[{"data":1,"prerenderedAt":2311},["ShallowReactive",2],{"guide-video-to-video":3,"related-video-to-video":725},{"id":4,"title":5,"body":6,"category":702,"description":703,"extension":704,"keywords":705,"meta":712,"navigation":713,"path":714,"readingTime":715,"relatedTools":716,"seo":720,"stem":721,"type":722,"updatedAt":723,"__hash__":724},"guides\u002Fhelp\u002Fguides\u002Fvideo-to-video.md","视频格式转换使用指南：在线转换MP4\u002FAVI\u002FMKV",{"type":7,"value":8,"toc":675},"minimark",[9,13,17,22,26,96,100,104,113,119,130,135,140,144,149,160,165,176,181,192,197,208,212,217,228,233,244,249,257,262,270,274,277,291,296,307,311,314,317,320,420,423,479,482,486,491,502,507,518,522,526,534,538,549,553,558,574,578,583,594,598,609,612,640,643,646,672],[10,11,5],"h1",{"id":12},"视频格式转换使用指南在线转换mp4avimkv",[14,15,16],"p",{},"视频格式转换是日常办公和娱乐中最常见的需求。据统计，全球每天有超过5亿个视频文件需要进行格式转换，不同设备、平台和软件对视频格式的要求各不相同。无论是MKV转MP4在电视上播放、AVI转MP4减小文件体积，还是MOV转MP4兼容更多设备，91AI视频格式转换工具支持16种输出格式，无需安装软件即可在线完成。",[18,19,21],"h2",{"id":20},"为什么需要视频格式转换","为什么需要视频格式转换？",[23,24,25],"h3",{"id":25},"常见需求",[27,28,29,48,64,80],"ol",{},[30,31,32,36],"li",{},[33,34,35],"strong",{},"设备兼容",[37,38,39,42,45],"ul",{},[30,40,41],{},"智能电视不支持MKV格式",[30,43,44],{},"旧款手机无法播放HEVC编码",[30,46,47],{},"车载系统只识别MP4\u002FAVI",[30,49,50,53],{},[33,51,52],{},"平台要求",[37,54,55,58,61],{},[30,56,57],{},"视频平台要求特定格式上传",[30,59,60],{},"社交媒体对格式有限制",[30,62,63],{},"云存储兼容性考量",[30,65,66,69],{},[33,67,68],{},"编辑需求",[37,70,71,74,77],{},[30,72,73],{},"视频编辑软件格式限制",[30,75,76],{},"专业软件兼容特定编码",[30,78,79],{},"跨平台协作格式统一",[30,81,82,85],{},[33,83,84],{},"存储优化",[37,86,87,90,93],{},[30,88,89],{},"不同格式压缩率差异大",[30,91,92],{},"HEVC编码可节省50%空间",[30,94,95],{},"选择合适格式减少存储占用",[18,97,99],{"id":98},"使用91ai转换视频格式","使用91AI转换视频格式",[23,101,103],{"id":102},"第一步上传视频","第一步：上传视频",[14,105,106,107,112],{},"打开 ",[108,109,111],"a",{"href":110},"\u002Ftools\u002Fvideo-convert-wasm","91AI 视频格式转换工具","。",[14,114,115,118],{},[33,116,117],{},"支持的输入格式","：",[37,120,121,124,127],{},[30,122,123],{},"MP4、AVI、MKV、MOV",[30,125,126],{},"WMV、FLV、WebM、M4V",[30,128,129],{},"3GP、OGV、TS等",[14,131,132,118],{},[33,133,134],{},"文件大小",[37,136,137],{},[30,138,139],{},"最大支持300MB",[23,141,143],{"id":142},"第二步选择输出格式","第二步：选择输出格式",[14,145,146,118],{},[33,147,148],{},"MP4（推荐）",[37,150,151,154,157],{},[30,152,153],{},"通用性最强的格式",[30,155,156],{},"几乎所有设备支持",[30,158,159],{},"建议大多数场景使用",[14,161,162,118],{},[33,163,164],{},"MKV",[37,166,167,170,173],{},[30,168,169],{},"支持多音轨\u002F字幕",[30,171,172],{},"适合高清电影收藏",[30,174,175],{},"封装灵活度最高",[14,177,178,118],{},[33,179,180],{},"AVI",[37,182,183,186,189],{},[30,184,185],{},"Windows原生支持",[30,187,188],{},"兼容老设备软件",[30,190,191],{},"文件体积较大",[14,193,194,118],{},[33,195,196],{},"其他格式",[37,198,199,202,205],{},[30,200,201],{},"MOV：苹果生态使用",[30,203,204],{},"WebM：网页优化首选",[30,206,207],{},"FLV：直播\u002F网页播放",[23,209,211],{"id":210},"第三步配置编码参数","第三步：配置编码参数",[14,213,214,118],{},[33,215,216],{},"视频编码",[37,218,219,222,225],{},[30,220,221],{},"H.264：兼容性最佳，推荐",[30,223,224],{},"H.265\u002FHEVC：压缩率更高，新设备支持",[30,226,227],{},"MPEG-4：传统编码，兼容老设备",[14,229,230,118],{},[33,231,232],{},"音频编码",[37,234,235,238,241],{},[30,236,237],{},"AAC：音质好，通用性强",[30,239,240],{},"MP3：兼容性广",[30,242,243],{},"AC3：环绕声支持",[14,245,246,118],{},[33,247,248],{},"分辨率设置",[37,250,251,254],{},[30,252,253],{},"保持原始：画质无损",[30,255,256],{},"自定义：降低分辨率减小体积",[14,258,259,118],{},[33,260,261],{},"比特率设置",[37,263,264,267],{},[30,265,266],{},"高比特率：画质更好，文件更大",[30,268,269],{},"低比特率：文件更小，画质下降",[23,271,273],{"id":272},"第四步开始转换","第四步：开始转换",[14,275,276],{},"点击\"开始转换\"，系统会：",[27,278,279,282,285,288],{},[30,280,281],{},"解析视频编码信息",[30,283,284],{},"解码原始视频流",[30,286,287],{},"按参数重新编码",[30,289,290],{},"封装为目标格式",[14,292,293,118],{},[33,294,295],{},"