EaseUS Video Editor

Versatile video editing software to turn clips or footage into marvelous videos.

  • Make videos easily via basic and advanced video editing features
  • Add texts, filters, overlays, transitions, and special effects freely
  • Selectively convert a video to MP3, GIF, MP4, AVI, WMV, MKV, MOV...
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Add Sound to Video? How to Add Audio to Video on PC, MAC, and Online

Tracy King updated on Dec 11, 2020 to Video Editing Tips | How-to Articles

There can be many reasons as to why one could look to add sound to a video. While videos do generally come with some form of recorded audio, many people would want to replace it with something else. In other cases, one could be looking to add background music or audio to their videos. There are plenty of tools available for all major platforms that you can use to add any form of sound to your videos quickly, and even add audio to video online without installing software.

How to Add Sound, Audio, Music to a Video in Windows 10/8/7

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If you own a Windows PC, you can use the excellent EaseUS Video Editor for this task. It is a full-fledged video editor; it offers a plethora of editing options that you are not going to find in other apps and tools on this list. The editor easily allows you to add music to video without watermark. You can even remove the existing audio stream from your video and replace it with any other music of your choice. The software comes with its sound library to you can select any audio file from there as well.

How to add sound to video in Windows

Using the EaseUS Video Editor, it is straightforward to add sound to your video. You can also trim the audio length or make it loop so that it lasts for the entire duration of the video.

Step 1. Select an aspect ratio for your project

Depending on whether you want to export the video for your smartphone, social media, TV, or other platforms, select an ideal aspect ratio. You can choose more aspect ratios from file -> New Project.

Step 2. Import the video and audio files

Drag and drop all the media files, including the video and audio file into EaseUS Video Editor. After you are done importing the video file, click the '+' symbol to add the video to the timeline.

Step 3. Adding sound to the video

Add music to video

If the video you are using already has an audio file and you want to remove it, right-click on the video on the timeline and select the 'Audio Detach' option. Proceed to delete this audio if you do not want to mix it with the new sound by selecting it and press the Del button. Alternatively, you can right-click on the audio in the timeline and select the 'Delete' option.

Add the new audio to your timeline by clicking the '+' symbol. If the audio length is shorter than the video, simply create another copy of it and place it right after the first track ends in the timeline to make it loop. You can also add another sound file if you wish to instead of using the same audio file again and again. Using the same method, you can insert audio effects in selected parts of your video. Just make sure to position the audio file as per the video timeline.

Step 4. Exporting the final video

Click the Export button from the menu bar on the top and then select your desired video format - MP4, AVI, MKV, MOV, etc. Make sure to choose output settings before the export. If you want a video in a particular format, you can select it on the export screen.

Export Video

How to Add Sound to a Video in macOS

iMovie is Apple's video editor for macOS. While it does not come pre-installed on Macs, it can be downloaded for free from the App Store. It has an easy to use UI/UX, and it supports a wide variety of video and audio formats. Since iMovie is also a video editor, it offers plenty of options that you can use to edit and customize your videos, replace its sound with audio of your choice or add background music to your videos, and more.

How to add sound to video in macOS

Step 1. Open iMovie on your Mac and proceed to create a new 'movie' project. Now continue to drag and drop the video file into the iMovie timeline. You can alternatively import the video first and then drag it into the timeline below as well.

Step 2. If you want to replace the audio in the video with another sound file, you will first have to remove the original sound from the video. For this, right-click on the video in the iMovie timeline and select the Detach Audio option. You can skip this step if your video does not have any audio.

Add music to video using iMovie

Step 3. Now proceed to drag and drop the audio file that you want to use with the video into the timeline. You need to place the audio file below the video. The audio will start playing from wherever you drop it in the timeline. So, if you want to audio to start playing from the same point as the video, make sure to place the audio file accordingly.

Step 4. If the audio length is longer than the video, you can use the trim function to reduce its length. Similarly, if the video length is longer than the audio, you can paste another copy of the sound in the timeline right after the first one has ended to extend its range.

Step 5. You can adjust the volume of the audio by dragging the line on the waveform up or down. Once you are done with all the changes, go to file -> Share and proceed to select the output destination. iMovie will automatically apply the best export settings according to that. For greater control, you can export the video as a File and then select your desired settings.

How to Add Audio to a Video Online

If you don't want to install any app on your PC, you can use an online tool like Online Converter to add audio to video online. It is a relatively straightforward tool that does not offer any advanced options. You can upload your video and audio file, after which you will only have two options to select from: replace the audio in the video with the one that you have uploaded or keep the original sound intact and use the uploaded audio file along with it. You do not have control over the final video output format as well, and this tool can take a relatively long time to process if your video file is big.

How to add sound to video using Online Converter

Step 1. On your PC, go to Online Converter. Click on the 'Choose file' option under Video File and select the video file whose audio you want to replace. Do note that the service only supports video files of up to 200MB in size.

Step 2. Similarly, select the 'Choose file' option under Audio File and select the audio that you want to use in the video.

Step 3. You can now decide whether you want to replace the default audio in the video with the audio file you have uploaded or keep the original audio intact. If you're going to add a sound to your video as background music, you can reduce its volume. Alternatively, if the replacement audio file has a relatively low volume, you can boost it from the Volume option.

Online Add music to video

Step 4. Click on 'Add' and wait for the files to be uploaded and converted. Depending on how big the file is, the process can take anywhere between 5 to 15 minutes. Once converted, you can download the video file with the replacement audio. The final video is outputted in MP4 format, and its resolution and length will remain the same as the original video.


Quite a few ways are there. You can add sound to your video. The most accessible tool to use is the EaseUS Video Editor since it easily lets you customize the final video as per your liking. You can increase/decrease the music volume, loop the video, trim the audio length, and more. In comparison, the Online Converter is straightforward to use and does not offer such options.

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