Add audio from one video to another

Yes. Simply drag audio into your script where you want it to play, and then fine-tune with the Timeline Editor.

Or, to make a musical intro, simply drag in your music file and drop it at the start of your transcript. You’ll see it below, in your Pinned Track, i.e. the dark gray timeline above the Script Track. It’s meant for music, sound effects, or any additional audio. You can then adjust how long your music plays, add fades, or ducking when you want to transition to speakers.

How can I add voiceover to a video?

Open a new composition or place the cursor in the script where you would like the new recording to go. Next, click the Microphone button at the top of the application window.

To select your input device, click on the gear icon and then choose from the list of available options in the selection dropdown.

If you would not like Descript to automatically transcribe your audio, uncheck the “Automatically transcribe recording” box. But you really shouldn’t do this in most cases, as editing in the script is one of the most useful and powerful reasons to use Descript.

Next, add your speaker label and, if applicable, the input channel of your microphone/input device.

Once you’re ready, click the Record button and your recording should immediately begin.

Or, just create your Overdub voice, and then type your voiceover in Descript. You’ll get a synthesized but ultra-realistic version of your voice providing the narration.

What video format does Descript use?

Descript supports most video files, with the following exceptions:

• ProRes codec
• MXF
• WebM
• MTS
• Apple HDR - Will be converted to SDR though results may vary.

What audio format does Descript use?

Descript supports most audio files, with the exception of .wav files with more than 2 channels (e.g. files recorded with Sound Devices hardware). Mix these down to stereo/mono before importing, or split the channels and use our multitrack import feature OGG.

Can I edit the volume to a background sound?

There are several ways to adjust levels in Descript: You can simply apply auto-leveling to create consistent levels across your project. You can select the clip from the Timeline Editor, and then adjust the volume from the Clip or Track Inspector. You can change the volume of tracks in the script. Or you can add volume automation. Finally, you can boost the levels of an entire file using volume normalization.

The audio or music of video can dramatically affect 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 a crackled and distorted audio file that needs to be replaced, and at this time, you want to add a sound to the video?

To solve this problem, I humbly recommend Wondershare Filmora. With it, you can easily add audio to video, record the voiceover directly and add it to video, or replace the original audio track (stream) with a new audio file.

In case you want to add music to video with some online tools, please leave a comment below so I can test some online solutions and share with you the best online tools to add audio to video free. I recommend Filmora because its requirement on the network isn't so high compared to the online tools. 

Below is a creative way of adding sound effects to video.

Try It Free

For Win 7 or later (64-bit)

Try It Free

For macOS 10.12 or later

• User-friendly interface enables you to edit your videos easily;

• Supports almost any video and audio formats (including WMV,MOV,FLV,MTS,etc);

• Convenient to add audio to video without quality loss;

• Adding audio to video is so easy

• Supported OS: Windows (Windows 10 included) & Mac OS X (above 10.6).

You May also like 15 Free Music Sites for Commercial Use >>

How to Add Audio to Video Easily

Now see the easy steps to add audio to video files or replace the original audio track with a new voiceover or music.

Step 1: Add audio and video files to the program

After downloading and installing Wondershare Filmora, 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 project media library. Filmora also features a free Audio Library, which provides different genres of music and sound effects. 

You can preview it and add the proper audio to your video.

You may also like: 10 Best Free Audio Editor for Windows and Mac

Step 2: Add a new audio file to the video

Drag the audio and video files from the media library or Audio Library and place them on the respective tracks of the timeline, namely, place the audio file to the Audio Track. This way, the audio file(s) will be merged into the video.

Step 3: Record and add your voiceover to video

Instead of adding music to the video, you can also record and add voiceover to the video. It's a fun way to add narration or complementary audio to video. To do so, 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 the User's Album and timeline when completed.

Step 4: Replace audio track of the video

This is similar to adding audio to video. Just an extra step is required: delete the original audio file. 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 the Audio track.

You can click to see more details about How to Replace Audio in Video >>

Step 5: Adjust the audio file and be creative

Various audio editing tools are available: set volume, speed up, slow down, change pitch and add fade in/out effect. Double-click the audio file on the timeline to change the settings and drag the slide bar. 

Hit "Return" to confirm the settings and go back to the main interface.

You can also change your voice by adjusting the pitch or speed of the audio file, check the detailed guide about How to change voice with Filmora Voice Changer

Step 6: Export video with new audio track

Click "Create" and select "Format" when all is ready. From the list, choose any format you want as the output format. If necessary, also change the advanced settings. Finally, click the "Create" button to export a new video file to the specified folder on the computer. 

Besides export video to your computer, you can also create video for devices like the iPhone, iPad, iPod, directly upload video to YouTube, or burn it to DVD for playing on TV. All in one video editor, no extra software required.

Conclusion

Above are the steps about how to add audio to video with Filmora video editor on Windows and Mac. Typically, you can add your voiceover to the video or detach the original audio and replace it with your voiceover or music file. Whichever you choose, you can adjust the audio settings to get a better result.

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