处理时间",[37,297,298,301,304],{},[30,299,300],{},"1分钟视频：1-3分钟",[30,302,303],{},"5分钟视频：3-8分钟",[30,305,306],{},"与视频长度和编码复杂度相关",[23,308,310],{"id":309},"第五步下载文件","第五步：下载文件",[14,312,313],{},"转换完成后下载目标格式视频。",[18,315,316],{"id":316},"格式对比参考",[23,318,319],{"id":319},"常见格式特性",[321,322,323,342],"table",{},[324,325,326],"thead",{},[327,328,329,333,336,339],"tr",{},[330,331,332],"th",{},"格式",[330,334,335],{},"兼容性",[330,337,338],{},"压缩率",[330,340,341],{},"适用场景",[343,344,345,360,372,384,396,408],"tbody",{},[327,346,347,351,354,357],{},[348,349,350],"td",{},"MP4",[348,352,353],{},"最高",[348,355,356],{},"高",[348,358,359],{},"通用播放、分享",[327,361,362,364,367,369],{},[348,363,164],{},[348,365,366],{},"中",[348,368,366],{},[348,370,371],{},"高清电影、多字幕",[327,373,374,376,378,381],{},[348,375,180],{},[348,377,356],{},[348,379,380],{},"低",[348,382,383],{},"老设备、Windows",[327,385,386,389,391,393],{},[348,387,388],{},"MOV",[348,390,366],{},[348,392,366],{},[348,394,395],{},"Mac\u002FiOS生态",[327,397,398,401,403,405],{},[348,399,400],{},"WebM",[348,402,366],{},[348,404,356],{},[348,406,407],{},"网页播放",[327,409,410,413,415,417],{},[348,411,412],{},"FLV",[348,414,380],{},[348,416,366],{},[348,418,419],{},"直播流媒体",[23,421,422],{"id":422},"编码对比",[321,424,425,439],{},[324,426,427],{},[327,428,429,432,434,437],{},[330,430,431],{},"编码",[330,433,338],{},[330,435,436],{},"画质",[330,438,335],{},[343,440,441,455,467],{},[327,442,443,446,449,452],{},[348,444,445],{},"H.264",[348,447,448],{},"良好",[348,450,451],{},"优秀",[348,453,454],{},"最广",[327,456,457,460,462,464],{},[348,458,459],{},"H.265",[348,461,451],{},[348,463,451],{},[348,465,466],{},"较新设备",[327,468,469,472,474,476],{},[348,470,471],{},"VP9",[348,473,451],{},[348,475,448],{},[348,477,478],{},"浏览器支持",[18,480,481],{"id":481},"常见问题",[23,483,485],{"id":484},"q1-转换后画质下降","Q1: 转换后画质下降？",[14,487,488,118],{},[33,489,490],{},"原因",[37,492,493,496,499],{},[30,494,495],{},"重新编码导致的画质损失",[30,497,498],{},"选择了过低比特率",[30,500,501],{},"输出格式限制",[14,503,504,118],{},[33,505,506],{},"解决",[37,508,509,512,515],{},[30,510,511],{},"选择\"保持原始\"设置",[30,513,514],{},"提高输出比特率",[30,516,517],{},"使用H.265编码保留画质",[23,519,521],{"id":520},"q2-mkv转mp4后字幕丢失","Q2: MKV转MP4后字幕丢失？",[14,523,524,118],{},[33,525,490],{},[37,527,528,531],{},[30,529,530],{},"MP4不支持部分字幕格式",[30,532,533],{},"需要重新封装字幕轨道",[14,535,536,118],{},[33,537,506],{},[37,539,540,543,546],{},[30,541,542],{},"转换前确认字幕格式兼容",[30,544,545],{},"先提取字幕再单独处理",[30,547,548],{},"使用MKV格式保留原字幕",[23,550,552],{"id":551},"q3-大文件转换太慢","Q3: 大文件转换太慢？",[14,554,555,118],{},[33,556,557],{},"建议",[37,559,560,563,566],{},[30,561,562],{},"保持网络稳定连接",[30,564,565],{},"选择高效率编码",[30,567,568,569,573],{},"可先",[108,570,572],{"href":571},"\u002Ftools\u002Fvideo-compress-wasm","压缩视频","再转换",[23,575,577],{"id":576},"q4-转换失败如何排查","Q4: 转换失败如何排查？",[14,579,580,118],{},[33,581,582],{},"可能原因",[37,584,585,588,591],{},[30,586,587],{},"视频文件损坏",[30,589,590],{},"编码格式不被支持",[30,592,593],{},"浏览器兼容性问题",[14,595,596,118],{},[33,597,506],{},[37,599,600,603,606],{},[30,601,602],{},"确认视频可正常播放",[30,604,605],{},"尝试更换浏览器",[30,607,608],{},"检查文件是否完整",[18,610,611],{"id":611},"相关工具",[37,613,614,622,631],{},[30,615,616,621],{},[33,617,618],{},[108,619,620],{"href":571},"视频压缩"," - 压缩视频大小",[30,623,624,630],{},[33,625,626],{},[108,627,629],{"href":628},"\u002Ftools\u002Faudio-extract-wasm","视频转音频"," - 提取视频音频",[30,632,633,639],{},[33,634,635],{},[108,636,638],{"href":637},"\u002Ftools\u002Faudio-convert-wasm","音频格式转换"," - 