Descript's Overdub is a text-to-speech tool that lets you create an ultra-realistic voice clone from one of their stock voices. You can blend the recorded voice with changes in tone and characteristics, and even overlay it on audio and video content. The AI tool's free account allows you to create a vocabulary for unlimited overdubs, while the pro account gives you access to multiple voices that fit your preferred style setting. Descript also provides editing, recording, transcription, publishing, and sharing services, along with AI-powered tools.