Question: Is there a text-to-video converter that offers customization options like voice styles and background music, and doesn't add watermarks to the final video?

Virbo is a good option. It lets you convert text into professional spokesperson videos with more than 460 voices and languages. You can customize backgrounds, music and text, and it has a variety of AI avatars, AI video templates and royalty-free assets. Virbo is good for marketing, e-commerce, training and social media, and protects user privacy and data security.

Another option is DeepBrain AI, which generates high-quality videos from text prompts. It offers photorealistic AI avatars, more than 100 realistic AI voices, and customizable gestures. DeepBrain AI supports multilanguage text-to-speech and has professionally designed templates, so it's good for education, training, commerce and marketing.

If you want to create short-form videos, Latte is worth a look. It offers features like Animated Subtitles, Viral Clips and AI Text to Story, which converts scripts or blog posts into videos with AI voices and background music. Latte supports 35 languages and offers a free trial, so it's a good option for social media content creators.