How to Convert MP3 to MP4 or Add MP3 to MP4 Video as Background

When you have some favorite music files, how to convert MP3 into an MP4 video, or add it to the MP4 as an audio background music? MP3 is one of the most popular audio formats, which you are not able to upload the file to online streaming sites directly. Of course, you can add the MP3 as the background of a stunning movie in MP4. Just learn more about the best methods to convert MP3 to MP4 from the article now.

Part 1: How to Convert MP3 to MP4 with Ease

If you just need to upload the music to online streaming sites, you can convert MP3 to MP4 with the best quality with Tipard Video Converter Ultimate. It also enables you to edit any video file, such as crop, rotate, watermark, clip, and add filters with ease. Moreover, you can also convert MP3 to iPhone, Android phone or other MP4 compatible devices.

• 1. Convert MP3 to MP4, MP4 HD, 4K MP4 and other MP4 compatible devices.
• 2. Multi-thread to convert multiple MP3 files to MP4 within a batch process.
• 3. Edit the videos with advanced tools, such as crop, rotate, watermark, etc.
• 4. Provide media metadata editor, video compressor and even GIF maker.

How to Convert MP3 to MP4 on Windows/Mac

Part 2: How to Add MP3 to MP4 as Background

When you have some favorite movie, or even a photo, you can also add the MP3 file as a background of the MP4 movie. In order to combine the MP3 music to the movie, AnyMP4 Video Editor is a desired MP3 to MP4 converter to make your videos standout with filters, transitions, themes and more other elements within clicks.

How to Add MP3 to a MP4 Movie as Background

Step 1: When you download and install the MP3 to MP4 converter, you can launch the program and click the Add photo(s) and video(s) here option to add the photos and MP3 files. You can combine them into an MP4 movie according to your requirement.

图launch-video-editor

Step 2: Adjust the order of the images, and add transitions between them. After that, you can click the Add Background Music at the bottom and add the MP3 file that you want to convert to MP4. Optionally, click the Edit Audio to open the audio editor and modify the MP3 file.

图add-background-music

Step 3: Just preview the desired video files, you can click the Export button at the bottom right side to open the export dialog. Go to the Video tab, you can select MP4 and choose a proper resolution to export the images and MP3 audio as MP4 according to your requirement.

Part 3: 2 Best Methods to MP3 to MP4 Converters Online

Of course, you can also take advantage of online MP3 to MP4 converters to transcode the audio files within clicks. Here are 2 recommended methods you can take into consideration.

Top 1: Online Convert

Online Convert is a collection of file converters online. It includes an MP3 to MP4 converter. It has been around for years and more stable than other web apps for converting the audio files.

Pros

• 1. Upload MP3 files from your computer, a URL and even Google Drive.
• 2. Convert multiple MP3 files within a batch process without any charge.
• 3. Provide extensive custom options to tweak the output MP4 files easily.

Cons

1. Take a period of time to convert MP3, even in a stable environment.

2. Lacks audio editing tools to enhance the audio, trim the file and more.

Top 2: Zamzar

Zamzar is another way to convert MP3 to MP4 online for free. It can process up to 5 MP3 files at the same time. It will remain the desired audio quality if the original MP3 files are in good condition. Besides, you can use this online converter to convert M4A to MP4 for free.

Pros

• 1. Upload MP3 files from hard drive or a URL for a batch conversion easily.
• 2. Support extensive multimedia formats to the desired MP4 video files.
• 3. Send output MP4 files to your email address when conversion is done.

Cons

1. Limited to handle 150MB per conversion of MP4 files for free at a time.

2. It does not have any custom options to enhance the videos.

Conclusion

The article shares the best methods to convert MP3 to MP4. Of course, the online MP3 to MP4 converters are convenient methods. But these methods are not stable and usually crash. If you just want to convert file format, Tipard Video Converter Ultimate is the best option. In order to combine an MP3 file and some images to a MP4 video, you should take AnyMP4 Video Editor into consideration.