How to Use AI to Add Background Music to Videos
Generate royalty-free background music that matches your video mood and duration using free AI tools.
Next Best Action
Finish this guide, then continue with another AI Video & Audio tutorial to lock in the workflow.
FAQ Highlights
- Is AI-generated music copyright-free?
- What volume should background music be?
Introduction
Adding background music to a video changes how it feels. A tutorial with upbeat music feels energetic. A vlog with soft piano feels cozy. But finding royalty-free music that fits your exact video length and mood is time-consuming.
AI music generators can create custom background tracks in seconds based on your description.
Step 1: Use Suno AI to Generate Custom Music (Free)
Suno AI is one of the best free tools for generating original music from a text description.
- Go to Suno AI and sign up for a free account.
- Describe the music you want.
- The AI generates two versions of your track.
- Download your favorite one.
Try this Prompt in Suno:
A calm, upbeat lo-fi hip hop track with a warm piano melody. Perfect background music for a 30-second cooking tutorial. No vocals. Medium energy.
Step 2: Use MusicFX by Google (Free, No Sign-Up)
Google's MusicFX is a free web tool that generates music from text prompts without requiring an account.
- Go to the MusicFX demo page.
- Type a description of the music you want.
- Generate and listen to multiple variations.
- Download the track you like.
Best for: Quick experiments and short video clips.
Step 3: Adjust Music Length to Match Your Video
AI-generated music often needs to be trimmed or looped to match your exact video duration.
- Using CapCut (Free): Import your AI music track. Drag the end to trim it. Use "Split" to remove sections. Adjust volume to -10dB so the music does not overpower your voice.
- Using Audacity (Free): Import the track. Select the portion you want. Use Effect > Fade Out at the end for a smooth finish.
FAQ
Is AI-generated music copyright-free?
Most AI music tools grant you ownership of the generated tracks. Always check the terms of service of the specific tool you use. Suno AI gives you full commercial rights on the paid plan.
What volume should background music be?
A good starting point is -15dB to -20dB relative to your voice track. The music should be felt, not heard. Viewers should notice the music is missing if you remove it, but not be distracted by it while present.
Related Tutorials
- /tutorial/how-to-remove-background-noise-from-audio-with-ai
- /tutorial/how-to-use-ai-to-create-youtube-shorts