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How to add audio to MP4 with HTML5 Video Editor

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  By Olga Krovyakova - March, 18 2022

Quite a common situation indeed, when someone finds some interesting video on YouTube but the sound needs to be replaced or added, so there is a need for an app to add music to video. Our software to add audio to video offers a relatively easy-to-use solution but there are a few minor nuances to walk through and steps to take, to add music to a video.

 

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How to add audio to MP4 online in HTML5 Editor

Important to note that video needs to be downloaded first and then you can add sound to video (for instance, MP3 to MP4), it is not possible to open a YouTube link directly so to add audio to video online.

Otherwise, the idea is quite transparent in such a sense that everyone needs to do is to replace existing audio (inbuilt into the original file) with a new one (using an external file), i.e. add background music to video.

Basically, to add soundtrack to video, please follow these steps:

- Download a video from YouTube.

- Upload it into the online editor.

Upload video into the online editor

- Upload the audio you need to append to your video.

Upload the audio you need to append to your video.

- Drag the video into the first layer of the timing scale.

Drag the video into the first layer of the timing scale.

- Drag the audio onto the second layer of the timing scale and place it within the same time interval as the video.

Drag the audio onto the second layer of the timing scale

- Switch off the sound at the layer with video.

Switch off the sound at the layer with video.

- Press “Publish”.

Press “Publish”.

Adding audio to video may be tricky in some cases, that is why we highly recommend you to take a few minutes to go through the rolling FAQ, just to make sure that adding music to video is crystal clear at all times to you.

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Frequently Asked Questions

How to add additional audio to video?

In case there is an existing track with the original file, then the new one is to be also added and mixed into a single track. Our program (HTML5 Editor) is specially designed to add audio to video, so it allows merging video and audio.
Steps to take:
  • Upload the video you need.
  • Then load the audio you need.
  • Drag the video onto the first layer of the timing scale.
  • Drag the audio onto the second layer of the timing scale and place it within the same time interval with the video, then press “Publish”.

 

How to replace the audio track of a file with another?

Replacement of audio track from a video file requires switching off of the sound in the original video, then in the resulting video, you should have video from the original file and the sound from the additional audio file, i.e. replace original MP3 and add audio track to MP4.
Steps to take:
  • Begin with getting a program to add audio to video.
  • Upload the video you need to modify.
  • Upload the audio that will replace the original video’s sound track.
  • Drag the video onto the first layer of the timing scale.
  • Drag the audio onto the second layer of the timing scale and place it within the same timing interval with the video.
  • Switch off the sound at the layer with video.
  • Press “Publish”.

 

How to add your own audio to a video from YouTube?

In case we are talking of opening a file directly from YouTube using a link, it is not possible to add audio to MP4 (needs to be downloaded first). However, in case the needed file has been already downloaded, then things are concerned with a replacement of the originally inbuilt track with a different one (using an external file), i.e. add audio track to MP4. Please look at the instructions in question 2.
Steps to take:
  • Download a video from YouTube.
  • Upload this video into the online editor.
  • Upload needed audio.
  • Drag the video onto the first layer of the timing scale.
  • Drag the audio onto the second layer of the timing scale and place it within the same timing interval as the video.
  • Switch off the sound at the layer with the video.
  • Press “Publish”.

 

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Related topics:

How to add transitions in video editor HTML5
How to merge videos online


 

 About the author

imageOlga Krovyakova is the Technical Support Manager in Solveig Multimedia since 2010.

She is the author of many text and video guidelines of company's products: Video Splitter, HyperCam, WMP Trimmer Plugin, AVI Trimmer+ and TriMP4.

She works with programs every day and therefore knows very well how they work. Сontact Olga via support@solveigmm.com if you have any questions. She will gladly assist you!