How to Add MP3 Audio to MP4 Video Easily?

Jul 22, 2022
  • Download Download the powerful MP4 and MP3 merger
  • Step 1. Add source MP4 files into the software;
  • Step 2. Choose MP4 as output format;
  • Step 3. Put MP3 audio on the video;
  • Step 4. Export the video with new audio track.
Quick Navigation
How to Add MP3 to MP4?
Step 1. Import MP4 File
Step 2. Pick Output Format
Step 3. Put MP3 over MP4
Step 4. Export New File
How to Merge MP3 and MP4 with VLC?

Sometimes, we want to replace the audio with the desired background music in MP4, MKV, or other videos. When we download files but there’s no sound, we may add new audio tracks for a better watching experience. And many people want to add their local MP3 to MP4 but don’t know how to achieve that. No worries! This article will give easy solutions to add MP3 to MP4. Just follow the guide below.

How to Add MP3 to MP4 Easily?

MP4 add MP3 is not a difficult task if you use a good video and audio merger. Here, I’d recommend WonderFox HD Video Converter Factory Pro – a professional program designed to process types of a/v files. It supports various audio formats including MP3, M4A, WAV, FLAC, etc. and enables you to replace as well as add multiple audio tracks to an MP4 file without effort. Similarly, this program allows you to put audio over other video files in simple steps. The whole process is easy and fast. Free downloadFree download this software and follow the instruction below.

Add MP3 Tracks to MP4

HD Video Converter Factory Pro makes it easier than ever to add an audio track to video files. It offers the most effective way to put MP3 over MP4, combine WAV and WebM, and the like. Download it to add your own soundtrack now!

Download for Free
Download for Free

Step 1. Import MP4 File

Launch HD Video Converter Factory Pro and open the Converter on the home interface. Click Add Files to import your MP4 video. Or drag multiple files into the software for batch conversion.

Step 2. Pick Output Format

Click the format image on the right side of the interface. Go to the Video category and choose MP4 as the target format.

Tips. HD Video Converter Factory Pro offers a wide range of output video formats, and you can choose other formats to convert the original MP4 video. But if you want to add multiple audio tracks to your video, choose MP4, MKV, or MOV.

Hot Search: Add Audio Track to MP4Add Audio to MKV without Re-encoding

Step 3. Put MP3 over MP4

There are several editing tools below the imported video. Click the second “+” button beside the sound icon to add a local audio file. You can add multiple MP3 audio files into MP4 and check the wanted audio tracks.

Step 4. Export New File

Click the inverted triangle button at the bottom to specify an output path. Press Run to merge MP3 and MP4. A window will pop up when the process is over. Then you can view the new video with desired audio freely.


How to Merge MP3 and MP4 with VLC?

VLC is not only a multi-platform media player but also a useful video converter that you can use to add audio to video. It supports various audio files like MP3, AAC, FLAC, etc. And it’s easy to add MP3 audio to MP4 video in VLC if you are familiar with this software. Here’s how it works:

Step 1. Download VLC Media Player on your PC and launch it after installing.

Step 2. Click Media on the toolbar and choose Open Multiple Files. In the new window, press the Add button to import your MP4 file.

Step 3. Tick on the Show more options checkbox > Play another synchronously (extra audio file, ...). Then click the Browse button.

Step 4. Now, click Add to choose a local MP3 file and load it to the new window. Then click Select, and you can see the extra media is added successfully.

Step 5. Click the Play button at the bottom. Then you can watch the video along with the audio you added in VLC Media Player.


Final Words:

This article has introduced two useful MP3 and MP4 combiners with specific tutorials. Can you add MP3 to MP4 video with ease now? Finally, hope you will like this post. Thanks for reading!

Similar Articles

Increase MP3 Volume

Add Audio to WEBM

Extract Audio from MP4

Not only Add MP3 to MP4, MKV, MOV...
  • Convert video/audio files to 500+ formats and devices;
  • Download MP3, MP4, WEBM, and other files from 1000+ sites;
  • Compress large files to smaller ones for saving storage space;
  • Add/remove subtitles, extract/remove audio from video;
  • Record screen activities with internal audio in high quality;
  • Make GIFs from video frames or photo sequences;
  • Edit video by trimming, cropping, rotating, watermarking, etc.
Download for Free
Download for Free
Specialized in multimedia software solutions.
Since 2009

Terms and Conditions | Privacy Policy | License Agreement | Copyright © 2009-2022 WonderFox Soft, Inc.All Rights Reserved