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How to Add Audio to Video or Replace Audio in a Video File

The audio or music of video can have a dramatic effect on our perception of a video – no matter whether it’s a home movie, a commercial, or a video presentation. But what if all you have is silent footage or with just crackled and distorted audio file that needs to be replaced?

To solve this problem, I humbly recommend Wondershare Video Editor. With it, you can easily add audio to video, or replace the original audio track (stream) with a new audio file or voiceover. Now see the easy steps to add audio to video files or replace the orignal audio track.

Software You Need: Wondershare Video Editor

wondershare video editor
  • User-friendly interface enables you to easily edit your videos;
  • Supports almost any video and audio formats (including WMV,MOV,FLV,MTS,etc);
  • Convenient to add audio to video without quality loss;
  • Export the edited video in different ways;
  • Supported OS: Windows (Windows 8 included) & Mac OS X (above 10.6).

1.Add audio and video files to the program

After downloaded and installed Wondershare Video Editor, you can either click Import on the primary windows and select audio and video files from your computer, or simply drag and drop audio and video files to the User's Album.

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add audio file to video

2. Add audio file to video

Drag the audio and video files from User's Album and place them on the respective tracks of the Timeline. This way, the audio file(s) will be merged into the video. Note that the original audio track will be kept.

add audio to video

3. Add voiceover to video

Instead of adding music to video, you can also add voiceover to video. It's a fun way to add narration or complementary audio to video. To do so, just click the Record button on the toolbar above Timeline, the Record dialog will appear. Click the red Record button and you can start to talk in 3 seconds. The voiceover will be added to User's Album as well as Timeline when completed.

add voiceover to video

4. Replace audio track of video

This is similar to add audio to video. Just an extra step is required: delete the video. To do so, right click the video you want to replace audio in it, and select Audio Detach. After that, delete the audio file from the track. As described above, you can then drag and drop a new audio file from User's Album to Audio track.

replace the audio of video files

5. Adjust the audio file (optional)

A variety of audio editing tools are available: set volume, speed up, slow down, change pitch and add fade in/out effect. To change the settings, just double click the audio file on the timeline and drag the slide bar. Hit "Return" to confirm the settings and go back to the main interface.

add audio to video

6. Export video with new audio track

When all is ready, click "Create" and select "Format". From the list, choose any format you want as the output format. If necessary, also change the advanced settings. Finally, click "Create" button to export a new video file to the specified folder on computer. Besides export video your computer, you can also create video for devices like the iPhone, iPad, iPod, directly upload video to YouTube, or burn to DVD for playing on TV. All in one video editor, no extra software required.

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add audio to video file

Video Tutorial: How to Add or Replace Audio of Your Video

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people have downloaded it

Product-related questions? Speak directly to our Support Team >>

Sam
But I tried and it works well. Just right click the video; choose Audio Detach to separate and delete the original audio file first. Then you can add a new audio file.
Rowie
This is very nice, and the util seems perfect. But this is not replacing the audio in the video. The video is encoded again WITH the new audio. But every time a video is encoded it loses quality. I am looking for a way to actually dig in the file itself and replace it there. But anyway nice post!
Tina
You can mute the old vocie by right clicking and choosing 'mute". Then place a new audio track on the timelime.
Praveen
I want to add music to video after creating video old voice of video is present. I want to add original music to video.plz tell me
Liza_Brown
Hi, Chris, you can double click the audio and then edit it in the pop up window. It also includes the "Fade in and out" effect. Here is a detailed guide: How to Add Audio Fade in Effect.
chris
i would like to edit the auto as well "fade in and out" is there a way to do this?
Prashant
This is the software I was searching for a long time ! Thanks Ms. Liza you are so kind and helpful.
Liza_Brown
Hi, Sawyer, can you use your boom mic to record a single audio file like MP3? If yes, copy the MP3 file to your computer first and then load to this program to add it as the background music for your camera video. Hope it works for you.
Sawyer
I make a lot of movies. Is there a way for me to use a boom mic, and then merge the sound file from that to the video file from my camera? If so that would be very helpful.
Liza_Brown
Hi, Ailu, our program doesn't support add two or more audio track at the same time to a video file. But you can try below method if you need it anyway. 1) Import your video and an audio track to combine them together, then click "Create" to save it. 2) Load your created file to this program again, and then drag another audio track to the Music Timeline. Sync the video and audio to make it perfect. Note that you can customize both audio tracks like changing pitch, volume, etc. to achieve the best effect.
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