How to Replace Part of Audio and Keep Video

Basically, when you shoot a video, sometimes the sound doesn’t match the quality or vibe you want. Maybe there’s some random background noise, an awkward comment, or just a part that needs a fresh sound. Fixing just the audio track without messing with the video can seem tricky. But don’t worry — with the right tool, you can replace parts of the audio in your video quickly and easily, no matter what kind of video format you’re working with.

Clideo’s online Video Editor lets you edit directly in your browser. There is no need for extra software or downloads. This guide explains the process step by step, and shows how Clideo’s Video Editor provides a complete set of features for audio replacement.

Why replace audio in video?

To swap audio in a video means replacing the original audio with new audio. You can replace the whole audio track or just a segment without redoing the entire project. This operation can be useful in many situations, such as:

• Removing background noise or distracting sounds in specific segments
• Replacing poorly recorded dialogue or voiceovers without altering the video
• Adding sound effects or ambient audio to enhance certain scenes
• Censoring offensive language or inappropriate content selectively
• Inserting translated or dubbed audio for a particular dialogue
• Updating outdated audio content without changing footage

Thus, changing parts of your audio can help your project look more professional. The main challenge is to do this without affecting video quality or causing sync problems.

How to replace sections of audio in a video file

Sometimes you only need to replace a section of the track. For example, if a loud noise interrupts a key moment in your vlog or you need to bleep a spoiler. So you might need a tool that can cut out the unwanted part only and insert a new track or some sound instead.

Clideo's online Video Editor is a convenient tool that makes this task easy. It works directly in your browser, so you can edit your video online without any software installation or registrations (if you're okay with a small watermark and your file is up to 500 MB). You can upload recordings in popular formats such as MP4, MOV, AVI, WMV, and more, and extract, trim, and replace the parts you want while leaving the rest of the video unchanged.

The tool also allows you to set specific start and end times, giving you precise control over when the new audio plays in your video. If you want to add sound effects or music, you can use the built-in "Music" library, which includes audio files and vatopus sound effects for any mood.

Here's how to replace original audio with something new in Clideo's online Video Editor:

Upload files

Open Clideo's Online Video Editor and click "Get started".

Click the "+" button to add your video and new audio files from your device or cloud storage. The tool supports various video files, such as MP4, AVI, MKV, MOV, WMV, MP3, WAV, and more.

If you need sound effects but don't have any, check out Clideo's stock audio library by clicking "Audio" in the left menu. If you want to use your own custom sounds, record them right in the same tool.

Replace old audio in video

First, extract the audio to keep the video intact. To do that, click your video in the timeline, go to the "Audio" tab in settings, and select "Extract audio". You'll see the green audio track appear in the timeline.

To cut out a specific segment that you want to replace, move the playhead to its start and click "Split." Do the same at the endpoint. Select this segment and press "Delete" to remove it.

To add new audio instead, drag your new file or sound effect into the gap. If the new sound is longer, it will be trimmed to fit the gap automatically. If it is shorter than the segment, you can copy and paste the segment several times to fill the space. Remember to adjust audio levels with the volume slider to match the loudness of the original track.

You can also set the start time and duration for the new audio using the "Timing" section, which will give you precise control over when the tracks in the video end.

By the way, you can also use audio from another video, just drag and drop the video onto the timeline, extract the audio track, and trim out the segment you need. No need to convert video to sound or look for other tools; you can choose from a range of editing options for your entire sequence in one place.

The tools also let you adjust video settings like aspect ratio, color, transparency, and speed if needed. Additionally, to add captions, use the "Text" tab. To create an AI voiceover, use the "TTS" tab. Stickers and GIFs are available in the "Elements" tab.

When you're done, click "Export" and pick your preferred export option. The default output format will be MP4 video.

Download the video

Preview your project to check the final result. If it looks good, click "Download" to save it to your device or cloud storage. If you decide to make any changes in the footage, you can click "Edit" to go back.

Tips for replacing audio in videos

Replacing audio in your videos may seem simple, but there are some practical tips to help you get the best results when changing audio tracks or segments.

• Always keep a backup of your original video before editing. With Clideo, you can stay cool-headed: it offers non-destructive video editing, so all you assets stay intact in the "Media" tab, and you can always undo recent actions or start from scratch.
• Use high-quality audio files (WAV or MP3) for the best sound.
• Use the time settings to control exactly when your new audio starts and ends.
• Adjust the volume of the new audio track to blend naturally with the rest of the video.
• Preview your edits several times before exporting to catch any mistakes.