转换音频格式",[18,641,642],{"id":642},"总结",[14,644,645],{},"视频格式转换是解决兼容性问题的关键工具：",[27,647,648,654,660,666],{},[30,649,650,653],{},[33,651,652],{},"选择格式","：MP4最通用",[30,655,656,659],{},[33,657,658],{},"配置参数","：平衡画质和体积",[30,661,662,665],{},[33,663,664],{},"开始转换","：一键格式转换",[30,667,668,671],{},[33,669,670],{},"下载使用","：获取目标格式",[14,673,674],{},"选择合适的视频格式，让您的视频在任何设备上流畅播放。",{"title":676,"searchDepth":677,"depth":677,"links":678},"",2,[679,683,690,694,700,701],{"id":20,"depth":677,"text":21,"children":680},[681],{"id":25,"depth":682,"text":25},3,{"id":98,"depth":677,"text":99,"children":684},[685,686,687,688,689],{"id":102,"depth":682,"text":103},{"id":142,"depth":682,"text":143},{"id":210,"depth":682,"text":211},{"id":272,"depth":682,"text":273},{"id":309,"depth":682,"text":310},{"id":316,"depth":677,"text":316,"children":691},[692,693],{"id":319,"depth":682,"text":319},{"id":422,"depth":682,"text":422},{"id":481,"depth":677,"text":481,"children":695},[696,697,698,699],{"id":484,"depth":682,"text":485},{"id":520,"depth":682,"text":521},{"id":551,"depth":682,"text":552},{"id":576,"depth":682,"text":577},{"id":611,"depth":677,"text":611},{"id":642,"depth":677,"text":642},"media-processing","视频格式转换的完整指南。支持16种输出格式，可自定义视频编码、音频编码、分辨率和比特率，在线将MP4\u002FAVI\u002FMKV\u002FMOV等格式互相转换。","md",[706,707,708,709,710,711],"视频格式转换","视频转MP4","视频转换器","在线视频转换","MKV转MP4","AVI转MP4",{},true,"\u002Fhelp\u002Fguides\u002Fvideo-to-video",6,[717,718,719],"video-convert-wasm","audio-extract-wasm","video-compress-wasm",{"title":5,"description":703},"help\u002Fguides\u002Fvideo-to-video","guide","2026-05-10","THRJSLFriDa-15q_-YyjKDcm5LlL6Em-2pNxo_Ryl_0",[726,1283,1800],{"id":727,"title":728,"body":729,"category":702,"description":1269,"extension":704,"keywords":1270,"meta":1275,"navigation":713,"path":1276,"readingTime":1277,"relatedTools":1278,"seo":1279,"stem":1280,"type":722,"updatedAt":1281,"__hash__":1282},"guides\u002Fhelp\u002Fguides\u002Fvideo-compress.md","视频压缩使用指南：减小视频文件大小",{"type":7,"value":730,"toc":1245},[731,734,737,741,743,809,813,815,820,825,836,840,844,848,853,864,869,880,885,896,900,904,915,919,930,934,937,951,955,965,969,972,975,978,1039,1042,1046,1057,1062,1073,1077,1088,1090,1094,1098,1111,1115,1119,1130,1134,1139,1150,1154,1158,1168,1172,1185,1187,1212,1214,1217,1242],[10,732,728],{"id":733},"视频压缩使用指南减小视频文件大小",[14,735,736],{},"视频文件过大是常见困扰。根据Cisco年度互联网报告，视频流量占全球互联网流量的82%以上，平均视频文件大小以每年15%的速度增长。无论是发送给朋友、上传到网站，还是存储到移动设备，压缩视频能有效解决这些问题。本指南将介绍如何使用91AI工具压缩视频。",[18,738,740],{"id":739},"为什么需要压缩视频","为什么需要压缩视频？",[23,742,25],{"id":25},[27,744,745,761,777,793],{},[30,746,747,750],{},[33,748,749],{},"社交分享",[37,751,752,755,758],{},[30,753,754],{},"平台上传限制",[30,756,757],{},"加快上传速度",[30,759,760],{},"节省流量",[30,762,763,766],{},[33,764,765],{},"邮件发送",[37,767,768,771,774],{},[30,769,770],{},"附件大小限制",[30,772,773],{},"快速发送接收",[30,775,776],{},"不占用邮箱空间",[30,778,779,782],{},[33,780,781],{},"存储管理",[37,783,784,787,790],{},[30,785,786],{},"减少硬盘占用",[30,788,789],{},"备份速度更快",[30,791,792],{},"手机存储优化",[30,794,795,798],{},[33,796,797],{},"网络播放",[37,799,800,803,806],{},[30,801,802],{},"减少缓冲时间",[30,804,805],{},"降低带宽需求",[30,807,808],{},"流畅播放体验",[18,810,812],{"id":811},"使用91ai压缩视频","使用91AI压缩视频",[23,814,103],{"id":102},[14,816,106,817,112],{},[108,818,819],{"href":571},"91AI 视频压缩工具",[14,821,822,118],{},[33,823,824],{},"支持格式",[37,826,827,830,833],{},[30,828,829],{},"MP4、MOV、AVI",[30,831,832],{},"MKV、WMV、FLV",[30,834,835],{},"WebM、M4V等",[14,837,838,118],{},[33,839,134],{},[37,841,842],{},[30,843,139],{},[23,845,847],{"id":846},"第二步选择压缩强度","第二步：选择压缩强度",[14,849,850,118],{},[33,851,852],{},"弱压缩（75%）",[37,854,855,858,861],{},[30,856,857],{},"轻微减小大小",[30,859,860],{},"画质几乎无损",[30,862,863],{},"适合高质量需求",[14,865,866,118],{},[33,867,868],{},"一般压缩（50%推荐）",[37,870,871,874,877],{},[30,872,873],{},"平衡大小和质量",[30,875,876],{},"适合大多数场景",[30,878,879],{},"推荐首选",[14,881,882,118],{},[33,883,884],{},"强压缩（30%）",[37,886,887,890,893],{},[30,888,889],{},"大幅减小大小",[30,891,892],{},"画