Audyo

Synthesizer V is an innovative music creation tool leveraging a deep neural network-based synthesis engine to produce remarkably realistic singing voices. It features customizable AI pitch generation, unlimited tracks, no core restrictions, VST3/AU plugin compatibility, ASIO support for Windows, Jack support for Linux, Cross-Lingual Synthesis, AI Retakes, Isolated Aspiration Output, Vocal Modes, Tone Shift parameter, Microtonal Adjustment, MIDI keyboard support, a metronome, and Lua/Javascript scripting. This appears to be a groundbreaking tool. (You will need to translate the page from Japanese to your preferred language)

Uberduck is a community-driven open-source voice AI platform that enables users to quickly develop AI-generated audio applications utilizing their APIs. It offers the ability to produce AI voiceovers with over 5,000 expressive voices and to develop personalized voice clones through their AI-generated rap feature. Additionally, it supplies API documentation and a blog to assist users in getting started. Moreover, they are in the process of creating a platform for interactive voice and chat bots.

Voicemaker is a text-to-speech application that converts text into natural-sounding voices. It offers support for various languages and regions, allowing users to personalize the voice profile, pauses, emphasis, speed, pitch, and volume. Additionally, it includes a feature for sharing audio files across different platforms. Voicemaker also provides an API for developers and supports audiobooks, podcasts, YouTube videos, web and mobile apps, e-learning content, and call centers.