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<ol class="chapter"><li class="chapter-item expanded "><a href="index.html"><strong aria-hidden="true">1.</strong> 精益副业</a></li><li class="chapter-item expanded "><a href="01.html"><strong aria-hidden="true">2.</strong> 为什么副业特别重要</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="0101.html"><strong aria-hidden="true">2.1.</strong> 职业可能性</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="010101.html"><strong aria-hidden="true">2.1.1.</strong> 职业的四大象限</a></li><li class="chapter-item expanded "><a href="010102.html"><strong aria-hidden="true">2.1.2.</strong> 没有副业的职业</a></li><li class="chapter-item expanded "><a href="010103.html"><strong aria-hidden="true">2.1.3.</strong> 副业带来的可能性</a></li></ol></li><li class="chapter-item expanded "><a href="0102.html"><strong aria-hidden="true">2.2.</strong> 职业自由度</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="010201.html"><strong aria-hidden="true">2.2.1.</strong> 从中指备用金说起</a></li><li class="chapter-item expanded "><a href="010202.html"><strong aria-hidden="true">2.2.2.</strong> PlanB和反脆弱</a></li><li class="chapter-item expanded "><a href="010203.html"><strong aria-hidden="true">2.2.3.</strong> 全新的工作自由度</a></li></ol></li><li class="chapter-item expanded "><a href="0103.html"><strong aria-hidden="true">2.3.</strong> 职业成长性</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="010301A.html"><strong aria-hidden="true">2.3.1.</strong> 新技术练兵场</a></li><li class="chapter-item expanded "><a href="010302.html"><strong aria-hidden="true">2.3.2.</strong> 业务敏感度</a></li></ol></li></ol></li><li class="chapter-item expanded "><a href="02.html"><strong aria-hidden="true">3.</strong> 如何优雅地做副业</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="0201.html"><strong aria-hidden="true">3.1.</strong> 想明白核心资源和核心优势</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="020101.html"><strong aria-hidden="true">3.1.1.</strong> 副业的核心资源</a></li><li class="chapter-item expanded "><a href="020102.html"><strong aria-hidden="true">3.1.2.</strong> 副业的核心优势</a></li></ol></li><li class="chapter-item expanded "><a href="0202.html"><strong aria-hidden="true">3.2.</strong> 时间片</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="020201.html"><strong aria-hidden="true">3.2.1.</strong> 时间片的销售</a></li><li class="chapter-item expanded "><a href="020202.html"><strong aria-hidden="true">3.2.2.</strong> 时间片的优化</a></li><li class="chapter-item expanded "><a href="020203.html"><strong aria-hidden="true">3.2.3.</strong> 突破时间片限制</a></li></ol></li><li class="chapter-item expanded "><a href="0203.html"><strong aria-hidden="true">3.3.</strong> 资产和被动收入</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="020301.html"><strong aria-hidden="true">3.3.1.</strong> 什么是资产</a></li><li class="chapter-item expanded "><a href="020302.html"><strong aria-hidden="true">3.3.2.</strong> 资产的获得方式</a></li><li class="chapter-item expanded "><a href="020303.html"><strong aria-hidden="true">3.3.3.</strong> 资产的量化评估</a></li></ol></li></ol></li><li class="chapter-item expanded "><a href="03.html"><strong aria-hidden="true">4.</strong> 优选资产</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="0301.html"><strong aria-hidden="true">4.1.</strong> 知识和人脉的变现</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="030101.html"><strong aria-hidden="true">4.1.1.