Add Audio to Video for Professional Sound Layering
Layer multiple tracks of music, voiceovers, and sound effects with frame-accurate precision directly in your browser. Our cloud-powered editor ensures perfect synchronization and high-fidelity output for any project.
Over 1 million creators use Flixier every day including brands like:
Create Immersive Soundscapes with Multi-Track Audio
Layer Multiple Sound Elements
Go beyond basic background music by layering diverse acoustic elements on a professional timeline. When you add audio to video, you can mix vocal tracks, ambient textures, and cinematic scores at once.
Access Free Media Libraries
Enhance your production value without navigating external stock sites or worrying about copyright strikes. Our editor provides direct access to a vast library of royalty-free music and high-fidelity sound effects.
Adjust Volume Levels
Ensure your message is always heard with precise volume adjustment and management tools. Automatically lower background music levels during dialogue or voiceover segments to maintain perfect clarity.
Support for Universal Audio Formats
Maintain the highest acoustic standards by importing high-resolution audio files in any mainstream format. Our engine supports MP3, WAV, FLAC, AAC, and OGG, allowing you to work with uncompressed source material for maximum clarity.
How to Add Audio to Video with Flixier
Who this is for
Marketers
Create compelling ad spots and promos by adding high-quality music and persuasive voiceovers. Our integrated stock library will help find the right mood for your brand and build trust with your audience.
See How It WorksPodcasters
Musicians
Social Creators
Unlike any tool
you've used before
I have over 11 years in the broadcast industry, building teleproductive facilities, using high-end editing equipment. And this is better than anything else I've used in my lifetime.
Still have questions?
We got you!
How can I add music to videos online for free?
You can use Flixier to add music to videos online for free by uploading your footage to our browser-based editor and dragging an audio track onto the timeline. Our platform offers a free tier that includes basic editing tools and access to a royalty-free music library.
How do I add voiceover to video?
To add voiceover to video, you can either upload a pre-recorded file (MP3 or WAV) or record your narration directly within the Flixier interface. Once the audio is on the timeline, you can trim, move, and adjust its volume to perfectly match your visual content.
What is the best tool to add audio to video?
Flixier is one of the best tools to add audio to video because it offers a full multi-track timeline in the browser. Unlike simple converters, it allows for professional sound mixing, audio ducking, and frame-accurate synchronization.
What audio formats are supported for import?
Our editor supports all mainstream professional audio formats, including MP3, WAV, AAC, and OGG. This allows you to work with everything from lightweight compressed files for web use to high-fidelity, uncompressed recordings for studio-grade video production and broadcasting.
Can I add multiple audio tracks to one video?
Yes. Flixier features a multi-track timeline where you can layer as many audio elements as needed. This allows you to simultaneously manage background music, multiple voiceover tracks, and various sound effects.
Can I adjust the volume of different audio layers?
Absolutely. You can individually control the gain of each track or clip on the timeline. This is essential when you add audio to video, as it allows you to lower the music during dialogue or boost sound effects for impact, ensuring a balanced and professional listening experience for your audience.
Is it possible to fade audio in and out?
Yes. You can easily apply fade-in and fade-out effects to any audio clip to prevent jarring starts or finishes. This professional touch ensures smooth transitions between different sound elements, making your video's audio track feel polished and intentionally produced.
