Contents

Part 1. WAV vs. MP4: What's the Difference?
Part 2. How to Convert WAV to MP4 Online
Part 3. How to Convert WAV to MP4 on Windows and Mac
Part 4. FAQs About Converting WAV to MP4

How to Convert WAV to MP4 on Windows, Mac, Online

November 04, 2026Andrew Miller

WAV is an audio file format that provides excellent quality lossless sound, while MP4 is a multimedia file container usually used for videos. If you have to upload an audio file to a video-sharing website or create a video from the music with a cover photo, converting WAV to MP4 will suit you.

It should be mentioned that WAV contains an audio track only. In order to create a usual MP4 video, you will need to put an image, background, or video in it. Here we provide you with some options for converting WAV to MP4.

Part 1. WAV vs. MP4: What's the Difference?
Part 2. How to Convert WAV to MP4 Online
Part 3. How to Convert WAV to MP4 on Windows and Mac
Part 4. FAQs About Converting WAV to MP4

Part 1. WAV vs. MP4: What's the Difference?

Feature	WAV	MP4
File type	Audio format	Multimedia container
Main use	High-quality audio storage	Video and audio playback
Content	Usually audio only	Video, audio, subtitles, and metadata
File size	Often large	Depends on the codecs and settings
Common extensions	.wav	.mp4

Part 2. How to Convert WAV to MP4 Online

Online conversion programs make it easy for the user since all that is required is to use them from a web browser without downloading any program onto their computer.

Method 1. Convert WAV to MP4 with Media.io

Media.io is an online website for converting media into different formats of audio, images, and videos. Make sure that the particular tool being used has the capability to convert WAV file format into MP4. It supports batch conversion of videos, audio files, and images to 45+ formats, including WAV and MP4.

Step 1.

Enter the Media.io online converter website.

Step 2.

Then, upload your WAV file and select MP4 as the output format.

Step 3.

Finally, adjust the available output settings. Click Convert and download the resulting file.

However, Media.io requires you to register and log in with an account, which is not as easy as other online converters, like Aiseesoft Free Video Converter Online.

Method 2. Convert WAV to MP4 with Restream

Restream provides an online WAV-to-MP4 converter designed for browser-based conversion. Unlike Media.io Converter, Restream needn’t log in. The method is suitable for users who want a straightforward online workflow.

Step 1.

First, visit the Restream WAV to MP4 Converter.

Step 2.

Click Choose File and upload your WAV audio.

Step 3.

Follow the on-screen instructions to start the conversion. Finally, download the MP4 file when processing is complete.

Part 3. How to Convert WAV to MP4 on Windows and Mac

Desktop programs can come in handy if you require greater flexibility in output settings or deal with longer files. Some good free options are VLC and Shotcut, and Aiseesoft Video Converter Ultimate is an alternative that provides a simpler conversion process.

Method 3. Convert WAV to MP4 with VLC Media Player

VLC is an open-source media player that also comes with a built-in media conversion facility. But you may need a profile and video for the media conversion from audio to MP4 in some versions of VLC.

Step 1.

Download and open VLC Media Player. Select Media > Convert/Save.

Step 2.

Then, click Add to import your WAV file. And click Convert/Save to open the conversion settings.

Step 3.

Next, choose a compatible MP4 profile, if available, and set the destination filename to end in .mp4. Click Start to begin conversion.

VLC is a reliable tool for basic media conversion at no cost. However, the default conversion screen in VLC is not meant for video generation using cover art. If there is no picture in the output or if the conversion is unsuccessful, you should use a video editing tool.

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Method 4. Convert WAV to MP4 with Aiseesoft Video Converter Ultimate

If you need to convert WAV files to MP4 for better compatibility, easier sharing, or further editing, Aiseesoft Video Converter Ultimate is worth considering. It supports a wide range of audio and video formats, including WAV, OGV, OGG, and MP4, as well as over 1,000 other formats. In addition to fast, high-quality conversion, it offers built-in editing and enhancement tools to help you refine your videos. Therefore, it can be used as a one-stop video processing tool.

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Step 1.

Download, install and launch Aiseesoft Video Converter Ultimate. Then, click Add Files to import your WAV audio.

Step 2.

Then, open the output format menu and select MP4 video output as your output format. If you want a video with a cover image, use a compatible video-editing or MV feature to combine the audio with an image.

Step 3.

Next, choose the output folder and configure the available settings. Click Convert All or the corresponding export button.

Aiseesoft is worth considering if you frequently convert media files. Keep in mind that a basic audio conversion to MP3 or another audio format is different from creating an MP4 video. Make sure your workflow generates a video track before exporting.

Method 5. Turn WAV into MP4 with Shotcut

Shotcut is a free, open-source video editor for Windows, Mac, and Linux. It lets you combine WAV audio with images or video clips to create MP4 videos, making it ideal for music videos, podcast videos, and audio slideshows. You can also add text, transitions, and other visual effects before exporting your project.

Step 1.

First, open Shotcut, click Open File, and import your WAV file. You also need to import a JPG or PNG image for your video background.

Step 2.

Second, create a timeline if one is not already visible. Add a video track and an audio track, then place the image on the video track and the WAV file on the audio track.

Step 3.

Then, extend the image time as long as the audio. Preview the project to make sure the image and the audio play correctly.

Step 4.

Finally, click Export, choose the default MP4 export settings, and click Export File (the label may vary by version). Choose a destination and filename, then save the video.

Part 4. FAQs About Converting WAV to MP4

Can I convert WAV to MP4 for free?

Yes. VLC, Shotcut, and some online converters offer free options. However, online tools may impose file-size limits, usage restrictions, or uploading files carries the risk of leaking personal privacy.

Can I convert WAV to MP4 without an image?

Sometimes, the converter creates an MP4 file that is accompanied by a solid color background or other such default visual. Normally, there should be a video track for any standard MP4 video, and hence this is one sure way.

Will converting WAV to MP4 reduce audio quality?

This will depend on how the conversion is done. WAV files are frequently not compressed, whereas MP4 files use AAC audio. There might be some deterioration in the process of encoding WAV to AAC. Selecting a good bitrate for the audio helps maintain the quality, but this will not make the encoding lossless.

Why is my converted MP4 file not playing?

There may be an issue with the format being incompatible, a partial conversion, or the file format used is not correct. It would help to export using a widely accepted H.264 video and AAC audio format.

Conclusion

The process of converting WAV to MP4 becomes easy once you know which method works best for you. You have the convenience of online converters, VLC offers basic file conversion, while Aiseesoft allows for desktop-based file conversion. If you wish to add a visual element to your video, like a cover, then you have the option of using Shotcut.

While exporting, make sure that the visual content included in your MP4 is the one you wanted and that the audio works fine. Make sure that you select the right export format and audio settings for a shareable video.