr>
<tr><td>*</td><td>0</td><td>#</td><td>D</td></tr>
</table>
</div>
<div style="margin:5px 0 0">
<div style="margin-top:10px">
<button onclick="decodeDTMF()">识别当前录音中的DTMF按键信息</button>
<button onclick="sendDTMFKeysClick()">发送*#1234567890#*</button>
</div>
</div>
</div>
<div class="mainBox">
<span class="lb">测试App :</span>
iOS Demo App：<a href="https://github.com/xiangyuecn/Recorder/tree/master/app-support-sample/demo_ios">下载源码</a> 自行编译
，Android Demo App：<a href="https://gitee.com/xiangyuecn/Recorder/blob/master/app-support-sample/demo_android/app-debug.apk.zip">下载APK</a> (40kb，删除.zip后缀，<a href="https://github.com/xiangyuecn/Recorder/tree/master/app-support-sample/demo_android">源码</a>)
</div>
<div class="mainBox">
<span class="lb">iframe兼容性 :</span> <button onclick="goiframe()">把页面放到IFrame里面测试权限请求</button>
测试在iframe里面请求录音权限的兼容性。最佳实践应该是让window.top(不适用于跨域)去加载Recorder，iframe里面使用top.Recorder；此测试未遵照此最佳实践，以模拟跨域iframe和同域下的复杂真实情况，H5录音在跨域时未设置相应策略权限永远是拒绝的
</div>
<div class="mainBox">
<span class="lb">音乐播放测试 :</span>
<button onclick="recplay2(this,'rec-4000ms-8kbps-16000hz.wav')">wav</button>
<button onclick="recplay2(this,'rec-4000ms-64kbps-16000hz.mp3')">mp3</button>
<button onclick="recplay2(this,'rec-4000ms-64kbps-16000hz.ogg')">ogg</button>
<button onclick="recplay2(this,'rec-4000ms-64kbps-16000hz.webm')">webm</button>
<button onclick="recplay2(this,'rec-4000ms-12.8kbps-8000hz.amr')">amr</button>
Audio对录音的影响测试（<a href="https://github.com/xiangyuecn/Recorder/issues/34">issues#34</a>）；iOS Safari如果未开始过录音并且播放了音乐，然后后续录音将会有问题；再现方法(<a href="https://xiangyuecn.gitee.io/recorder/assets/ztest_apple_developer_forums_getusermedia.html">test apple developer forums</a>)：刷新页面后首先先播放音乐，然后开始测试录音，会发现波形显示掉帧或者保持直线。另测试浏览器对音频的支持情况。
</div>
<div class="mainBox">
<span class="lb">视频播放测试 :</span>
<button onclick="videoTestPlay('')">播放mp4</button>
<script>var videoTestPlay=function(attr){
$('.videoTest').show().html('<video controls '+attr+' webkit-playsinline playsinline x5-video-player-type=\'h5\' src=\'assets/audio/movie-一代宗师-此一时彼一时.mp4.webm\' style=\'width:370px;height:160px\'></'+'video>').find('video')[0].play()
}</script>
Video对录音的影响测试（<a href="https://github.com/xiangyuecn/Recorder/issues/84">issues#84</a>）；iOS Safari可能出现先播放视频，然后再开始录音，会自动播放视频的声音，但并未再现。
<button onclick="$('.videoTest').show()">显示video</button>
<button onclick="$('.videoTest').hide()">隐藏video</button>
<button onclick="$('.videoTest').html('')">移除video</button>
<button onclick="videoTestPlay(' loop')">循环播放</button>
<button onclick="videoTestPlay(' loop muted')">静音循环播放</button>
<div class="videoTest"></div>
</div>
<div class="mainBox">
<span class="lb">浏览器环境情况 :</span>
<pre class="recinfoCode">
AudioContext:${"AudioContext" in window}
webkitAudioContext:${"webkitAudioContext" in window}
mediaDevices:${!!navigator.mediaDevices}
mediaDevices.getUserMedia:${!!(navigator.mediaDevices && navigator.mediaDevices.getUserMedia)}
navigator.getUserMedia:${!!navigator.getUserMedia}