质有所下降",[30,894,895],{},"适合网络分享",[23,897,899],{"id":898},"第三步选择输出格式","第三步：选择输出格式",[14,901,902,118],{},[33,903,148],{},[37,905,906,909,912],{},[30,907,908],{},"兼容性好",[30,910,911],{},"压缩率高",[30,913,914],{},"通用选择",[14,916,917,118],{},[33,918,196],{},[37,920,921,924,927],{},[30,922,923],{},"MOV：苹果设备",[30,925,926],{},"AVI：Windows兼容",[30,928,929],{},"FLV：网页播放",[23,931,933],{"id":932},"第四步开始压缩","第四步：开始压缩",[14,935,936],{},"点击\"开始压缩\"，系统会：",[27,938,939,942,945,948],{},[30,940,941],{},"分析视频内容",[30,943,944],{},"应用压缩算法",[30,946,947],{},"调整分辨率码率",[30,949,950],{},"生成压缩文件",[14,952,953,118],{},[33,954,295],{},[37,956,957,959,962],{},[30,958,300],{},[30,960,961],{},"5分钟视频：5-10分钟",[30,963,964],{},"与视频长度相关",[23,966,968],{"id":967},"第五步下载视频","第五步：下载视频",[14,970,971],{},"查看压缩前后对比，下载压缩后的视频。",[18,973,974],{"id":974},"压缩效果参考",[23,976,977],{"id":977},"典型压缩率",[321,979,980,996],{},[324,981,982],{},[327,983,984,987,990,993],{},[330,985,986],{},"原文件",[330,988,989],{},"弱压缩",[330,991,992],{},"一般",[330,994,995],{},"强压缩",[343,997,998,1012,1026],{},[327,999,1000,1003,1006,1009],{},[348,1001,1002],{},"100MB",[348,1004,1005],{},"75MB",[348,1007,1008],{},"50MB",[348,1010,1011],{},"30MB",[327,1013,1014,1017,1020,1023],{},[348,1015,1016],{},"500MB",[348,1018,1019],{},"375MB",[348,1021,1022],{},"250MB",[348,1024,1025],{},"150MB",[327,1027,1028,1031,1034,1036],{},[348,1029,1030],{},"1GB",[348,1032,1033],{},"750MB",[348,1035,1016],{},[348,1037,1038],{},"300MB",[23,1040,1041],{"id":1041},"画质对比",[14,1043,1044,118],{},[33,1045,989],{},[37,1047,1048,1051,1054],{},[30,1049,1050],{},"肉眼难辨差异",[30,1052,1053],{},"适合专业用途",[30,1055,1056],{},"文件减小有限",[14,1058,1059,118],{},[33,1060,1061],{},"一般压缩",[37,1063,1064,1067,1070],{},[30,1065,1066],{},"轻微画质下降",[30,1068,1069],{},"日常观看可接受",[30,1071,1072],{},"推荐平衡点",[14,1074,1075,118],{},[33,1076,995],{},[37,1078,1079,1082,1085],{},[30,1080,1081],{},"明显画质下降",[30,1083,1084],{},"适合小屏幕观看",[30,1086,1087],{},"文件大幅减小",[18,1089,481],{"id":481},[23,1091,1093],{"id":1092},"q1-压缩后画质太差","Q1: 压缩后画质太差？",[14,1095,1096,118],{},[33,1097,506],{},[37,1099,1100,1103,1108],{},[30,1101,1102],{},"选择弱压缩强度",[30,1104,1105,1106],{},"或",[108,1107,706],{"href":110},[30,1109,1110],{},"提高输出分辨率",[23,1112,1114],{"id":1113},"q2-压缩后文件还是太大","Q2: 压缩后文件还是太大？",[14,1116,1117,118],{},[33,1118,557],{},[37,1120,1121,1124,1127],{},[30,1122,1123],{},"选择强压缩",[30,1125,1126],{},"分段压缩后上传",[30,1128,1129],{},"使用网盘分享链接",[23,1131,1133],{"id":1132},"q3-可以压缩特定片段吗","Q3: 可以压缩特定片段吗？",[14,1135,1136,118],{},[33,1137,1138],{},"回答",[37,1140,1141,1144,1147],{},[30,1142,1143],{},"本工具压缩完整视频",[30,1145,1146],{},"如需片段，先用剪辑软件",[30,1148,1149],{},"再使用本工具压缩",[23,1151,1153],{"id":1152},"q4-压缩失败怎么办","Q4: 压缩失败怎么办？",[14,1155,1156,118],{},[33,1157,582],{},[37,1159,1160,1162,1165],{},[30,1161,587],{},[30,1163,1164],{},"格式不支持",[30,1166,1167],{},"文件过大",[14,1169,1170,118],{},[33,1171,506],{},[37,1173,1174,1177,1182],{},[30,1175,1176],{},"检查视频能否正常播放",[30,1178,1179,1180],{},"尝试",[108,1181,706],{"href":110},[30,1183,1184],{},"分割视频后处理",[18,1186,611],{"id":611},[37,1188,1189,1196,1203],{},[30,1190,1191,1195],{},[33,1192,1193],{},[108,1194,706],{"href":110}," - 转换视频格式",[30,1197,1198,1202],{},[33,1199,1200],{},[108,1201,629],{"href":628}," - 提取音频",[30,1204,1205,1211],{},[33,1206,1207],{},[108,1208,1210],{"href":1209},"\u002Ftools\u002Faudio-compress-wasm","音频压缩"," - 