> For the complete documentation index, see [llms.txt](https://book.rochat.ai/rochat_book_en/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://book.rochat.ai/rochat_book_en/how-to-create-a-character-on-rochat/create-character-method-1-custom-creation/appearance-and-voice.md).
# Appearance and Voice
## **Generate Avatar or Background**
If you wish to generate an image, describe the scene using markdown-style symbols. For example, if you want to create an image of a cat walking in a forest at night with some blurry lights in the background, you could describe it like this:
```
(Cat) in (Night) in the (Forest) with [Blurry Lights]
```
For more information on how to use symbols, please refer to:
## **Upload** Avatar **and Background Images**
* If you choose to upload a avata, it should display a clear, full frontal view. The optimal size is **576x1024**. The uploaded image will be processed to remove the background and become the final character avatar.
* If you choose to upload a background image, for the best quality, please upload an image with dimensions **2048x1024**.
## **Character Voice**
Rochat currently allows you to select a voice from the system's options or clone a voice of your choice.
If you choose to customize the voice, ensure the audio is free of noise to maintain high quality. You can learn more about converting mp3 audio files to wav format through this link: .
***
## **Visibility**
## 
Decide who can see this character:
* **Public**: Anyone can view it.
* **Private**: Only you can view it.
* **Share-only**: Share your character with friends via a link.