# Lip Sync

## Lip Sync Guide

The **Lip Sync** feature enables you to add speech to your videos, automatically syncing the lip movements with the audio you upload. Whether you’re creating a character-driven video or enhancing a video of a person speaking, Lip Sync ensures the dialogue matches the movements perfectly.

<figure><img src="https://3680982064-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FuiK0IF5fmLR21RxDf6I9%2Fuploads%2F8hFp2JMKh9PipDfHwrwo%2Fexported_image%20(27).png?alt=media&#x26;token=7dff4861-f68d-4ed7-87e3-c044a7a23da9" alt=""><figcaption><p>Lip Sync Tab</p></figcaption></figure>

### Key Tips for Lip Sync Success

* **Clear Audio**: Use clear, well-recorded audio files for the best lip-syncing accuracy.
* **Visible Mouth Movements**: Ensure the mouth is visible and expressive to enhance the realism of the lip sync.
* **Experiment**: If the sync seems off, adjust the starting point of the audio or try a different video

***

### 1. Upload Your Video

Click the **Add Video** button to upload the video you want to apply lip sync to.

* You can upload a pre-existing video or one you've generated within Boba.Video.
* The video should contain visible lip movements for best results.

***

### 2. Add Audio

* Click **Add Audio** and upload the **audio file** you want your video to lip-sync with.
* The audio can be any file with spoken dialogue or sound, like a voiceover or recorded speech.
* **Ensure the audio length matches the video** for accurate syncing.

***

### 3. Optional Notes

* In the **Notes about the lip sync (optional)** section, you can add specific instructions if needed.
  * Example: “Sync lips to speech starting at the 5-second mark,” or “Make sure the character’s lips move more dramatically for emphasis.”
  * These notes help guide the syncing process but are optional.

***

### 4. Generate and Monitor

Once your video and audio are uploaded, click the **Generate** button to start the lip sync process.

* **Monitor progress** in the **Generation Feed**, where you’ll see a progress bar and status updates.
* Once complete, hover over the video in the timeline to preview the lip-sync result.

***

### 5. Post-Processing Actions

After generation, you’ll have several options:

* **Add to Library**: Save the lip-synced video to your Asset Library.
* **Download**: Export the video to your device for further use.
* **Delete**: Remove the video from your timeline (with a confirmation prompt).

***

With Lip Sync, you can bring characters and subjects to life with realistic dialogue syncing—just upload your video, add the audio, and let Boba.Video do the rest!
