工具/材料：以格式工厂V2.9为例。
1、首先打开格式工厂，点击“工具箱”图标。
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2、然后在该界面中，点击“混流”选项。
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3、之后在该界面中，勾选“关闭音效”选项。
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4、接着在该界面中，点击“添加文件”选项。
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5、之后在该界面中，选择视频文件，点击“打开”按钮。
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6、然后在该界面中，点击“添加文件”按钮。
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7、再者在该界面中，选择MP3音频文件，点击“打开”按钮。
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8、接着在该界面中，点击右上方“确定”选项。
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9、最后在该界面中，点击“开始”选项，即可把视频音频混合在一起。
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1、首先打开格式工厂，点击“工具箱”图标。
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2、然后在该界面中，点击“混流”选项。
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3、之后在该界面中，勾选“关闭音效”选项。
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4、接着在该界面中，点击“添加文件”选项。
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5、之后在该界面中，选择视频文件，点击“打开”按钮。
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6、然后在该界面中，点击“添加文件”按钮。
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7、再者在该界面中，选择MP3音频文件，点击“打开”按钮。
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8、接着在该界面中，点击右上方“确定”选项。
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9、最后在该界面中，点击“开始”选项，即可把视频音频混合在一起。
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温馨提示：答案为网友推荐，仅供参考
第1个回答 2019-08-28
工具/材料：以格式工厂V2.9为例。
1、首先打开格式工厂，点击“工具箱”图标。
2、然后在该界面中，点击“混流”选项。
3、之后在该界面中，勾选“关闭音效”选项。
4、接着在该界面中，点击“添加文件”选项。
5、之后在该界面中，选择视频文件，点击“打开”按钮。
6、然后在该界面中，点击“添加文件”按钮。
7、再者在该界面中，选择MP3音频文件，点击“打开”按钮。
8、接着在该界面中，点击右上方“确定”选项。
9、最后在该界面中，点击“开始”选项，即可把视频音频混合在一起。
第2个回答 推荐于2017-11-28
打开格式工厂（目前新版2.9），点软件下面的“高级”，再点“混流”，在弹出的面板中分别添加视频和音频文件。文件添加以后，在上面有一个“高质量和大小”，点它，在音频流里有一个“关闭音效”选项，选择“是”，选择好以后，一路确定，OK。
（因为我没有测试。如果这样做也关闭了混流后的音效，你可以将视频先关闭音效，再按以上方法混流，意思是分两步走。）本回答被网友采纳
（因为我没有测试。如果这样做也关闭了混流后的音效，你可以将视频先关闭音效，再按以上方法混流，意思是分两步走。）本回答被网友采纳
第3个回答 2012-02-14
使用格式工厂的混流操作，就可以用指定的音频文件替换掉视频的原声音
第4个回答 2012-02-14
格式工程应该不可以的，你可以用绘声绘影，premier
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