Compositing

How to Add a Waveform Over Your Video (Screen Blend Mode)

By Damien Yvert · Published 5 August 2026 · 4 min read · Written with AI assistance

How do you put a waveform over your own video?Export the MP4 — it comes out on a black background — then put it on a layer above your footage in any video editor and set that layer's blend mode to Screen. Black is the neutral element of Screen, so it disappears and only the colored waveform shows.

If your editor has no Screen blend mode, export a WebM with a real alpha channel (Chromium browsers only) or a transparent PNG sequence (works everywhere) instead.

The waveform MP4 exports on solid black by design. That black isn't a limitation — it's what lets you drop the waveform on top of any video and have only the moving shape show through. The trick is one setting: the Screen blend mode.

Two panels: on the left the exported MP4, a cyan waveform on a black background; on the right the same file set to Screen over a colored background, where the black has dropped out and only the waveform shows. — Left: the MP4 as it comes out. Right: the same file set to Screen over a background — the black contributes nothing, so only the waveform survives.

Why the background is black

Compositing modes combine layers using math on pixel values. Screen lightens: a black pixel (value 0) adds nothing and becomes invisible, while bright pixels shine through. Exporting the waveform on black means that when you Screen it over your footage, the background vanishes and only the colored waveform remains.

Step by step (any editor)

Export your waveform from Music Waveform, the free online audio visualizer, as an MP4 (it will be on a black background).
In your video editor, place your background footage or image on the lower track.
Place the waveform MP4 on the track above it.
Select the waveform clip and set its blend mode to Screen.
The black drops out — the waveform now floats over your video.

The setting is called "Screen" in Premiere Pro, After Effects, DaVinci Resolve, Final Cut Pro (as a compositing/blend mode), CapCut and most other editors.

Use bright colors. Because Screen lightens by luminance, dark colors barely show up over footage — a dark blue waveform can nearly disappear. Choose light, saturated colors. The tool even warns you before exporting a color that's too dark. More: choosing colors for waveform videos.

If that color constraint is a problem — you want a dark waveform, or you are compositing over a light background where Screen has nothing to do — you can skip the blend mode entirely and export with a real transparent background instead.

Troubleshooting

The black is still showing: the blend mode isn't applied, or it's set to the wrong clip. Make sure Screen is on the waveform layer, not the background.
The waveform looks faint: your color is too dark — brighten it and re-export.
Edges look slightly gray: that's normal with Screen; a brighter waveform color minimizes it.

Once this clicks, you can put a waveform over anything: a live performance clip, a static gradient, album art, or a looping background. It's the same technique behind most podcast audiograms.

Make your waveform video

Free, no signup, right in your browser. Load a track and export an MP4.

Open the tool →

About this article: it was written with the help of AI (Claude) and published by Music Waveform. We review our posts for accuracy against how the tool actually works, but if you spot something off, email damienyvert.dev@gmail.com.