ACE Studio is downloadable AI vocal synthesis software that offers an easy way to implement AI-generated vocals to music producers and creators. Its next-generation singing synthesis engine delivers astonishingly humanlike performances, with full commercial rights from the artists the AI voices have been trained on. Just like a DAW interface, you can add or record MIDI notes within ACE Studio and assign them a specific AI voice. It also has tools to instantly convert recordings to editable MIDI with transcribed lyrics and notes. You can even blend multiple AI voices together using VoiceSeeds to create your own original singing voice!
ACE Studio does unfortunately require a payment to use, but they do offer a 14-day free trial to try it out beforehand.