</strong> 付费视频课</a></li><li class="chapter-item expanded "><a href="030102.html"><strong aria-hidden="true">4.1.2.</strong> 付费专栏</a></li><li class="chapter-item expanded "><a href="030103.html"><strong aria-hidden="true">4.1.3.</strong> 付费社群</a></li><li class="chapter-item expanded "><a href="030104.html"><strong aria-hidden="true">4.1.4.</strong> 图书出版</a></li></ol></li><li class="chapter-item expanded "><a href="0302.html"><strong aria-hidden="true">4.2.</strong> 自有产品和服务</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="030201.html"><strong aria-hidden="true">4.2.1.</strong> 应用市场卖APP</a></li></ol></li></ol></li><li class="chapter-item expanded "><a href="04.html"><strong aria-hidden="true">5.</strong> 精益副业</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="0401.html"><strong aria-hidden="true">5.1.</strong> 精益副业流程</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="040104.html"><strong aria-hidden="true">5.1.1.</strong> 商业模式画布</a></li><li class="chapter-item expanded "><a href="040105.html"><strong aria-hidden="true">5.1.2.</strong> 最小可行产品和产品市场契合</a></li></ol></li><li class="chapter-item expanded "><a href="0403.html"><strong aria-hidden="true">5.2.</strong> 精益独立开发实践</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="040301.html"><strong aria-hidden="true">5.2.1.</strong> 独立开发的精益流程</a></li><li class="chapter-item expanded "><a href="040302.html"><strong aria-hidden="true">5.2.2.</strong> 福利单词项目简介</a></li><li class="chapter-item expanded "><a href="040303.html"><strong aria-hidden="true">5.2.3.</strong> 福利单词的商业模式画布</a></li><li class="chapter-item expanded "><a href="040304.html"><strong aria-hidden="true">5.2.4.</strong> 通过用户画像细化客户</a></li><li class="chapter-item expanded "><a href="040305.html"><strong aria-hidden="true">5.2.5.</strong> 画像→场景→功能和分期</a></li><li class="chapter-item expanded "><a href="040306.html"><strong aria-hidden="true">5.2.6.</strong> 什么是好的商业设计</a></li><li class="chapter-item expanded "><a href="040307.html"><strong aria-hidden="true">5.2.7.</strong> 人人能用的四大原则</a></li><li class="chapter-item expanded "><a href="040308.html"><strong aria-hidden="true">5.2.8.</strong> 独特Logo解决方案</a></li><li class="chapter-item expanded "><a href="040309.html"><strong aria-hidden="true">5.2.9.</strong> 使用AdobeXD设计界面</a></li><li class="chapter-item expanded "><a href="040310.html"><strong aria-hidden="true">5.2.10.</strong> 个人支付解决方案</a></li><li class="chapter-item expanded "><a href="040311.html"><strong aria-hidden="true">5.2.11.</strong> 使用「兔小巢」处理用户反馈</a></li><li class="chapter-item expanded "><a href="040312.html"><strong aria-hidden="true">5.2.12.</strong> 2A3R漏斗和增长优化</a></li></ol></li><li class="chapter-item expanded "><a href="0402.html"><strong aria-hidden="true">5.3.</strong> 精益网课变现实践</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="040207.html"><strong aria-hidden="true">5.3.1.</strong> 大纲的注意点</a></li><li class="chapter-item expanded "><a href="040209.html"><strong aria-hidden="true">5.3.2.</strong> 通过预售验证销量</a></li><li class="chapter-item expanded "><a href="040210.html"><strong aria-hidden="true">5.3.3.</strong> 常见的课程片段类型</a></li><li class="chapter-item expanded "><a href="040211.html"><strong aria-hidden="true">5.3.4.</strong> 文稿讲义类课程片段的制作</a></li><li class="chapter-item expanded "><a href="040212.html"><strong aria-hidden="true">5.3.5.