[{"data":1,"prerenderedAt":478},["ShallowReactive",2],{"guide-video-cut-guide":3,"faq-video-cut-guide":4,"related-video-cut-guide":134},null,{"id":5,"title":6,"body":7,"category":110,"description":111,"extension":112,"keywords":113,"meta":120,"navigation":122,"path":123,"relatedTools":124,"seo":129,"stem":130,"type":131,"updatedAt":132,"__hash__":133},"faq\u002Fhelp\u002Ffaq\u002Fvideo-cut-guide.md","视频怎么裁剪？视频裁剪去片头片尾常见问题解答",{"type":8,"value":9,"toc":96},"minimark",[10,14,18,23,35,39,42,46,49,53,56,60,63,67,70,73],[11,12,13],"p",{},"打开91AI工具的视频裁剪功能，把视频拖进上传区，设置开始时间和结束时间，点击裁剪，等待处理完成后下载即可。整个过程在浏览器本地完成，视频不上传服务器，不用安装剪辑软件。",[15,16,17],"h2",{"id":17},"详细解答",[19,20,22],"h3",{"id":21},"怎么去掉视频的片头片尾","怎么去掉视频的片头片尾？",[11,24,25,26,30,31,34],{},"上传视频后，把",[27,28,29],"strong",{},"开始时间","设为正片开始的位置（跳过片头），",[27,32,33],{},"结束时间","设为正片结束的位置（跳过片尾）。比如片头有5秒广告，就从5秒开始剪。",[19,36,38],{"id":37},"裁剪能不能精确到秒","裁剪能不能精确到秒？",[11,40,41],{},"可以。工具支持精确到秒的时间设置，输入起止时间即可精准截取指定片段，秒级定位足够应付大多数需求。",[19,43,45],{"id":44},"裁剪会影响视频画质吗","裁剪会影响视频画质吗？",[11,47,48],{},"不会。视频裁剪只截取片段、不重新编码，画质和原始视频一致，尺寸、帧率都不变，这也是很多人喜欢在线裁剪的原因。",[19,50,52],{"id":51},"手机上能裁剪视频吗","手机上能裁剪视频吗？",[11,54,55],{},"能。91AI工具在手机浏览器里也能直接用，本地处理不依赖电脑性能，录屏、拍摄的视频随时能剪。",[19,57,59],{"id":58},"裁剪后的视频去哪找","裁剪后的视频去哪找？",[11,61,62],{},"处理完成后页面会给出下载按钮，点击即可保存到手机或电脑。工具不会保留你的视频文件，隐私有保障。",[19,64,66],{"id":65},"有没有批量裁剪或连段截取","有没有批量裁剪或连段截取？",[11,68,69],{},"视频裁剪主要面向单次截取一个片段。如果要把多个片段合成一个，可用视频合并工具配合完成；需要变速或翻转再加视频变速、视频翻转工具。",[15,71,72],{"id":72},"相关推荐",[74,75,76,84,90],"ul",{},[77,78,79],"li",{},[80,81,83],"a",{"href":82},"\u002Fhelp\u002Fvideo-cut","视频裁剪使用指南",[77,85,86],{},[80,87,89],{"href":88},"\u002Fhelp\u002Fvideo-merge-guide","视频合并：多个视频拼成一个",[77,91,92],{},[80,93,95],{"href":94},"\u002Fblog\u002Fvideo-compress-complete-guide","视频压缩：剪完给视频瘦身",{"title":97,"searchDepth":98,"depth":98,"links":99},"",2,[100,109],{"id":17,"depth":98,"text":17,"children":101},[102,104,105,106,107,108],{"id":21,"depth":103,"text":22},3,{"id":37,"depth":103,"text":38},{"id":44,"depth":103,"text":45},{"id":51,"depth":103,"text":52},{"id":58,"depth":103,"text":59},{"id":65,"depth":103,"text":66},{"id":72,"depth":98,"text":72},"media","录好的视频带一大段黑屏片头片尾、中间插了广告、只要几秒钟精彩片段却不会剪？