> ## Documentation Index
> Fetch the complete documentation index at: https://www.tella.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Can I combine two separate recordings into one video?

> How to get picture-in-picture or side-by-side from separately recorded camera and screen videos. Helps when your clips don't play together, you want to play recordings side by side, or you want to combine multiple recordings into one video.

A common question: "I recorded my camera in one video and my screen in another (or uploaded a file) — can I play them at the same time, picture-in-picture or side-by-side?"

**Short answer:** layouts can only overlay tracks that were captured **in the same recording**. Separate clips always play one after another, not on top of each other. But there are good ways to get the result you want.

## How Tella combines camera and screen

When you record screen + camera together in Tella, each clip contains **two tracks** — your camera and your screen — and [layouts](/docs/help/editing/use-layouts) let you arrange them freely: picture-in-picture, side-by-side, TV presenter, and more.

A video you **upload** (or a screen-only / camera-only recording) contains a single track. Adding it to a video creates a new **clip**, and clips play sequentially on the timeline. There's no multi-track timeline for stacking one clip on top of another.

## Ways to get picture-in-picture or side-by-side

1. **Record screen and camera together** (recommended). Use the [web app](/docs/help/recording/record-a-video-using-the-web-app), [Mac app](/docs/help/recording/record-a-video-using-the-mac-app), [Windows app](/docs/help/recording/record-a-video-using-the-windows-app), or [Chrome extension](/docs/help/recording/record-a-video-using-the-chrome-extension) and turn both sources on. You can re-record any clip later — see [Re-record clips](/docs/help/recording/re-record-clips).

2. **Show the other video as Media (B-roll).** If your clip was recorded in Tella with a camera track, you can add a separately recorded video file as [Media](/docs/help/editing/use-media) in a layout. Your camera stays on screen while the media plays — including side-by-side and camera-bubble styles.

3. **Composite externally, then upload.** If both videos come from outside Tella, combine them in a tool that supports multi-track editing (or capture them together with software like OBS), then [upload the finished file](/docs/help/recording/upload-existing-videos) to trim, caption, and share it with Tella.

## What about recording a voiceover separately?

Tella doesn't support importing a standalone audio file or recording a voiceover track over an existing clip. To narrate a screen recording, record your mic at the same time as your screen — or re-record individual clips until the take is right.

<Tip>
  Want to react to or narrate an existing video? Play it on your screen while recording screen + camera in Tella — you'll capture the video, your voice, and your camera in one go.
</Tip>