4 Free Ways to Add Any Audio Track to Video on Windows/Mac/Online

Videos can convey more information than pure words. People like watching videos for education or entertainment. Thus, more and more people capture videos with cameras and even mobile phones. To more your video more interesting, you can add background music and voiceover into your video. By adding audio to video, your video can be more eye-catching. Then here comes the question, how to add audio to a video for free? If you want to add sound effects to video without watermark or other limits, you can do as the following paragraphs show.

Part 1: How to Add Audio to Video on Windows

Windows Movie Maker has been discontinued since 2017. But if you have installed WMM before, you can still use it as your add audio to video software. Let’s see how to overlay audio and video with Windows Movie Maker.

Step 1. Run Windows Movie Maker. Drag and drop your video into the main interface.

Step 2. Click Edit and then choose Video volume. You can volume down the original audio source if necessary.

Step 3. In the Home interface, choose Add music followed by Add music from PC. Import your audio source.

Step 4. Set audio effects in the Options section, like fade in, fade out and more.

Step 5. Click Save movie in the Home section to merge audio into a video on Windows.

Part 2: How to Merge Audio and Video Together on Mac

iMovie is a popular video editor for Mac and iOS users. You can add any audio clip into video on Mac for free. It is also supported to mute the original audio file and replace it with a new one. Compared with basic video editors, you can add not only local audio files, but also music from iTunes, Sound Effects and GarageBand. Thus, iMovie can be your good choice to add music to video for free as well.

Step 1. Open iMovie. Choose Import Media from the File list. Add a video file into iMovie interface.

Step 2. Drag this video into the iMovie project timeline. Right-click on the video and select Detach Audio to mute video based on your need. You can remove audio from video here.

Step 3. Drag and drop your desired audio file from iMovie My Media to the timeline. The add track will match your video from the start.

Step 4. Trim, volume up/down, forward/backward and apply other audio effects. You can add audio to video free with high audiovisual experience.

Part 3: How to Add Audio to Video Online for Free

If you don’t need additional audio editing tools, you can add audio to video online with Clideo, Onlineconverter, Voice2v, Addaudiotovideo and many other online tools. The following tutorial is how to add audio to video online without watermark with Clideo. You can use other online editors to add music to video free as well.

Step 1. Visit the Clideo Add Music to Video page.

Step 2. Click Choose file to import your video file from local drive, Google Drive, Dropbox or online URL.

Step 3. Choose Add audio. Add your soundtrack after the video is loaded.

Step 4. Adjust audio track volume and video sound volume. Moreover, you can use the audio trimmer and looping as well.

Step 5. Unfold Format on the lower left corner. Set the output video format as MP4 and more.

Step 6. Choose Create to add background music to video online for free.

Part 4: How to Merge Audio and Video with VLC Media Player

VLC can help you add audio to video on iPhone, Android, Windows and Mac. You can control the audio quality with specific parameters too. So VLC can be your add audio to video app to add music to any video file for free.

Step 1. Open VLC. Choose Convert/Save from the Media list. Choose + to import your video. Select Convert from the Convert/Save drop-down list.

Step 2. Click Settings followed by Profile and Edit selected profile. Adjust audio codec, disable and mute audio freely.

Step 3. Return to the main interface. Choose Media followed by Convert/Save.

Step 4. Click + to import your external audio track. Enable Audio and Keep original audio track options.

Step 5. Choose Show more options. Turn on Play another media synchronously and choose Extra media.

Step 6. Choose Select followed by Convert/Save. At last, choose Save and Start to replace and add new audio into video.

Also read: How to Join MOV (QuickTime) Files for Free

Bonus Tips: Free Tool to Convert to MP4 and MP3 Format

In some cases, you may need to convert video and audio format due to the incompatibility limit. But don’t worry about that. You can use Free FLV to MP3 Converter to convert media files for offline playback and further editing with ease.

1. 1. Batch convert video and audio files to 4K/HD MP4, MKV, AVI, VOB, WMV and other formats. (Find more HD video converter here).
2. 2. No internet connection required.
3. 3. No number or file size limit.
4. 4. Add themes, merge video clips and make 3D videos for free.
5. 5. Work with Windows 10/8/7/Vista/XP.
6. 6. No malware or bundleware.

FAQs of Adding Audio to Video

Now you can add audio to video on your computer and mobile phone successfully. All those video editors and converters are free and safe to use. So you can feel free to try those tools to add music and audio into your video.