How to Add .MP3 to .MP4 file Win10

How to Add MP3 Audio to MP4 Video

Download Now! Best Add MP3 Song to MP4 Video Application for Microsoft Win

Select Effect function:

Then:

How to add .MP3 to .MP4 file Win10

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

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