Top 2 Ways to Add MP3 to MP4

Top 2 Software to Add MP3 to MP4 with Detailed Steps

Jun 30, 2018, Posted by Shirley White

I have been trying to figure out how to combine the mp4 video from my camera with an mp3 audio track of music. I have multiple MP4 videos and have successfully removed the audio from them, but I can't add MP3 music to them to make a new video. Any ideas?

Trying hard to find a way of adding MP3 to MP4 video but without any result as the example shows? Don't worry. We will help you out of trouble with the following article which recommends you the top 2 software tools to add MP3 to MP4. Both of them are easy and efficient.

Top 1 Add MP3 to MP4 with Faasoft

In this part, we will talk about a productive and features-loaded program named Faasoft MP3 to MP4 Adder (for Mac, for Windows) to help you add MP3 to MP4 with ease. This software allows you to add all kinds of audio in format MP3, WAV, AAC, FLAC, CAF, VOC and more to video in formats like MP4, AVI, MOV, FLV, WMV, MKV, etc. In addition to the feature of adding audio to video, it is designed with features like crop, trim, add subtitles, rotate, add effects, and adjust volume and more. Moreover, it performs well in video and audio conversion and supports converting more than 150 popular formats. It is really a wonderful choice for editing and converting video and audio.

How to Add MP3 to MP4 with Faasoft

It's pretty easy to add MP3 to MP4 with this great software and given below are the detailed steps. Note that the following steps are based on Windows version of Faasoft MP3 to MP4 Adder. If you are a Mac user, the steps are almost the same.

Step 1 add MP4 file

The first thing to do is to get the program on your PC by clicking "Free Download" button. After install and run the program, simply drag and drop your MP4 file to it.

Step 2 Add MP3 file

Once your target MP4 file appears in the tasklist on the left of the program's main interface, click "Effect" button on the top and in the new Edit window, switch to "Audio" pane in which you can add and edit audio tracks by pressing the "Audio" tab. In the "Audio" pane, click "+" icon to add the target MP3 track from your local disk. Repeat this step to add multiple audio tracks. The original audio tracks and added ones are all displayed in the audio tracks list. Choose a sound track file, and its information will be listed such as audio codec, channels, sample rate, bit rate, duration, etc. Click "-" icon delete the selected audio tracks you added in. Click "OK" to save the settings if everything is done.

Step 3 Start the process of adding MP3 to MP4

In the last step, you just need to hit the "Convert" button on the bottom to activate the application to start adding MP3 to MP4. Get the new MP4 file by clicking "Open Folder" button.

Top 2 Add MP3 to MP4 with Filmora

Filmora (for Mac, for Windows) is quite famous video editing software. It can do more than adding MP3 to MP4. With it, you can successfully add any music to any video and replace the original audio with a new audio track. Moreover, it enables you to trim, rotate, combine photos and videos, fade music, add transitions, PIP, screen recording, 3D Lut, advanced text editing, green screen, pan and zoom, apply effects and many more.

How to Add MP3 to MP4 with Filmora?

Click the "Free Download" button and follow the set-up wizard to install the trial version of this program. It has two versions: Mac version and Windows version and make sure you've got the right version. The steps as below will show you how to add MP3 to MP4 with it.

Step 1 Add MP4 file

Simply drag and drop your target MP4 and MP3 to the program. All files will be loaded soon and then drag and drop them into the respective track on the Timeline.

Note that if you want to remove the original audio track from your MP4 file, just right click the MP4 video clip on Timeline, and from the pop-up menu, select "Audio Detach".

Step 2 Add MP3 to MP4

This is a key step to ensuring successfully adding MP3 to MP4. Play the target MP4 file and then drag your MP3 file that you want to add to MP4 to the right position that you want the audio show. Although this is a critical key step, it is still pretty easy. If you are not satisfied with the final effect, just click Undo/Redo.

This program also allows you to cut the video to remove the unwanted part before and after add audio track to it.

Step 3 Save and share the new MP4 file

Preview the final work in the right window, and if it's ok, click "Create" to export it.