navigator.webkitGetUserMedia:${!!navigator.webkitGetUserMedia}
AudioContext.scriptProcessor:{{
"createScriptProcessor" in (Recorder.Ctx||{})
|| "createJavaScriptNode" in (Recorder.Ctx||{})
}}
AudioContext.audioWorklet:{{"audioWorklet" in (Recorder.Ctx||{})}}
AudioWorkletNode:${"AudioWorkletNode" in window}
MediaRecorder:${"MediaRecorder" in window}
MediaRecorder.ondataavailable:${"MediaRecorder" in window && "ondataavailable" in MediaRecorder.prototype}
MediaRecorder.WebM.PCM:${"MediaRecorder" in window && MediaRecorder.isTypeSupported("audio/webm; codecs=pcm")}
URL:${location.href.replace(/#.+/g,"")}
UA:${navigator.userAgent}
Recorder库修改时间（有可能修改了忘改）：${Recorder.LM}
本页面修改时间（有可能修改了忘改）：${PageLM}
</pre>
<span class="lb">问题自检 :</span> 录音时注意观察灰色区域是否有绿色音量跳动，没有绿色跳动说明Recorder没有获取到声音数据。如果测试发现mp3没有声音，可以试一下wav格式，如果wav格式有声音，说明内置lamejs mp3编码器有问题。如果都没有，下载下来播放看看有没有。下载下来也没有声音可以反馈一下。
<div style="padding-top:20px">
如果浏览器不能正常录音，并且不确定是不是这个库的问题，可以到 <a href="https://xiangyuecn.gitee.io/recorder/assets/ztext_collab-project_videojs-record.html">assets/ztext_collab-project_videojs-record.html</a> 试一下。
</div>
</div>
<script>
function reclog(s,color){
var now=new Date();
var t=("0"+now.getHours()).substr(-2)
+":"+("0"+now.getMinutes()).substr(-2)
+":"+("0"+now.getSeconds()).substr(-2);
$(".reclog").prepend('<div style="color:'+(!color?"":color==1?"red":color==2?"#0b1":color)+'">['+t+']'+s+'</div>');
};
window.onerror=function(message, url, lineNo, columnNo, error){
//https://www.cnblogs.com/xianyulaodi/p/6201829.html
reclog('<span style="color:red">【Uncaught Error】'+message+'<pre>'+"at:"+lineNo+":"+columnNo+" url:"+url+"\n"+(error&&error.stack||"不能获得错误堆栈")+'</pre></span>');
};
</script>
<script>
var rec;
function recopen(){
if(rec&&Recorder.IsOpen()){//如果有老的，close掉重新开新的
recclose();
};
var type=$("[name=type]:checked").val();
var bit=+$(".bit").val();
var sample=+$(".sample").val();
cancelAutoStop();
window.waveStore={};
window.sonicAsync=null;
window.takeoffChunks=[];
var disableEnvInFixSet=$(".disableEnvInFixSet")[0].checked;
if(disableEnvInFixSet){
reclog("已禁用设备卡顿时音频输入丢失补偿，可以通过别的程序大量占用CPU来模拟设备卡顿，然后录音听听未补偿时的播放效果，然后再试试不禁用的效果");
};
var enableWebM=$(".enableWebMSet")[0].checked;
Recorder.ConnectEnableWebM=enableWebM;
if(!enableWebM){
reclog("已禁用MediaRecorder.WebM.PCM","#aaa");
}
var enableWorklet=$(".enableWorkletSet")[0].checked;
Recorder.ConnectEnableWorklet=enableWorklet;
if(enableWorklet){
reclog("已启用AudioWorklet"+(enableWebM?"（同时启用了MediaRecorder，AudioWorklet只会在MediaRecorder未生效时采用）":"")+"，"+workletTips,"#f60");
}
var debugSet_D220626=$(".debugSet_D220626")[0].checked;
Recorder._D220626=debugSet_D220626;
if(debugSet_D220626){
reclog("已启用临时调试选项：Recorder._D220626=true","#f60");
};
var audioTrackSet=null;
var trackSet_device=$(".trackSet_device").val();
var trackSet_noise=$(".trackSet_noise").val();
var trackSet_aec=$(".trackSet_aec").val();
var trackSet_gain=$(".trackSet_gain").val();
if(trackSet_device || trackSet_noise==1 || trackSet_aec==1 || trackSet_gain){
audioTrackSet={};