压缩音频文件",[18,1213,642],{"id":642},[14,1215,1216],{},"视频压缩是管理视频文件的有效方式：",[27,1218,1219,1225,1230,1236],{},[30,1220,1221,1224],{},[33,1222,1223],{},"选择强度","：平衡大小和质量",[30,1226,1227,1229],{},[33,1228,652],{},"：MP4通用推荐",[30,1231,1232,1235],{},[33,1233,1234],{},"执行压缩","：一键完成处理",[30,1237,1238,1241],{},[33,1239,1240],{},"检查结果","：确认满足需求",[14,1243,1244],{},"合理压缩视频，轻松分享和存储您的视频内容。",{"title":676,"searchDepth":677,"depth":677,"links":1246},[1247,1250,1257,1261,1267,1268],{"id":739,"depth":677,"text":740,"children":1248},[1249],{"id":25,"depth":682,"text":25},{"id":811,"depth":677,"text":812,"children":1251},[1252,1253,1254,1255,1256],{"id":102,"depth":682,"text":103},{"id":846,"depth":682,"text":847},{"id":898,"depth":682,"text":899},{"id":932,"depth":682,"text":933},{"id":967,"depth":682,"text":968},{"id":974,"depth":677,"text":974,"children":1258},[1259,1260],{"id":977,"depth":682,"text":977},{"id":1041,"depth":682,"text":1041},{"id":481,"depth":677,"text":481,"children":1262},[1263,1264,1265,1266],{"id":1092,"depth":682,"text":1093},{"id":1113,"depth":682,"text":1114},{"id":1132,"depth":682,"text":1133},{"id":1152,"depth":682,"text":1153},{"id":611,"depth":677,"text":611},{"id":642,"depth":677,"text":642},"学习如何压缩视频文件，调整压缩强度和输出格式，在保持可接受画质的同时大幅减小文件大小。",[620,1271,1272,1273,1274],"视频瘦身","减小视频","视频优化","在线压缩",{},"\u002Fhelp\u002Fguides\u002Fvideo-compress",5,[719,717,718],{"title":728,"description":1269},"help\u002Fguides\u002Fvideo-compress","2026-05-03","sEJqCCE9sUvMdvYDBTyBc0OeYK3DQva-XdWK0lXFkac",{"id":1284,"title":1285,"body":1286,"category":702,"description":1786,"extension":704,"keywords":1787,"meta":1793,"navigation":713,"path":1794,"readingTime":1277,"relatedTools":1795,"seo":1797,"stem":1798,"type":722,"updatedAt":723,"__hash__":1799},"guides\u002Fhelp\u002Fguides\u002Fvideo-to-audio.md","视频转音频使用指南：从视频中提取音乐和声音",{"type":7,"value":1287,"toc":1763},[1288,1291,1294,1298,1301,1367,1371,1373,1378,1382,1396,1400,1407,1409,1414,1424,1429,1440,1444,1455,1459,1462,1476,1480,1491,1495,1498,1501,1504,1573,1576,1581,1589,1594,1602,1604,1608,1612,1623,1627,1638,1642,1647,1658,1662,1666,1677,1681,1685,1693,1697,1709,1711,1732,1734,1737,1760],[10,1289,1285],{"id":1290},"视频转音频使用指南从视频中提取音乐和声音",[14,1292,1293],{},"从视频中提取音频是日常工作生活中最常用的媒体处理需求之一。根据Grand View Research的报告，全球音频编辑市场规模在2025年已达到35亿美元，视频转音频的需求以每年12%的速度增长。无论是提取MV中的背景音乐、保存在线课程的语音内容，还是分离视频中的音轨素材，91AI的视频转音频工具都能在浏览器中直接完成，无需安装任何软件。",[18,1295,1297],{"id":1296},"为什么需要视频转音频","为什么需要视频转音频？",[23,1299,1300],{"id":1300},"使用场景",[27,1302,1303,1319,1335,1351],{},[30,1304,1305,1308],{},[33,1306,1307],{},"提取音乐",[37,1309,1310,1313,1316],{},[30,1311,1312],{},"保存MV中的歌曲",[30,1314,1315],{},"提取演唱会音频",[30,1317,1318],{},"收藏视频配乐",[30,1320,1321,1324],{},[33,1322,1323],{},"会议记录",[37,1325,1326,1329,1332],{},[30,1327,1328],{},"提取会议视频音频",[30,1330,1331],{},"方便后续听写整理",[30,1333,1334],{},"减小文件大小便于分享",[30,1336,1337,1340],{},[33,1338,1339],{},"内容创作",[37,1341,1342,1345,1348],{},[30,1343,1344],{},"提取素材音频",[30,1346,1347],{},"制作音频剪辑",[30,1349,1350],{},"播客内容制作",[30,1352,1353,1356],{},[33,1354,1355],{},"节省存储",[37,1357,1358,1361,1364],{},[30,1359,1360],{},"音频文件比视频小",[30,1362,1363],{},"仅保留需要的声音",[30,1365,1366],{},"便于移动设备播放",[18,1368,1370],{"id":1369},"使用91ai提取音频","使用91AI提取音频",[23,1372,103],{"id":102},[14,1374,106,1375,112],{},[108,1376,1377],{"href":628},"91AI 视频转音频工具",[14,1379,1380,118],{},[33,1381,824],{},[37,1383,1384,1387,1390,1393],{},[30,1385,1386],{},"MP4、MKV、MOV",[30,1388,1389],{},"AVI、WMV、M4V",[30,1391,1392],{},"FLV、WebM、3GP",[30,1394,1395],{},"等多种常见格式",[14,1397,1398,118],{},[33,1399,134],{},[37,1401,1402,1404],{},[30,1403,139],{},[30,1405,1406],{},"适合大多数视频文件",[23,1408,143],{"id":142},[14,1410,1411,118],{},[33,1412,1413],{},"MP3（推荐）",[37,1415,1416,1419,1422],{},[30,1417,1418],{},"通用性强，兼容性好",[30,1420,1421],{},"压缩率高，文件较小",[30,1423,876],{},[14,1425,1426,118],{},[33,1427,1428],{},"WAV",[37,1430,1431,1434,1437],{},[30,1432,1433],{},"无损音质，保真度高",[30,1435,1436],{},"文件较大",[30,1438,1439],{},"适合音频编辑",[14,1441,1442,118],{},[33,1443,196],{},[37,1445,1446,1449,1452],{},[30,1447,1448],{},"AAC：苹果设备推荐",[30,1450,1451],{},"FLAC：高品质无损",[30,1453,1454],{},"OGG：开源格式",[23,1456,1458],{"id":1457},"第三步开始转换","第三步：开始转换",[14,1460,1461],{},"点击\"开始转换\"按钮，系统会自动：",[27,1463,1464,1467,1470,1473],{},[30,1465,1466],{},"解析视频文件",[30,1468,1469],{},"提取音轨数据",[30,1471,1472],{},"转换为目标格式",[30,1474,1475],{},"生成音频文件",[14,1477,1478,118],{},[33,1479,295],{},[37,1481,1482,1485,1488],{},[30,1483,1484],{},"1分钟视频：10-30秒",[30,1486,1487],{},"5分钟视频：1-2分钟",[30,1489,1490],{},"取决于视频长度和格式",[23,1492,1494],{"id":1493},"第四步下载音频","第四步：下载音频",[14,1496,1497],{},"转换完成后下载音频文件。",[18,1499,1500],{"id":1500},"音质与格式选择",[23,1502,1503],{"id":1503},"格式对比",[321,1505,1506,1520],{},[324,1507,1508],{},[327,1509,1510,1512,1515,1518],{},[330,1511,332],{},[330,1513,1514],{},"音质",[330,1516,1517],{},"大小",[330,1519,341],{},[343,1521,1522,1535,1547,1560],{},[327,1523,1524,1527,1529,1532],{},[348,1525,1526],{},"MP3",[348,1528,448],{},[348,1530,1531],{},"小",[348,1533,1534],{},"日常播放、分享",[327,1536,1537,1540,1542,1544],{},[348,1538,1539],{},"AAC",[348,1541,448],{},[348,1543,1531],{},[348,1545,1546],{},"苹果设备",[327,1548,1549,1551,1554,1557],{},[348,1550,1428],{},[348,1552,1553],{},"无损",[348,1555,1556],{},"大",[348,1558,1559],{},"专业编辑",[327,1561,1562,1565,1567,1570],{},[348,1563,1564],{},"FLAC",[348,1566,1553],{},[348,1568,1569],{},"较大",[348,1571,1572],{},"发烧友收藏",[23,1574,1575],{"id":1575},"码率选择",[14,1577,1578,118],{},[33,1579,1580],{},"默认设置",[37,1582,1583,1586],{},[30,1584,1585],{},"系统会自动选择合适码率",[30,1587,1588],{},"平衡音质和大小",[14,1590,1591,118],{},[33,1592,1593],{},"如需调整",[37,1595,1596,1599],{},[30,1597,1598],{},"高码率：音质更好，文件更大",[30,1600,1601],{},"低码率：文件更小，音质略降",[18,1603,481],{"id":481},[23,1605,1607],{"id":1606},"q1-转换后音质差","Q1: 转换后音质差？",[14,1609,1610,118],{},[33,1611,490],{},[37,1613,1614,1617,1620],{},[30,1615,1616],{},"原视频音质本身不佳",[30,1618,1619],{},"选择了过低码率",[30,1621,1622],{},"压缩过度",[14,1624,1625,118],{},[33,1626,506],{},[37,1628,1629,1632,1635],{},[30,1630,1631],{},"选择无损格式（WAV\u002FFLAC）",[30,1633,1634],{},"使用高码率MP3",[30,1636,1637],{},"检查原视频音质",[23,1639,1641],{"id":1640},"q2-视频有多音轨","Q2: 视频有多音轨？",[14,1643,1644,118],{},[33,1645,1646],{},"处理",[37,1648,1649,1652,1655],{},[30,1650,1651],{},"默认提取主音轨",[30,1653,1654],{},"如需特定音轨，建议专业软件",[30,1656,1657],{},"可尝试多次提取",[23,1659,1661],{"id":1660},"q3-可以批量处理吗","Q3: 可以批量处理吗？",[14,1663,1664,118],{},[33,1665,1138],{},[37,1667,1668,1671,1674],{},[30,1669,1670],{},"支持批量上传",[30,1672,1673],{},"逐个转换处理",[30,1675,1676],{},"分别下载音频文件",[23,1678,1680],{"id":1679},"q4-转换失败怎么办","Q4: 转换失败怎么办？",[14,1682,1683,118],{},[33,1684,582],{},[37,1686,1687,1689,1691],{},[30,1688,587],{},[30,1690,1164],{},[30,1692,1167],{},[14,1694,1695,118],{},[33,1696,506],{},[37,1698,1699,1702,1706],{},[30,1700,1701],{},"检查视频是否正常播放",[30,1703,1179,1704],{},[108,1705,706],{"href":110},[30,1707,1708],{},"分割后分批处理",[18,1710,611],{"id":611},[37,1712,1713,1719,1726],{},[30,1714,1715,639],{},[33,1716,1717],{},[108,1718,638],{"href":637},[30,1720,1721,1725],{},[33,1722,1723],{},[108,1724,1210],{"href":1209}," - 减小音频文件大小",[30,1727,1728,1195],{},[33,1729,1730],{},[108,1731,706],{"href":110},[18,1733,642],{"id":642},[14,1735,1736],{},"视频转音频是实用的媒体处理功能：",[27,1738,1739,1744,1750,1755],{},[30,1740,1741,1743],{},[33,1742,652],{},"：MP3通用，WAV无损",[30,1745,1746,1749],{},[33,1747,1748],{},"上传视频","：支持多种常见格式",[30,1751,1752,1754],{},[33,1753,664],{},"：一键提取音频",[30,1756,1757,1759],{},[33,1758,670],{},"：获取独立音频文件",[14,1761,1762],{},"轻松从视频中提取音频，满足各种使用需求。",{"title":676,"searchDepth":677,"depth":677,"links":1764},[1765,1768,1774,1778,1784,1785],{"id":1296,"depth":677,"text":1297,"children":1766},[1767],{"id":1300,"depth":682,"text":1300},{"id":1369,"depth":677,"text":1370,"children":1769},[1770,1771,1772,1773],{"id":102,"depth":682,"text":103},{"id":142,"depth":682,"text":143},{"id":1457,"depth":682,"text":1458},{"id":1493,"depth":682,"text":1494},{"id":1500,"depth":677,"text":1500,"children":1775},[1776,1777],{"id":1503,"depth":682,"text":1503},{"id":1575,"depth":682,"text":1575},{"id":481,"depth":677,"text":481,"children":1779},[1780,1781,1782,1783],{"id":1606,"depth":682,"text":1607},{"id":1640,"depth":682,"text":1641},{"id":1660,"depth":682,"text":1661},{"id":1679,"depth":682,"text":1680},{"id":611,"depth":677,"text":611},{"id":642,"depth":677,"text":642},"从视频中提取音乐的完整指南。