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How to Embed Subtitles to MP4, AVI, FLV Videos Using Avidemux

Avidemux, a free video-editing application, includes filters that can embed subtitles (VobSub, DVB-T, ASS/SSA and SRT/SUB) into video files. If you want to play a video on a video player that doesn't support the subtitle file format, you can insert the subtitles directly into the video.?Now read on to learn the full guide how to embed subtitles to MP4, AVI, FLV videos using Avidemux.

Note: You will need to have the Xvid codec installed (recommended also if you're interested in publishing videos on Youtube), which is pretty standard for video encoding applications.

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1. Once you have loaded Avidemux up, press Ctrl + O to open your video (alternatively, go to File in the menu bar > Open) and select any AVI, MP4, or FLV video.

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2. If you want to trim part of the imported video, use the sliders to set start and end points. Otherwise, go ahead and select the Xvid codec/mode in the Video drop-down menu. This enables you to use filters, which you can't do in the default Copy Video mode.

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You'll get the Video Filter Manager window where you can select preset filters for common tasks, such as cropping, resizing, etc. Head to the?Subtitles?category, where you can choose to embed subtitles in SubRip text format (.srt), MicroDVD subtitle file format (.sub), or the more customizable SubStation Alpha file format (.ssa, .ass), which you saw on?How To Create Your Own Subtitles. You can get the subtitles in the latter format using?Subtitle Workshop, and?Aegisub, which are among?the best tools to edit subtitle files.

3. Double-click on the appropriate subtitle filter. Now select your subtitle file.

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If you're using the SSA subtitle filter like I am, there is really no need to adjust the line spacing, font scale, etc. since you probably specified those settings when you were creating your subtitles with, Aegisub for example, so the default values will do fine. If you downloaded the subtitles from the net, you can, of course, adjust these values.

Close out of the Video Filter Manager.

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Even though there's a "Preview" button, strangely enough, you won't be able to preview the video with the subtitles. If, however, you use any other filter, such as resize,?Preview?will work fine.

4. Choose Copy under Audio mode, although you can also use the LAME codec for MP3.

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Then select the video container/format (either FLV, MP4, AVI)?you want to save the video.

5. Save the video.

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The time taken to encode the video will depend on the length of the original video.

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That's it!

Editor's Note:

As you see, it's easy to attach subtitles to MP4, AVI, FLV videos using Avidemux. While, based on our test, Avidemux would crash sometimes when we try to save the video in FLV. If you wanna a more professional and easy-to-use tool to help you add subtitles to AVI, MP4, FLV, MKV and more movie files, you'd better turn to Brorsoft Blu-ray Video Converter Ultimate.

With this smart converter, you can add subtitles in .srt, .ass and .ssa to MKV, AVI, MP4, MOV, WMV, etc videos with just a few clicks. No installation of third-party tools is needed.?What's more, it also helps to set the subtitle size, subtitle style, etc according to your preference. Besides adding subtitle files to your video, it is an all-in-one program with many other functions, which enables you to edit videos, convert video, rip Blu-ray/DVD easily and quickly, etc. If you are running on Mac OS X to add external subtitles to MKV, MP4, AVI, etc, turn to Brorsoft?iMedia Converter for Mac.

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