if(trackSet_device){
var device=DeviceList[+trackSet_device];
audioTrackSet.deviceId=device.deviceId;
audioTrackSet.groupId=device.groupId;
}
if(trackSet_noise){
audioTrackSet.noiseSuppression=+trackSet_noise==1;
}
if(trackSet_aec){
audioTrackSet.echoCancellation=+trackSet_aec==1;
}
if(trackSet_gain){
audioTrackSet.autoGainControl=+trackSet_gain==1;
}
reclog("已启用audioTrackSet配置："+JSON.stringify(audioTrackSet));
};
var realTimeSendSet=$(".realTimeSendSet")[0].checked;
var realTimeSendTime=+$(".realTimeSend").val();
var asrSet=$(".asrSet")[0].checked;
var takeoffEncodeChunkSet=$(".takeoffEncodeChunkSet")[0].checked;
rec=Recorder({
type:type
,bitRate:bit
,sampleRate:sample
,audioTrackSet:audioTrackSet
,disableEnvInFix:disableEnvInFixSet
,onProcess:function(buffers,powerLevel,duration,sampleRate,newBufferIdx,asyncEnd){
//优先进行pcm处理，可能会发生数据修改，对于需要大量运算的处理需要开启异步模式，onProcess返回true即可开启，异步操作完成后必须回调asyncEnd
//实时混合按键信号
if(dtmfMix){
var val=dtmfMix.mix(buffers, sampleRate, newBufferIdx);
if(val.newEncodes.length>0){
rec.PlayBufferDisable=true;
DemoFragment.PlayBuffer(rec,val.newEncodes[0].data,sampleRate);
};
};
//变速变调
var beginAsync=sonicProcess(rec,buffers,sampleRate,newBufferIdx,asyncEnd);
$(".recpowerx").css("width",powerLevel+"%");
$(".recpowert").text(formatMs(duration,1)+" / "+powerLevel);
//可视化图形绘制
if(waveStore.choice!=recwaveChoiceKey){
waveStore.choice=recwaveChoiceKey;
$(".recwave").html("").append(waveStore[recwaveChoiceKey].elem);
};
waveStore[recwaveChoiceKey].input(buffers[buffers.length-1],powerLevel,sampleRate);
//实时传输
if(realTimeSendSet&&window.realTimeSendTry){
realTimeSendTry(rec.set,realTimeSendTime,buffers,sampleRate);
};
//实时语音识别
if(asrSet&&window.asrInput){
asrInput(buffers,sampleRate,newBufferIdx);
};
return beginAsync;//返回true转成异步操作
}
,takeoffEncodeChunk:!takeoffEncodeChunkSet?null:function(chunkBytes){
takeoffChunks.push(chunkBytes);
}
});
dialogInt=setTimeout(function(){//定时8秒后打开弹窗，用于监测浏览器没有发起权限请求的情况，在open前放置定时器利于收到了回调能及时取消（不管open是同步还是异步回调的）
showDialog();
},8000);
rec.open(function(){
dialogCancel();
var typeSize="，<span style='border:1px solid #bbb;background:#f5f5f5;'>";
if(type=="wav"){
typeSize+="1秒的wav文件大小(字节)估算公式：采样率 × 位数 ÷ 8，当前："+sample+"*"+bit+"/8≈"+(sample*bit/8)+"b/s";
}else if(type=="mp3"){
typeSize+="1秒的mp3文件大小(字节)估算公式：比特率 × 1000 ÷ 8，当前："+bit+"*1000/8≈"+(bit*1000/8)+"b/s";
}else{
typeSize="";
};
typeSize&&(typeSize+="</span>");
reclog("<span style='color:#0b1'>已打开:"+type+" "+sample+"hz "+bit+"kbps</span>"+typeSize);
//此处创建这些音频可视化图形绘制浏览器支持妥妥的
initWaveStore(waveStore,".recwave");
},function(e,isUserNotAllow){
dialogCancel();
reclog((isUserNotAllow?"UserNotAllow，":"")+"打开失败："+e,1);
});
window.waitDialogClick=function(){
dialogCancel();
reclog("打开失败：权限请求被忽略，<span style='color:#f00'>用户主动点击的弹窗</span>");
};
};
//我们可以选择性的弹一个对话框：为了防止移动端浏览器存在第三种情况：用户忽略，并且（或者国产系统UC系）浏览器没有任何回调
var showDialog=function(){
if(!/mobile/i.test(navigator.userAgent)){
return;//只在移动端开启没有权限请求的检测
};
dialogCancel();
$("body").append(''
