Adding Sound to .MP4, Quality Windows 10 64bit Software to Add Merging mixing MP3 background music song audio track and MP4 video file for Win 10 64bit, Win 8.1, Win 7 computer.

Add MP3 audio to MP4 files Windows 10 64bit, MP4 extension format, mp4 video format is an abbreviated term for MPEG-4 Part 14. MPEG-4 is a multimedia container format. MP4 extension movie is most commonly used to store digital audio and digital video streams, but can also be used to store other data such as subtitles and still images. Like most modern container formats, MPEG-4 allows streaming over the Internet. The official filename extension for MPEG-4 is .mp4, thus the container format is often referred to simply as mp4 file.

With EasiestSoft Movie editing software, you can easily add MP3 audio track to your MP4 format video and save MP4 format as a new file. Download EasiestSoft Movie Editor now and learn how to combine MP3 music and MP4 video using the simple steps below.

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How to combine MP3 music audio track with MP4 video:

Select Effect function:

Then:

Windows 10 64bit Combine MP3 and MP4

  1. Click Add File button to open the MP4 movie file
  2. Click Add Music icon
  3. Click Load Music to import the MP3 auido file that you want to merge.
    • Drag and Drop to set music start and end postion
    • Check Repeat Music option if neeeded
  4. Start Add MP3 audio to MP4 file
  5. Open Output Folder to check the merged MP4 video

As you can see, adding MP3 sound to your MP4 videos is really easy with EasiestSoft Movie Editor.

How to Add MP3 to MP4 Video    

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Download It ( for Windows 10, Win 8, Win 7, Vista, XP )


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ADD MP3 TO MP4 VIDEO screenshot

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MOVIE EDITOR WINDOWS 10