# Video Audio Replace

Replace the audio track in a video file with a new audio file while keeping the original video

> Canonical page: https://elysiatools.com/en/tools/video-audio-replace

- **Category:** Media

- **Keywords:** video, audio, replace, swap, sound, track, music

## Overview

The Video Audio Replace tool allows you to seamlessly swap the audio track of any video file with a new audio file while keeping the original video stream intact. By utilizing the direct video copy option, you can replace the sound without re-encoding the video, ensuring zero quality loss and rapid processing times.

## Inputs

- **Video File** (file): Select the video file to replace audio in
- **Audio File** (file): Select the new audio file
- **Output Format** (select)
- **Audio Volume (%)** (range): Adjust audio volume (0-500%, 100% = original)
- **Copy Video (No Re-encode)** (checkbox): Copy video stream without re-encoding (faster, no quality loss)

## When to use

- When you need to replace noisy background audio or commentary in a video with a clean, studio-recorded voiceover or music track.
- When you want to change the container format of your video while swapping the audio track.
- When you need to adjust the volume level of a new audio track while merging it with an existing video.

## How it works

- Upload your source video file and the new audio file that you want to merge.
- Select your desired output format (MP4, WebM, MKV, AVI, or MOV) and adjust the audio volume percentage if needed.
- Enable the 'Copy Video' option to bypass video re-encoding for faster processing, then run the tool to download your updated video.

## Use cases

- Adding a localized voiceover track to an existing product demonstration video.
- Replacing wind noise or background hum in outdoor footage with a clean music track.
- Muting or boosting the volume of a background soundtrack in a video presentation.

## Frequently asked questions

### Will replacing the audio track reduce the quality of my video?

No. By keeping the 'Copy Video (No Re-encode)' option enabled, the video stream is copied directly without any compression or quality loss.

### What video and audio formats are supported?

The tool accepts standard video and audio files, and allows you to export the final output as MP4, WebM, MKV, AVI, or MOV.

### Can I adjust the volume of the new audio track?

Yes, you can adjust the audio volume from 0% (muted) up to 500% of the original audio file's volume.

### What is the maximum file size allowed for uploads?

The tool supports video and audio files up to 100 MB (104,857,600 bytes) each.

### Does this tool support adding multiple audio tracks to a single video?

No, this tool is designed to replace the existing audio track with a single new audio file.

## Related tools

- [Video Audio Volume](https://elysiatools.com/en/tools/video-audio-volume): Adjust the audio volume in a video file by increasing, decreasing, or normalizing sound levels
- [Video Smart Mux](https://elysiatools.com/en/tools/video-smart-mux): Combine video with external audio using copy mode.
- [Video SRT Softmux](https://elysiatools.com/en/tools/video-srt-softmux): Add selectable SRT subtitles without burning them in.
- [Duplicate Audio Library Finder](https://elysiatools.com/en/tools/audio-duplicate-library-finder): Find exact and near-duplicate audio across uploaded files or a ZIP, including copies saved with different codecs.
- [Video Reverse](https://elysiatools.com/en/tools/video-reverse): Reverse video playback (play backwards) with optional audio reversal
- [Video Speed Changer](https://elysiatools.com/en/tools/video-speed-changer): Change video playback speed (faster or slower) while maintaining audio pitch
- [Extract Center Channel](https://elysiatools.com/en/tools/audio-center-channel-extract): Extract the center channel from a surround audio file or video audio track
- [Audio Spectrogram Generator](https://elysiatools.com/en/tools/audio-spectrogram-generator): Generate a spectrogram image from an audio file or a video audio track

## Samples

- [Copyright-Free FLAC Audio Samples](https://elysiatools.com/en/samples/flac-samples): Lossless FLAC audio samples for testing and development, mirrored from MP3 set with nature sounds and meditation music
- [Copyright-Free MP3 Audio Samples](https://elysiatools.com/en/samples/mp3-samples): Collection of royalty-free audio samples for testing and development purposes including nature sounds, meditation music, and ambient audio
- [Copyright-Free WAV Audio Samples](https://elysiatools.com/en/samples/wav-samples): Uncompressed PCM WAV audio samples for testing and development, mirrored from MP3 set with nature sounds and meditation music
- [WebRTC Real-Time Communication Samples](https://elysiatools.com/en/samples/webrtc-samples): Comprehensive WebRTC samples for peer-to-peer audio/video communication, data channels, screen sharing, and signaling server implementation