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This article is about the Synthesizer V Studio software known as a voice database. If you are looking for the Synthesizer V character then click here.

History[]

2021[]

On March 20, 2021, HirotoP confirmed that ROSA, CUL's younger 15-year-old sister with a pink theme, was in production for a new AI singing and talk synthesizer developed by ZAN-SHIN Co., Ltd.,[1] seeming to suggest that VOCALO Revolution was not producing vocals for the VOCALOID software.

It was mentioned that ROSA's voice actress would be chosen via an audition taking place in April.[2] HirotoP also discussed the time when Eri Kitamura recorded for CUL and that she was directed to make a voice that was completely different to other VOCALOIDs, which resulted in a strong voice. The voice direction for ROSA's actress would be treated the same, though it depended on the results of the audition.[3] He expressed an interest in creating ROSA's singing voice database for Synthesizer V AI or CeVIO AI and a speech voicebank for A.I.VOICE or CeVIO AI, but the final decision would not be announced until April.[4][5] In addition, due to an unexpectedly high interest from western fans, HirotoP was also considering possible English singing and speech voicebanks for ROSA.[6]

On March 26, ROSA's illustrator was selected and would be announced once her final artwork was ready.[7] On March 27, ROSA's singing voice database was confirmed to be developed for Synthesizer V. This was chosen due to the synthesizer's ease of use and ability to use VSQx files.[8] On April 2, a recruitment post for users interested in creating songs and talk segments with ROSA was launched.[9] On April 3, HirotoP mentioned that the company was interested in collaborating with Internet Co., Ltd. in distributing ROSA since they distributed CUL's VOCALOID3 packages in 2011.[10]

ROSA's audition was launched on April 17. The illustration was confirmed to be released soon.[11] Details and scheduling for the audition were noted on ZAN-SHIN Co., Ltd.'s official website for ROSA.[12] A preview of ROSA's face was shown on April 20.[13][14] On April 28, results of the first screening for the audition were revealed to be China Kitahara, Shirayuki, Juudenki, Minori Ninomiya, and Yuka Hiyamizu.[15][16][17] ROSA's lineart for both Synthesizer V and CeVIO AI were revealed on May 1 and the colored sketches (rough illustrations) were released on May 4.[18][19]

On May 8, Shirayuki was confirmed to be the chosen voice actress.[20][21] Recording sessions for ROSA began on May 14.[22] On May 15, Yoshida Iyo was confirmed to be the illustrator and the final artwork was shown.[23] Information about ROSA's crowdfunding campaign in collaboration with SSS LLC. was revealed and was confirmed to run from June 1 to June 30 on GREEN FUNDING. The production project for ROSA's CeVIO AI talk voicebank would begin afterward and the project's page would be published as soon as it was ready. At that time, ZAN-SHIN was considering a system that would allow overseas fans to participate. The release order was confirmed to be the following: Japanese CeVIO AI Talk, Japanese Synthesizer V AI, English CeVIO AI Talk, and English Synthesizer V AI.[24][25]

The start date for the crowdfund campaign was later changed to June 3 and procedures for overseas investors were being worked upon but was confirmed that this may be delayed.[26] The goal was set to 7 million yen.[27] The crowdfund for ROSA's CeVIO AI Talk voicebank began on June 3 with six tiers for Japanese supporters and three tiers for overseas supporters. A sample of Shirayuki voice-acting as ROSA was made available in the campaign to give supporters an idea of what ROSA may sound like prior to creating her voicebank.[28] The CeVIO AI voicebank was fully funded on June 30, with only a few hours before the campaign's end, resulting in being 112% funded.[29] Test recordings of the voicebank began on July 22, with ZAN-SHIN fully focusing on the production of the CeVIO AI Talk voicebank at this point in time.[30]

On November 24, HirotoP created a demo song for Tsuina-chan's AI voice database. In a reply to the demo post, ROSA's official account noted that it may take some time before she would be able to talk to her and Koharu Rikka, then asked if they could sing together next year.[31] When her CeVIO AI Talk Voice was announced to be releasing on December 17, ROSA's Twitter shared transparent versions of her CeVIO and Synthesizer V key artwork. On the Synthesizer V version's post, it was noted that ZAN-SHIN planned to have it created in 2022.[32]

