If you're looking for a different alternative to Voicestars, Respeecher is a good choice. It has a large library of AI voices, including voice cloning, real-time AI voice conversion and one-on-one audio expert support. It's been used in a number of creative projects like movies and TV shows, so it's a good option for artists and producers.
Another good option is Revocalize. The service lets you create your own AI voice or select from a library of licensed voices, with options like hyper-realistic vocals, real-time auto-tune and professional voice modulation. It's geared for a wide range of customers, including sound engineers, producers and artists, and offers a variety of pricing tiers depending on your needs.
Vocalist.ai is also a good alternative. It converts raw vocal recordings into finished tracks that sound like famous singers and rappers. With high-quality conversions, royalty-free results and fast processing, it's a good option for songwriters, producers and DJs who want to use AI to boost their vocal tracks.