Methods to Merge Audio and Video: Step-by-Step Guide

The combination of audio and video files is a common task in the editing process. Proper synchronization is necessary for producing powerful videos, as it deepens the narrative and captivates viewers. By effectively combining both audio and video, creators and editors can convey feelings, define the atmosphere, and ensure a fluid viewing experience. However, some users might get challenged on how to achieve the best result since there are various tools and procedures you can use. Thankfully, you can read this post as we give all the best methods you can use to effectively combine your video and audio using your Mac, Windows, browser, iOS, and Android. Thus, check this article and learn the best ways to combine video and audio.

Part 1. Combine Video and Audio Using AVAide Video Converter

Do you want to combine video and audio so you can have an appealing file for a viewing experience? In that case, you can try using AVAide Video Converter. This program is perfect if you want to add a music background to your clips. What makes it more ideal is that you can even edit the audio, such as trimming, adjusting the volume, and delaying. What's more, the software has a simple user interface. With that, you can navigate all the necessary features without facing difficulties. Aside from that, before saving the file, you can even choose your preferred output format. You can convert your video to MP4, MKV, WMV, FLV, MOV, M4V, and more. You can even select your desired quality for up to 4K. So, to start merging your video and audio, use the instructions below.

Step 1Click the buttons below to download and access AVAide Video Converter on your computer.

Step 2From the main interface, click the Add Files button to insert the video and audio files. Then, you can proceed to the next process.

Step 3You can proceed to the bottom interface and click the Merge into one file option.

Step 4Now, after you have combined the audio with the video, you can choose/pick your preferred format from the Output Format section. Finally, tap the Convert All option to start saving your file.

Part 2. Combine Video and Audio Using FFmpeg

Another tool that can help you combine video and audio files is FFmpeg. It is an excellent command tool that is capable of giving the result you need. What makes it an amazing tool is that it is not only capable of combining files. It can even help you enhance your video. You can crop your file, trim, adjust the video speech, aspect ratio, and more. The only drawback here is that the tool is not simple to use. You must have enough knowledge about the codes since it is a command-based tool. But still, to combine video and audio with FFmpeg, see the steps below.

Step 1Download and install FFmpeg on your computer. After setting it up, you can now launch the CMD.

Step 2To start combining the files, insert the code ffmpeg -i input_video.mp4 -i input_audio.mp3 output_video.mp4.

Step 3Press the Enter key to start saving the combined files. Once one, you can now open the file and play it on your media player.

Part 3. Combine Video and Audio Using VLC

VLC Media Player is not just an excellent media player for playing audio and video. You can also rely on this software for merging both audio and video files. The best part here is that it has a simple UI, allowing you to achieve the result you want in just a few seconds. You can use the steps below and learn how to combine audio and video.

Step 1After downloading the VLC media Player, install and launch it to start the process.

Step 2From the interface, click the Media > Open Multiple Files option. Then, another interface will appear on your screen.

Step 3Click the Add option to insert the audio and video files you want to combine. After that, click the Play option to start playing them. You can also hit the Convert button to save them on your computer.

Step 4To save the combined file, click the Profile section and choose your preferred output format. Then, tick Start to begin the saving process.

Part 4. Combine Video and Audio Online

Want to combine video and audio online? In that case, we suggest using CapCut. This video editor is perfect if you want to edit your video and insert background music. What we like about this tool is that you can edit your clips in many ways. You can even adjust the video speed, brightness, saturation, insert subtitles, and more. The only disadvantage here is that when using the free version, the tool will insert its watermark. Thus, it is better to use its paid version to remove the capcut watermark on the video. You can check the tutorial below and learn how to combine audio and video on CapCut.

Step 1Access the CapCut editor on your browser. After that, click the New Video and wait for the loading process.

Step 2Then, click/tap the Upload button to upload the video and audio file from your computer. Then, insert them into the Timeline section.

Step 3After combining the audio and video files, start clicking the Export > Download button to save the output on your device.

Part 5. Combine Video and Audio on iOS

When using your iOS device, you can use the ShotCut app to merge your video and audio files effectively. With this app, you can attach some background music to your videos. What makes it more ideal is that the app can also offer more features for enhancing your videos. You can reverse the video, crop, cut, add filters, and more. To begin merging your files, see the steps below.

Step 1Download and install the ShotCut app on your iPhone. After the installation, run it to start the process.

Step 2Then, press the Video option to add the video file from your Photos app. Then, tap the Music function below to add the audio file you want to insert into the video.

Step 3Finally, press the Arrow down button to begin the final process. After that, tap Download to start saving the file on your device.

Part 6. Combine Video and Audio on Android

For Android users, you can rely on VivaVideo. It is among the best apps you can use to merge video and audio instantly. It can even give you the best quality, leading to a better viewing and listening experience. To begin the procedure, you can use the instructions below.

Step 1After you install VivaVideo on your Android, run it and press the New Project button to add the video.

Step 2Then, from the Timeline section, press the Add Music function to start adding your audio.

Step 3Once satisfied, you can now press the Export button to save the final output on Android.

By Ben Carter on Oct 22, 2025