# Speech to Video

> Generate a video driven by a speech track with Wan 2.2. Connect speech audio, a portrait and a prompt, and get a talking video from 30 credits.

Source: https://nodaro.ai/docs/nodes/video/speech-to-video

The **Speech to Video** node generates a video driven by a speech track. It uses the Wan 2.2 speech-to-video model: connect speech audio, and optionally a portrait and a prompt that describes the scene, and the node returns a talking video that follows the speech.

- Found in: Video › Animate & Perform
- Output: video
- API type: `speech-to-video`

## When to use it
- A video presentation driven by a narration.
- Animated content from a podcast or a voiceover.
- A talking character animated from its voice track.

To make an existing portrait or clip speak, with more model choices, use [Lip Sync](https://nodaro.ai/docs/nodes/video/lip-sync).

## Quick start
### Add the node

Press Tab on the canvas and choose **Video › Animate & Perform › Speech to Video**.

### Connect the speech and the portrait

Connect an audio node with clear speech to **Audio**, for example [Text to Speech](https://nodaro.ai/docs/nodes/audio/text-to-speech). Connect a portrait to **Portrait**.

### Describe the scene

Write the **Prompt** in the settings panel, for example "a presenter speaking in a bright studio", and choose the **Resolution**.

### Run it

Click **Run**. The video appears on the node.

Workflow: A portrait, a narration and a lighting picker drive a talking video.

- Upload Image → Speech to Video (portrait)
- Text to Speech → Speech to Video (audio)
- Lighting → Speech to Video (cinematography)

## Inputs
| Input | Accepts | What it does |
| --- | --- | --- |
| **Audio** | Audio nodes | The speech that drives the video. Required. |
| **Portrait** | Image nodes | A reference image of the speaker. Optional. |
| **Prompt** | Text nodes and pickers | The description of the scene. You can also type it in the settings panel. |
| **Cinematography** | Look and camera pickers, such as Lighting, Lens and Camera Motion | Each picker adds its wording to the prompt. |

The output, **Video**, is the URL of the generated video.

## Settings
| Setting | What it does |
| --- | --- |
| **Resolution** | **480p**, **580p** or **720p**. The price of each is shown in the list. |
| **Prompt** | The scene to show while the speech plays. |
| **Negative Prompt** | What to leave out of the video. |
| **Pre & post text** | Text always added before and after the prompt. See [Prompt pre and post text](https://nodaro.ai/docs/concepts/prompt-pre-post-text). |

Click **Show Advanced Settings** for fine control. Leave a field empty to use the model's default.

| Setting | What it does |
| --- | --- |
| **Seed (optional)** | A fixed number that makes a run repeatable. Empty means random. |
| **Num Frames (16-81)** | How many frames to generate. |
| **FPS (8-24)** | Frames per second. |
| **Inference Steps (1-50)** | More steps give more detail but take longer. |
| **Guidance Scale (0-20)** | How closely the video follows the prompt. Higher is more faithful, lower is more varied. |
| **Shift (0-20)** | A model parameter for fine-tuning the result. |

## Credits
The price depends on the resolution: 30 credits at 480p, 50 at 580p and 60 at 720p.

## Tips
- **Use clean speech.** A clear, well-recorded voice gives the best result.
- **Describe the scene.** A prompt next to the audio gives you more control over the picture.
- **Preview cheap.** Use 480p for quick previews and 720p for the final video.
- **Change advanced settings last.** Start with the defaults, then raise **Inference Steps** for more detail if you need it.

## Frequently asked questions

### What does Speech to Video need?

A speech audio track, which is required. A portrait image and a prompt describing the scene give the model more to work with.

### How many credits does Speech to Video cost?

It depends on the resolution. 480p costs 30 credits, 580p costs 50 and 720p costs 60 per run.

### What is the difference between Speech to Video and Lip Sync?

Speech to Video generates a new video that follows the speech, guided by a prompt and an optional portrait. Lip Sync makes an existing portrait or video speak the audio, with a choice of lip-sync models.

### Which settings should I change first?

Start with the defaults and adjust only if needed. More inference steps give more detail but take longer, and a higher guidance scale follows the prompt more closely but with less variety.