这篇视频裁剪常见问题解答汇总了怎么设置起止时间、能不能精确到秒、裁剪会不会影响画质、手机上能不能用、裁剪后视频去哪找等高频疑问，在线工具纯前端本地处理不上传服务器保护隐私，拖拽上传设置开始结束时间即可下载，一次学会视频截取与片头片尾去除。","md",[114,115,116,117,118,119],"视频裁剪","视频怎么剪","去片头片尾","视频截取片段","在线剪视频","视频剪辑入门",{"readingTime":121},4,true,"\u002Fhelp\u002Ffaq\u002Fvideo-cut-guide",[125,126,127,128],"video-cut","video-merge","video-speed","video-flip",{"title":6,"description":111},"help\u002Ffaq\u002Fvideo-cut-guide","faq","2026-08-10","p71ynB3W4SMI1Cm6oWh5jZwAWE_CTYsEhg7Nt8zREjc",[135,275,393],{"id":136,"title":137,"body":138,"category":110,"description":258,"extension":112,"keywords":259,"meta":264,"navigation":122,"path":265,"relatedTools":266,"seo":271,"stem":272,"type":131,"updatedAt":273,"__hash__":274},"faq\u002Fhelp\u002Ffaq\u002Faudio-convert-guide.md","音频格式转换常见问题：MP3\u002FWAV\u002FFLAC怎么转",{"type":8,"value":139,"toc":246},[140,148,150,154,172,179,183,186,190,193,197,200,204,207,211,214,218,221,223],[11,141,142,143,147],{},"录音、下载的音乐在别的设备上放不了，或者无损格式太大传不出去，都需要转格式。用 91AI工具的",[80,144,146],{"href":145},"\u002Ftools\u002Faudio-convert","音频格式转换","在线完成。",[15,149,17],{"id":17},[19,151,153],{"id":152},"q-如何在线转换音频格式","Q: 如何在线转换音频格式？",[155,156,157,163,166,169],"ol",{},[77,158,159,160],{},"打开",[80,161,162],{"href":145},"音频转换工具",[77,164,165],{},"上传音频文件",[77,167,168],{},"选择目标格式，如 MP3、WAV、FLAC、M4A、AAC",[77,170,171],{},"转换完成下载即可",[11,173,174],{},[175,176],"img",{"alt":177,"src":178},"音频格式转换工具界面","\u002Fimages\u002Ftools\u002Faudio-convert.png",[19,180,182],{"id":181},"q-支持哪些格式","Q: 支持哪些格式？",[11,184,185],{},"支持 MP3、WAV、FLAC、M4A、AAC、OGG、WMA 等主流格式互转，满足大多数场景。",[19,187,189],{"id":188},"q-无损转-mp3-会损失音质吗","Q: 无损转 MP3 会损失音质吗？",[11,191,192],{},"FLAC\u002FWAV 属于无损，转成 MP3 会按码率压缩；追求画质\u002F音质可用高码率参数，听感差别不大。",[19,194,196],{"id":195},"q-能一次转多个文件吗","Q: 能一次转多个文件吗？",[11,198,199],{},"支持批量转换，多个音频一次排队处理，省去逐个操作。",[19,201,203],{"id":202},"q-如何选择输出格式","Q: 如何选择输出格式？",[11,205,206],{},"发微信、手机听歌选 MP3；剪辑配音用 WAV；无损保存用 FLAC；苹果设备用 M4A\u002FAAC。",[19,208,210],{"id":209},"q-转完的文件在哪","Q: 转完的文件在哪？",[11,212,213],{},"转换完成后点击下载即可保存到本地，云端不长期保留文件。",[19,215,217],{"id":216},"q-转换安全吗","Q: 转换安全吗？",[11,219,220],{},"浏览器在线处理，转换完成自动删除源文件，隐私更放心。",[15,222,72],{"id":72},[74,224,225,232,239],{},[77,226,227,231],{},[80,228,230],{"href":229},"\u002Ftools\u002Faudio-extract","提取音频"," - 从视频里把声音提出来",[77,233,234,238],{},[80,235,237],{"href":236},"\u002Ftools\u002Faudio-merge","音频合并"," - 多个音频拼一个",[77,240,241,245],{},[80,242,244],{"href":243},"\u002Ftools\u002Faudio-compress","音频压缩"," - 体积再瘦一点",{"title":97,"searchDepth":98,"depth":98,"links":247},[248,257],{"id":17,"depth":98,"text":17,"children":249},[250,251,252,253,254,255,256],{"id":152,"depth":103,"text":153},{"id":181,"depth":103,"text":182},{"id":188,"depth":103,"text":189},{"id":195,"depth":103,"text":196},{"id":202,"depth":103,"text":203},{"id":209,"depth":103,"text":210},{"id":216,"depth":103,"text":217},{"id":72,"depth":98,"text":72},"音频格式转换常见问题解答，解决设备软件对音频格式要求不同、WAV FLAC无损太大放不了、剪辑素材不兼容的痛点。