支持MP4\u002FMKV\u002FMOV转MP3\u002FWAV\u002FAAC\u002FFLAC，无需安装软件，在线快速提取视频背景音乐和人声。",[629,1788,1789,1790,1791,1792],"视频转MP3","提取视频音频","视频提取背景音乐","视频音频分离","在线提取音频",{},"\u002Fhelp\u002Fguides\u002Fvideo-to-audio",[718,717,1796],"audio-convert-wasm",{"title":1285,"description":1786},"help\u002Fguides\u002Fvideo-to-audio","ZXUjBJJTuhMshi7eU3fWX8jGSnhP9BDz_om_j4dhQMQ",{"id":4,"title":5,"body":1801,"category":702,"description":703,"extension":704,"keywords":2307,"meta":2308,"navigation":713,"path":714,"readingTime":715,"relatedTools":2309,"seo":2310,"stem":721,"type":722,"updatedAt":723,"__hash__":724},{"type":7,"value":1802,"toc":2283},[1803,1805,1807,1809,1811,1861,1863,1865,1869,1873,1881,1885,1889,1891,1895,1903,1907,1915,1919,1927,1931,1939,1941,1945,1953,1957,1965,1969,1975,1979,1985,1987,1989,1999,2003,2011,2013,2015,2017,2019,2095,2097,2143,2145,2147,2151,2159,2163,2171,2173,2177,2183,2187,2195,2197,2201,2211,2213,2217,2225,2229,2237,2239,2259,2261,2263,2281],[10,1804,5],{"id":12},[14,1806,16],{},[18,1808,21],{"id":20},[23,1810,25],{"id":25},[27,1812,1813,1825,1837,1849],{},[30,1814,1815,1817],{},[33,1816,35],{},[37,1818,1819,1821,1823],{},[30,1820,41],{},[30,1822,44],{},[30,1824,47],{},[30,1826,1827,1829],{},[33,1828,52],{},[37,1830,1831,1833,1835],{},[30,1832,57],{},[30,1834,60],{},[30,1836,63],{},[30,1838,1839,1841],{},[33,1840,68],{},[37,1842,1843,1845,1847],{},[30,1844,73],{},[30,1846,76],{},[30,1848,79],{},[30,1850,1851,1853],{},[33,1852,84],{},[37,1854,1855,1857,1859],{},[30,1856,89],{},[30,1858,92],{},[30,1860,95],{},[18,1862,99],{"id":98},[23,1864,103],{"id":102},[14,1866,106,1867,112],{},[108,1868,111],{"href":110},[14,1870,1871,118],{},[33,1872,117],{},[37,1874,1875,1877,1879],{},[30,1876,123],{},[30,1878,126],{},[30,1880,129],{},[14,1882,1883,118],{},[33,1884,134],{},[37,1886,1887],{},[30,1888,139],{},[23,1890,143],{"id":142},[14,1892,1893,118],{},[33,1894,148],{},[37,1896,1897,1899,1901],{},[30,1898,153],{},[30,1900,156],{},[30,1902,159],{},[14,1904,1905,118],{},[33,1906,164],{},[37,1908,1909,1911,1913],{},[30,1910,169],{},[30,1912,172],{},[30,1914,175],{},[14,1916,1917,118],{},[33,1918,180],{},[37,1920,1921,1923,1925],{},[30,1922,185],{},[30,1924,188],{},[30,1926,191],{},[14,1928,1929,118],{},[33,1930,196],{},[37,1932,1933,1935,1937],{},[30,1934,201],{},[30,1936,204],{},[30,1938,207],{},[23,1940,211],{"id":210},[14,1942,1943,118],{},[33,1944,216],{},[37,1946,1947,1949,1951],{},[30,1948,221],{},[30,1950,224],{},[30,1952,227],{},[14,1954,1955,118],{},[33,1956,232],{},[37,1958,1959,1961,1963],{},[30,1960,237],{},[30,1962,240],{},[30,1964,243],{},[14,1966,1967,118],{},[33,1968,248],{},[37,1970,1971,1973],{},[30,1972,253],{},[30,1974,256],{},[14,1976,1977,118],{},[33,1978,261],{},[37,1980,1981,1983],{},[30,1982,266],{},[30,1984,269],{},[23,1986,273],{"id":272},[14,1988,276],{},[27,1990,1991,1993,1995,1997],{},[30,1992,281],{},[30,1994,284],{},[30,1996,287],{},[30,1998,290],{},[14,2000,2001,118],{},[33,2002,295],{},[37,2004,2005,2007,2009],{},[30,2006,300],{},[30,2008,303],{},[30,2010,306],{},[23,2012,310],{"id":309},[14,2014,313],{},[18,2016,316],{"id":316},[23,2018,319],{"id":319},[321,2020,2021,2033],{},[324,2022,2023