+'<div class="waitDialog" style="z-index:99999;width:100%;height:100%;top:0;left:0;position:fixed;background:rgba(0,0,0,0.3);">'
+'<div style="display:flex;height:100%;align-items:center;">'
+'<div style="flex:1;"></div>'
+'<div style="width:240px;background:#fff;padding:15px 20px;border-radius: 10px;">'
+'<div style="padding-bottom:10px;">录音功能需要麦克风权限，请允许；如果未看到任何请求，请点击忽略~</div>'
+'<div style="text-align:center;"><a onclick="waitDialogClick()" style="color:#0B1">忽略</a></div>'
+'</div>'
+'<div style="flex:1;"></div>'
+'</div>'
+'</div>');
};
var dialogInt;
var dialogCancel=function(){
clearTimeout(dialogInt);
$(".waitDialog").remove();
};
//弹框End
var callDestroy=function(){
Recorder.Destroy();
reclog("已执行Recorder.Destroy()");
scrollToEl(".reclog");
};
//拉取麦克风设备列表
var DeviceList=[];
var trackSetQueryDeviceList=function(click){
var end=function(list,err){
DeviceList=list;
if(click){
console.log("DeviceList: ", JSON.parse(JSON.stringify(DeviceList)));
}
var opts=['<option value="">'+(list.length?'不设置':err)+'</option>'];
for(var i=0;i<list.length;i++){
var o=list[i];
if(o.deviceId && o.kind=="audioinput"){
var name=o.label||((i+1)+"# 无名称，可能是因为从来没有打开过录音");
opts.push('<option value="'+i+'">'+name+'</option>');
}
}
$(".trackSet_device").html(opts.join(" "))
};
if(navigator.mediaDevices && navigator.mediaDevices.enumerateDevices){
navigator.mediaDevices.enumerateDevices().then(end)["catch"](function(e){
end([],"拉取失败："+e.message);
});
}else{
end([],"此浏览器不支持拉取设备列表");
}
};
trackSetQueryDeviceList();
function recclose(){
cancelAutoStop();
if(rec){
rec.close(function(){
reclog("已关闭");
});
}else{
reclog("未打开录音",1);
};
};
function recstart(call){
cancelAutoStop();
call||(call=function(msg){
msg&&reclog(msg,1);
});
if(rec&&Recorder.IsOpen()){
window.realTimeSendTryReset&&realTimeSendTryReset(rec.set);
sonicAsync&&sonicAsync.flush();//丢弃不管，省的去同步麻烦
sonicAsync=null;
rec.sonicTips="";
takeoffChunks=[];
//定时停止
var autoStop=$(".autoStopSet")[0].checked;
if(autoStop){
var time=+$(".autoStopTime").val()||0;
if(time<100){
reclog("定时不能小于100ms",1);
return;
};
autoStopTimer=setTimeout(function(){
autoStopTimer=0;
reclog("定时时间到，开始自动调用停止...");
recstop();
},time);
};
rec.start();
var set=rec.set;
reclog((autoStop?"定时"+time+"ms":"")+"录制中："+set.type+" "+set.sampleRate+"hz "+set.bitRate+"kbps");
call();
}else{
call("未打开录音");
};
};
var autoStopTimer;
var cancelAutoStop=function(){
if(autoStopTimer){
reclog("已取消定时停止",1);
clearTimeout(autoStopTimer);
autoStopTimer=0;
};
};
function recpause(){
if(rec){
rec.pause();
reclog("已暂停");
};
};
function recresume(){
if(rec){
rec.resume();
reclog("继续录音中...");
};
};
var recblob={};
function recstop(call){
recstopFn(call,true,function(err,blob,time){
setTimeout(function(){
window.realTimeSendTryStop&&realTimeSendTryStop(rec.set);
if(!err && rec.set.takeoffEncodeChunk){
reclog("启用takeoffEncodeChunk后stop返回的blob长度为0不提供音频数据","#f60");
reclog("takeoffEncodeChunk接收到"+takeoffChunks.length+"片音频片段，正在合并成一个音频文件...");
var len=0;
for(var i=0;i<takeoffChunks.length;i++){
