Haven’t seen dedicated threads for them yet, but back on December 1, 2023, two of AH-Software’s VOCALOIDs, SF-A2 miki and Hiyama Kiyoteru were announced to be coming to Synthesizer V AI, expected for 2024 in celebration of their 15th Anniversary.
Source: https://twitter.com/ahsoft/status/1730572443927167143
Both were originally released as singing voicebanks for VOCALOID2 along with Kaai Yuki on December 4, 2009. miki also received a VOCALOID4 update on June 18, 2015 while Kiyoteru received a VOCALOID4 update on October 29, 2015. Kiyoteru specifically received two voicebanks for his update: Natural and Rock. miki is voiced by Furukawa Miki (古川美季) and Kiyoteru is voiced by Hiyama Kiyoshi (比山貴咏史).
If you’re not sure how they sound like, here’s a few of their official demos.
SF-A2 miki V2
SF-A2 miki V4 Natural
Hiyama Kiyoteru V2
Hiyama Kiyoteru V4 (Neither of his demos specify specific voicebanks, so I couldn’t isolate them)