</strong> 屏幕录制类课程片段的制作</a></li><li class="chapter-item expanded "><a href="040213.html"><strong aria-hidden="true">5.3.6.</strong> 真人出镜类课程片段的制作</a></li><li class="chapter-item expanded "><a href="040214.html"><strong aria-hidden="true">5.3.7.</strong> 虚拟形象类课程片段的制作</a></li><li class="chapter-item expanded "><a href="040215.html"><strong aria-hidden="true">5.3.8.</strong> 最常用的视频剪辑操作</a></li><li class="chapter-item expanded "><a href="040216.html"><strong aria-hidden="true">5.3.9.</strong> 最常用的音频处理操作</a></li><li class="chapter-item expanded "><a href="040217.html" class="active"><strong aria-hidden="true">5.3.10.</strong> 字幕的制作和自动生成</a></li><li class="chapter-item expanded "><a href="040218.html"><strong aria-hidden="true">5.3.11.</strong> 流量池和二次购买</a></li><li class="chapter-item expanded "><a href="040219.html"><strong aria-hidden="true">5.3.12.</strong> 如何有效地反盗版</a></li></ol></li><li class="chapter-item expanded "><a href="0404.html"><strong aria-hidden="true">5.4.</strong> 进一步提升副业的鲁棒性</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="040401.html"><strong aria-hidden="true">5.4.1.</strong> 网课+独立开发的双引擎副业模式</a></li></ol></li></ol></li></ol>
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<h1 id="字幕的制作和自动生成"><a class="header" href="#字幕的制作和自动生成">字幕的制作和自动生成</a></h1>
<p>对于技术类课程来讲，字幕是非常有用的。一些技术名词光是读出来，有时候很难明白它是什么意思。而如果有字幕，就可以一目了然了。</p>
<h2 id="字幕及其格式"><a class="header" href="#字幕及其格式">字幕及其格式</a></h2>
<p>所谓字幕呢，是指我们在播放视频的时候，显示在屏幕下方的、和语音同步的文字。为了让计算机正确地显示出字幕，我们需要告诉它两个信息：</p>
<ol>
<li>这个字幕的文本是什么</li>
<li>这个文本应该在什么时间开始显示，在什么时间结束</li>
</ol>
<p>也就是说，最基本的字幕信息应该包含「文字本身」以及「文字显示的时间段」。</p>
<p>当我们把多条字幕的信息合并放到一起，就有了字幕文件。字幕文件可以是单独的文件，在播放视频时载入并显示，这种方式称为「外挂」；也可以在压制视频时直接压制到视频里，这样即使播放器不支持字幕功能，也可以正常显示。</p>
<p>字幕的格式有很多种，srt 格式是最简单的格式之一。</p>
<p><img src="images/62dc524776dc00af636cbaaf05bec313b51916178d77e02e0e116fd929e2a93f.png" alt="picture 21" /></p>
<p>它由多段文本组成，每段文本分为三行：</p>
<ol>
<li>第一行是序号，一般从 0 开始递增</li>
<li>第二行是显示时间段，中间用箭头分隔</li>
<li>第三行是这个时间段应该显示的文字</li>
</ol>
<h2 id="字幕编辑软件"><a class="header" href="#字幕编辑软件">字幕编辑软件</a></h2>
<p>我们使用的字幕编辑软件是 <a href="https://arctime.org/">ArcTime</a>，它是一款跨平台的免费软件。启动以后的界面是这样的：</p>
<p><img src="images/165620d9e9ed2f1a0a834a832b61168f1939c29117f81b604ed6cacae77e4b7a.png" alt="picture 22" /></p>
<p>左上部分区域是视频的预览区，可以从顶部菜单的「文件」→「导入音视频文件」载入要编辑字幕的视频。然后它就会显示预览区。</p>
<p>预览区下方就是字幕区，有根据音频生成的波形在上边。在这个区域点击右键，选择「插入空白字幕」，就会插入一个空白的字幕条，双击可以输入字幕，拖拽可以调整显示的时长和起止时间。</p>
<p>添加好字幕以后，点击预览区的播放按钮，可以实时地看到新添加的字幕效果。需要注意的是，目前的版本中，删除某条字幕的操作是不能撤销的。这可能是这个软件为数不多的缺点了。</p>
<p>整个视频的全部字幕添加完以后，点击顶部菜单中的「导出」→「字幕文件」就会将刚才编辑的字幕生成一个字幕文件了。</p>
<p><img src="images/747331b8341ef7ac9aa5a2dd1456fe0c54451519091c634b9df663bf118cacce.png" alt="picture 23" /> </p>
<p>如果想要把字幕直接压制到视频里边，则可以选择「快速压制视频」选项。</p>
<h2 id="字幕的自动生成"><a class="header" href="#字幕的自动生成">字幕的自动生成</a></h2>
<p>ArcTime 还内置了一个为视频生成字幕的功能，放置在「语音识别」菜单中，但这些功能是收费的。</p>
<p>对于程序员来讲，有一个更为廉价的方式获得同样的效果，那就是直接写代码去调用云服务商提供的 API。比如<a href="https://ai.aliyun.com/nls/filetrans?spm=5176.12061031.1228726.1.47fe3cb43I34mn">阿里云</a>、腾讯云和<a href="http://api.fanyi.baidu.com/api/trans/product/index">百度翻译平台</a>就提供了相关接口。</p>
<p>更有开发者已经在 <a href="https://github.com/wxbool/video-srt-windows">GitHub</a> 上开源了基于这些接口的命令行和客户端软件。大家可以在 GitHub 搜索「VideoSrt」，自行安装试用。</p>
<p><img src="images/f422703492df26295513f51a08875ad5988fec98ed3d0eec6d5cc8f2844369df.png" alt="picture 24" /></p>
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