The original screenshot of the Maghni devs discussing enhancing the demo behind the scenes, the authenticity of which has not been disputed by any party:
In this screenshot, Suzie (demo artist) suggests that they splice in phonemes to improve the demo. Cocoa (Crescendia developer) agrees, while acknowledging that it is unethical. Editing individual phonemes in Melodyne is also discussed.
In her Twitter thread about the screenshot, Suzie says that consonants and a spoken voice line were generated with RVC (RVC is an open source AI voice changer, not associated with Maghni).
Austin Grissom's statement corroborates the use of samples from other engines, and adds that a Synthesizer V SVP file was used for the timing. He makes it clear that audio output from Synthesizer V was not one of the places they spliced from.
Natalia confirms that the demos were heavily processed, and corroborates that RVC was used. She confirms that RVC and 'related processing' were used for selection of consonants, and the spoken word portion.
And finally, Cocoa confirms again that consonants were spliced and RVC was used to create the spoken word section, and that Synthesizer V used as an editor. However, he disputes Synthesizer V being used for phonetic timing.
Suzie contradicts Cocoa and Austin to say that audio output from Synthesizer V
was used to produce audio samples which were then fed into RVC:
