ACE Studio

ACE Studio is a desktop AI vocal workstation: you enter MIDI and lyrics, choose from more than 160 AI singing voices, and shape pitch, timing, breath and expression note by note, then export as a finished vocal or into your DAW. It also has 40-plus AI instruments, voice cloning slots and generative tools, and the company co-developed the open-source ACE-Step music model. It's built for producers and songwriters who want editable, controllable vocals rather than one-click songs. Most stock voices are royalty-free with license certificates, though some third-party voices carry extra terms. Reviews praise the vocal quality but complain about billing and credit use, reflected in a weak Trustpilot score.