回答支持哪些格式互换、无损转MP3损失音质大吗、能不能批量转换、怎么选输出格式、转完去哪找文件，浏览器在线无需安装转换软件即可使用，转换完成自动删除源文件，适合录课剪辑音乐制作适配多种设备随身播放。",[146,260,261,262,263],"MP3转WAV","FLAC转MP3","音频转格式","在线音频转换",{},"\u002Fhelp\u002Ffaq\u002Faudio-convert-guide",[267,268,269,270],"audio-convert","audio-extract","audio-merge","audio-compress",{"title":137,"description":258},"help\u002Ffaq\u002Faudio-convert-guide","2026-08-08","bXs2v8vWwgvISXAJQSsyyfb37nXCdqr1VqhTZWZXM8I",{"id":276,"title":277,"body":278,"category":110,"description":377,"extension":112,"keywords":378,"meta":384,"navigation":122,"path":385,"relatedTools":386,"seo":389,"stem":390,"type":131,"updatedAt":391,"__hash__":392},"faq\u002Fhelp\u002Ffaq\u002Faudio-cut-guide.md","音频裁剪常见问题：在线剪切MP3音频片段的完整指南",{"type":8,"value":279,"toc":365},[280,283,285,289,297,301,304,308,311,315,318,322,325,329,332,336,339,341],[11,281,282],{},"音频裁剪是从音频文件中截取指定片段的常用操作，适用于提取录音精华、制作手机铃声和编辑播客内容。使用91AI工具网的在线音频裁剪工具，上传音频即可快速剪切。",[15,284,17],{"id":17},[19,286,288],{"id":287},"如何在线裁剪音频文件","如何在线裁剪音频文件？",[11,290,291,292,296],{},"推荐使用91AI工具网的",[80,293,295],{"href":294},"\u002Ftools\u002Faudio-cut","音频裁剪工具","，打开页面后上传音频文件（支持MP3、WAV、AAC、OGG、FLAC等格式）。在时间轴上设定起始位置和结束位置，点击裁剪按钮即可提取指定片段并下载。",[19,298,300],{"id":299},"可以精确到毫秒级裁剪吗","可以精确到毫秒级裁剪吗？",[11,302,303],{},"支持毫秒级精度的裁剪。如果需要非常精确的裁剪位置，可以先使用音频播放器查看文件的时间码，然后在工具的输入框中直接输入精确的时间值（格式为时:分:秒.毫秒）。",[19,305,307],{"id":306},"裁剪后的音频音质会变差吗","裁剪后的音频音质会变差吗？",[11,309,310],{},"裁剪过程不重新编码音频，因此不会造成音质损失。裁剪后的文件保持原始采样率和比特率，音质与原始文件完全一致。如果发现音质下降，说明开启了重新编码选项，建议关闭。",[19,312,314],{"id":313},"支持哪些音频格式裁剪","支持哪些音频格式裁剪？",[11,316,317],{},"支持MP3、WAV、AAC、OGG、FLAC、M4A等主流音频格式。同时支持从视频文件中提取并裁剪音频轨道，处理后的音频以MP3格式输出。",[19,319,321],{"id":320},"如何裁剪手机录音中的指定部分","如何裁剪手机录音中的指定部分？",[11,323,324],{},"手机录音通常是M4A或AMR格式，上传到工具后即可裁剪。建议先通过播放器听完整段录音，记录需要保留片段的开始和结束时间，然后在工具中输入对应的时间数值进行精确裁剪。",[19,326,328],{"id":327},"一次可以裁剪多个片段吗","一次可以裁剪多个片段吗？",[11,330,331],{},"单次操作支持裁剪一个连续的音频片段。如果需要从同一音频中提取多个不连续的片段，建议分多次裁剪，然后使用音频合并工具将各片段拼接为一个文件。",[19,333,335],{"id":334},"裁剪后文件比原文件还大是为什么","裁剪后文件比原文件还大是为什么？",[11,337,338],{},"裁剪后的文件应该明显小于原文件。如果出现裁剪后文件更大的情况，通常是因为设置成了重新编码且选择了高比特率。选择\"不重新编码\"模式即可保持合理的文件大小。",[15,340,72],{"id":72},[74,342,343,348,353,358],{},[77,344,345,347],{},[80,346,295],{"href":294},"：在线剪切音频片段",[77,349,350,352],{},[80,351,237],{"href":236},"：将多个音频片段合并",[77,354,355,357],{},[80,356,146],{"href":145},"：转换音频文件格式",[77,359,360,364],{},[80,361,363],{"href":362},"\u002Ftools\u002Fvolume-adjust","音量调节","：调整音频音量大小",{"title":97,"searchDepth":98,"depth":98,"links":366},[367,376],{"id":17,"depth":98,"text":17,"children":368},[369,370,371,372,373,374,375],{"id":287,"depth":103,"text":288},{"id":299,"depth":103,"text":300},{"id":306,"depth":103,"text":307},{"id":313,"depth":103,"text":314},{"id":320,"depth":103,"text":321},{"id":327,"depth":103,"text":328},{"id":334,"depth":103,"text":335},{"id":72,"depth":98,"text":72},"音频裁剪的常见问题解答，涵盖在线剪切方法、起止时间精确设定、多种音频格式支持和裁剪后音质保持等核心问题。