You're asking how to control audio (on/off) for a background video in Webflow. Webflow’s native Background Video element does not support sound at all — it’s always muted for browser requirements. Here's how to work around it.
1. Understand Native Limitations
- Webflow’s Background Video automatically plays muted to meet browser autoplay policies.
- Native controls like mute/unmute, volume control, or even playing audio are not available.
- You cannot unmute a Background Video inside of Webflow.
2. Best Workaround: Separate Audio and Video Elements
- Upload the video as a regular video element (not Background Video) if you want sound, but be aware this adds a visible player unless customized.
- Better method:
- Use a Background Video (muted/visual only).
- Upload audio separately as an HTML5 audio element or an embedded audio widget.
- Control the audio element independently (play/pause/mute/unmute) using custom interactions.
3. How to Set it Up
- Add a Background Video element for visuals.
- Add an Embed element (+ key icon) and inside, add a minimal audio player:
- Use an
<audio>
tag with properties like autoplay
, loop
, controls
, and muted
depending on your preference. - Example attributes inline in discussion (no code blocks):
<audio src="your-audio-file.mp3" autoplay loop></audio>
- Style the audio player to be hidden if you don't want native browser controls.
- Add a custom Play/Pause button and trigger audio actions through Webflow interactions or tiny bits of JavaScript if needed.
4. Sync Considerations
- Perfect sync between background video and separate audio is difficult.
- Small desyncs may happen over time because:
- Background Video auto-optimizes for playback and isn’t guaranteed to stay frame-perfect.
- Audio and video are managed separately by the browser.
- If perfect sync is absolutely critical (like in a music video), you need to embed a custom HTML5
<video>
with audio instead of using Webflow elements.
5. Alternative: Full Custom Video Embed
If syncing must be tight:
- Hide Webflow’s Background Video.
- Use an Embed element for a full
<video>
tag with controls
, autoplay
, loop
, and muted="false"
(though user interaction will usually be required to play audio). - Styling would be needed to make the custom video behave like a background (fixed size, full screen, z-index behind content).
Summary
Webflow’s native Background Video cannot have sound. The best solution is to separate the audio using a hidden HTML5 <audio>
element and control it manually. If perfect sync is needed, replace the Background Video with a custom <video>
embed that plays both audio and video together.