],{},[327,2024,2025,2027,2029,2031],{},[330,2026,332],{},[330,2028,335],{},[330,2030,338],{},[330,2032,341],{},[343,2034,2035,2045,2055,2065,2075,2085],{},[327,2036,2037,2039,2041,2043],{},[348,2038,350],{},[348,2040,353],{},[348,2042,356],{},[348,2044,359],{},[327,2046,2047,2049,2051,2053],{},[348,2048,164],{},[348,2050,366],{},[348,2052,366],{},[348,2054,371],{},[327,2056,2057,2059,2061,2063],{},[348,2058,180],{},[348,2060,356],{},[348,2062,380],{},[348,2064,383],{},[327,2066,2067,2069,2071,2073],{},[348,2068,388],{},[348,2070,366],{},[348,2072,366],{},[348,2074,395],{},[327,2076,2077,2079,2081,2083],{},[348,2078,400],{},[348,2080,366],{},[348,2082,356],{},[348,2084,407],{},[327,2086,2087,2089,2091,2093],{},[348,2088,412],{},[348,2090,380],{},[348,2092,366],{},[348,2094,419],{},[23,2096,422],{"id":422},[321,2098,2099,2111],{},[324,2100,2101],{},[327,2102,2103,2105,2107,2109],{},[330,2104,431],{},[330,2106,338],{},[330,2108,436],{},[330,2110,335],{},[343,2112,2113,2123,2133],{},[327,2114,2115,2117,2119,2121],{},[348,2116,445],{},[348,2118,448],{},[348,2120,451],{},[348,2122,454],{},[327,2124,2125,2127,2129,2131],{},[348,2126,459],{},[348,2128,451],{},[348,2130,451],{},[348,2132,466],{},[327,2134,2135,2137,2139,2141],{},[348,2136,471],{},[348,2138,451],{},[348,2140,448],{},[348,2142,478],{},[18,2144,481],{"id":481},[23,2146,485],{"id":484},[14,2148,2149,118],{},[33,2150,490],{},[37,2152,2153,2155,2157],{},[30,2154,495],{},[30,2156,498],{},[30,2158,501],{},[14,2160,2161,118],{},[33,2162,506],{},[37,2164,2165,2167,2169],{},[30,2166,511],{},[30,2168,514],{},[30,2170,517],{},[23,2172,521],{"id":520},[14,2174,2175,118],{},[33,2176,490],{},[37,2178,2179,2181],{},[30,2180,530],{},[30,2182,533],{},[14,2184,2185,118],{},[33,2186,506],{},[37,2188,2189,2191,2193],{},[30,2190,542],{},[30,2192,545],{},[30,2194,548],{},[23,2196,552],{"id":551},[14,2198,2199,118],{},[33,2200,557],{},[37,2202,2203,2205,2207],{},[30,2204,562],{},[30,2206,565],{},[30,2208,568,2209,573],{},[108,2210,572],{"href":571},[23,2212,577],{"id":576},[14,2214,2215,118],{},[33,2216,582],{},[37,2218,2219,2221,2223],{},[30,2220,587],{},[30,2222,590],{},[30,2224,593],{},[14,2226,2227,118],{},[33,2228,506],{},[37,2230,2231,2233,2235],{},[30,2232,602],{},[30,2234,605],{},[30,2236,608],{},[18,2238,611],{"id":611},[37,2240,2241,2247,2253],{},[30,2242,2243,621],{},[33,2244,2245],{},[108,2246,620],{"href":571},[30,2248,2249,630],{},[33,2250,2251],{},[108,2252,629],{"href":628},[30,2254,2255,639],{},[33,2256,2257],{},[108,2258,638],{"href":637},[18,2260,642],{"id":642},[14,2262,645],{},[27,2264,2265,2269,2273,2277],{},[30,2266,2267,653],{},[33,2268,652],{},[30,2270,2271,659],{},[33,2272,658],{},[30,2274,2275,665],{},[33,2276,664],{},[30,2278,2279,671],{},[33,2280,670],{},[14,2282,674],{},{"title":676,"searchDepth":677,"depth":677,"links":2284},[2285,2288,2295,2299,2305,2306],{"id":20,"depth":677,"text":21,"children":2286},[2287],{"id":25,"depth":682,"text":25},{"id":98,"depth":677,"text":99,"children":2289},[2290,2291,2292,2293,2294],{"id":102,"depth":682,"text":103},{"id":142,"depth":682,"text":143},{"id":210,"depth":682,"text":211},{"id":272,"depth":682,"text":273},{"id":309,"depth":682,"text":310},{"id":316,"depth":677,"text":316,"children":2296},[2297,2298],{"id":319,"depth":682,"text":319},{"id":422,"depth":682,"text":422},{"id":481,"depth":677,"text":481,"children":2300},[2301,2302,2303,2304],{"id":484,"depth":682,"text":485},{"id":520,"depth":682,"text":521},{"id":551,"depth":682,"text":552},{"id":576,"depth":682,"text":577},{"id":611,"depth":677,"text":611},{"id":642,"depth":677,"text":642},[706,707,708,709,710,711],{},[717,718,719],{"title":5,"description":703},1778422056207]