len+=takeoffChunks[i].length;
};
var chunkData=new Uint8Array(len);
for(var i=0,idx=0;i<takeoffChunks.length;i++){
var itm=takeoffChunks[i];
chunkData.set(itm,idx);
idx+=itm.length;
};
var blob=new Blob([chunkData],{type:"audio/"+rec.set.type});
addRecLog(time,"合并",blob,rec.set,Date.now());
};
});
});
};
function recstopFn(call,isClick,endCall,rec){
cancelAutoStop();
call||(call=function(msg){
msg&&reclog(msg,1);
});
rec=rec||window.rec;
if(rec){
if(isClick){
reclog("正在编码"+rec.set.type+"...");
};
var t1=Date.now();
rec.stop(function(blob,time){
var tag=endCall("",blob,time);
if(tag==-1){
return;
};
addRecLog(time,tag||"已录制",blob,rec.set,t1);
call(null,{data:blob,duration:time});
},function(s){
endCall(s);
call("失败："+s);
});
}else{
call("未打开录音");
};
};
var recLogLast;
var addRecLog=function(time,tag,blob,set,t1){
var id=RandomKey(16);
recLogLast={blob:blob,set:$.extend({},set),time:time,key:id};
recblob[id]=recLogLast;
reclog(tag+":"+intp(set.bitRate,3)+"kbps "+intp(set.sampleRate,5)+"hz 花"+intp(Date.now()-t1,4)+"ms编码"+intp(blob.size,6)+"b ["+set.type+"]"+formatMs(time)+'ms <button onclick="recdown(\''+id+'\')">下载</button> <button onclick="recplay(\''+id+'\')">播放</button> <span class="p'+id+'"></span> <span class="d'+id+'"></span>');
};
var intp=function(s,len){
s=s==null?"-":s+"";
if(s.length>=len)return s;
return ("_______"+s).substr(-len);
};
var formatMs=function(ms,all){
var f=Math.floor(ms/60000),m=Math.floor(ms/1000)%60;
var s=(all||f>0?(f<10?"0":"")+f+":":"")
+(all||f>0||m>0?("0"+m).substr(-2)+"″":"")
+("00"+ms%1000).substr(-3);
return s;
};
function recstop2(){
if(!rec||!rec.buffers){
reclog("需先录个音");
return;
};
var type=$("[name=type]:checked").val();
var sample=+$(".sample").val();
var bits=/(\d+)\s+to\s+(\d+)\s+step\s+(\d+)\s*/i.exec($(".bits").val());
if(!bits){
reclog("码率列表有误，需要? to ? step ?结构");
return;
};
reclog("开始批量编码，请勿进行其他操作~");
rec.set.type=type;
rec.set.sampleRate=sample;
var list=[];
for(var i=+bits[1];i<+bits[2]+1;i+=+bits[3]){
list.push(i);
};
if(/^(wav|pcm)$/.test(rec.set.type)){
list=[8,16];
};
var i=-1;
var bak=rec.set.bitRate;
var run=function(){
i++;
if(i>=list.length){
rec.set.bitRate=bak;
reclog("批量编码完成");
return;
};
rec.set.bitRate=list[i];
rec.isMock=1;
recstopFn(null,0,function(){
setTimeout(run);
});
};
run();
};
function recplay(key){
var audio=$(".recPlay")[0];
audio.style.display="inline-block";
if(!(audio.ended || audio.paused)){
audio.pause();
};
var o=recblob[key];
if(o){
o.play=(o.play||0)+1;
var logmsg=function(msg){
$(".p"+key).html('<span style="color:green">'+o.play+'</span> '+new Date().toLocaleTimeString()+" "+msg);
};
logmsg("");
audio.onerror=function(e){
logmsg('<span style="color:red">播放失败['+audio.error.code+']'+audio.error.message+'</span>');
};
if(o.play2Name){
audio.src="assets/audio/"+o.play2Name;
audio.play();
return;
};
var end=function(blob){
audio.src=(window.URL||webkitURL).createObjectURL(blob);
audio.play();
};
var wav=Recorder[o.set.type+"2wav"];
if(wav){