帮助用户从手机录音、音乐文件和播客中快速提取指定片段，无需安装任何软件即可在线完成音频剪切和编辑操作，支持MP3、WAV、AAC和OGG等主流音频格式，轻松提取需要的音频内容进行后续编辑处理，操作简单快捷。",[379,380,381,382,383],"音频裁剪","剪切音频","MP3裁剪","音频编辑","音频片段提取",{},"\u002Fhelp\u002Ffaq\u002Faudio-cut-guide",[387,269,267,388],"audio-cut","volume-adjust",{"title":277,"description":377},"help\u002Ffaq\u002Faudio-cut-guide","2026-07-30","lfpNVGvt9SntWTU_NAkT_QTfHVgeBv6CfyXo6ZGC8-E",{"id":394,"title":395,"body":396,"category":110,"description":464,"extension":112,"keywords":465,"meta":471,"navigation":122,"path":472,"relatedTools":473,"seo":474,"stem":475,"type":131,"updatedAt":476,"__hash__":477},"faq\u002Fhelp\u002Ffaq\u002Faudio-extract-guide.md","视频提取音频常见问题：视频转音频工具FAQ",{"type":8,"value":397,"toc":454},[398,402,405,409,412,416,419,423,426,430,433,437,440,444,447,451],[15,399,401],{"id":400},"支持从哪些视频格式提取音频","支持从哪些视频格式提取音频？",[11,403,404],{},"支持MP4、MKV、MOV、AVI、WMV、FLV、WebM、3GP、OGV、MPEG等主流视频格式。",[15,406,408],{"id":407},"可以提取哪些音频格式","可以提取哪些音频格式？",[11,410,411],{},"支持输出MP3、AAC、WAV、FLAC、OGG、M4A、Opus、WMA等多种音频格式。",[15,413,415],{"id":414},"提取速度快吗","提取速度快吗？",[11,417,418],{},"使用快速复制模式时，直接提取音频流无需重新编码，速度很快。普通视频几分钟内即可完成。",[15,420,422],{"id":421},"提取的音频质量如何","提取的音频质量如何？",[11,424,425],{},"音频质量取决于原始视频中音频的音质。如果源视频音质好，提取的音频质量也高。",[15,427,429],{"id":428},"可以提取部分音频吗","可以提取部分音频吗？",[11,431,432],{},"目前提取完整的音频轨道。如需片段，可以先用视频剪辑工具裁剪视频，再提取音频。",[15,434,436],{"id":435},"文件上传到服务器吗","文件上传到服务器吗？",[11,438,439],{},"不会。工具在浏览器中纯前端处理，视频文件不上传服务器，保护你的隐私安全。",[15,441,443],{"id":442},"可以批量提取吗","可以批量提取吗？",[11,445,446],{},"支持同时上传多个视频文件批量提取音频，每个文件的输出格式可独立设置。",[15,448,450],{"id":449},"手机可以使用吗","手机可以使用吗？",[11,452,453],{},"可以。工具响应式设计，手机浏览器上操作与电脑版一致。",{"title":97,"searchDepth":98,"depth":98,"links":455},[456,457,458,459,460,461,462,463],{"id":400,"depth":98,"text":401},{"id":407,"depth":98,"text":408},{"id":414,"depth":98,"text":415},{"id":421,"depth":98,"text":422},{"id":428,"depth":98,"text":429},{"id":435,"depth":98,"text":436},{"id":442,"depth":98,"text":443},{"id":449,"depth":98,"text":450},"关于在线视频提取音频工具（从视频中提取MP3、AAC、WAV等音频格式）的常见问题解答。",[466,467,468,469,470],"音频提取FAQ","视频转MP3","视频提取音频","提取音乐","视频转音频",{},"\u002Fhelp\u002Ffaq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