2022[]

On June 3, 2022, ROSA tweeted that she and WhiteCUL would be performing at the 柚子花主催LIVE -Planet Station- STAGE.3 online concert on June 19, however, WhiteCUL's character design would not be shown.[33][34][35] On June 15, the lineup revealed that ROSA and WhiteCUL were expected to perform second, with the both of them singing.[36][37][38] On the day of the concert, it was later clarified that the singing voices for ROSA and WhiteCUL were performed by their voice providers rather than using singing voice synthesizers. HirotoP hoped that the performances would give listeners an idea of what an AI singing voice database would sound like. It is currently unknown if WhiteCUL would be receiving a singing voicebank as, at the time, only ROSA was confirmed to be receiving a Synthesizer V AI voice database.[39] On September 27, in response to a fan's question about the status of ROSA's Synthesizer V AI production, ZAN-SHIN confirmed that it had not started at the time but was still planned to be made.[40]

2023[]

On May 31, 2023, Shirayuki tweeted that she had spent the past couple of days listening to and recording three songs, which started since 14:00 JST. She noted that "it reminded me of the nightmare of recording the talk software". However, it was not specified what the recordings were for.[41]

On October 23, after an apology for the delays, ZAN-SHIN tweeted that the crowdfund for ROSA's Synthesizer V singing library would start in mid-November.[42] The crowdfund was later pushed back to January or February of next year; AH-Software Co. Ltd. was also mentioned to be handling the production of her singing voice database.[43]

On November 21, GUMI Radio announced (and HirotoP quoted) that Internet Co., Ltd. will handle the packaging and distribution of Synthesizer V ROSA in both physical-package and digital-download versions.[44][45]

2024[]

On January 30, 2024 during the 13th official GUMI Radio broadcast, hosted by GUMI, Otomachi Una, Camui Gackpo, and kokone, a sample of ROSA's developmental stage voice database was shown.[46][47]

On February 2, the crowdfund campaign for ROSA's Synthesizer V AI voice database production project was announced to start the next week.[48] Start date and time for the crowdfund were later specified to be February 7 at 21:00 (9:00 PM) in Japan Standard Time, and the platform chosen for it was Ubgoe.[49] For overseas supporters, special courses accepting PayPal payments were created (as Ubgoe only directly supports credit cards issued by Japanese banks); for courses involving physical goods (as well as the physical edition of the voice database), overseas customers were also asked to register with an international mail-forwarding proxy service like Tenso (because Ubgoe only accepts Japanese addresses, even for non-physical courses);[50] a later tweet clarified that the overseas download course did not require entering any valid address, encouraging users to support it as is without using any forwarding company since they "do not acquire addresses".[51] End date was specified to be February 28 at 23:59 (11:59 PM) JST.[52]

When asked by a follower, ROSA's Twitter account was unable to know if she would receive a Lite version of her voice database.[53][54]

The crowdfund ended with the support of 251 backers (including 22 overseas backers) pledging 5,171,950 yen, almost 74% of the original goal of 7 million yen.[55]

On May 7, her boxart was revealed, and the release date was set to June 3.[56] Users noticed an error on the boxart shown for the Starter Pack, which mistakenly said Megpoid instead of ROSA on the box spine; this was fixed in a matter of a few hours. On May 29, ROSA celebrated getting 5000 followers on Twitter by tweeting a cropped teaser of her crowdfund-backer-exclusive alternative artwork drawn by Saki Ohenri.[57][58]

On June 1, HirotoP tweeted that he was busy making the preparations for making and delivering the crowdfund rewards and setting up the release party. There he also showed a photo of ROSA's standalone voice-database DVD case as well as a cropped photo of the top half of ROSA's alternative boxart by Ohenri, which was to be delivered to crowdfund backers who pledged for her Physical Course.[59] On June 2, some of her physical crowdfund supporters started to receive her package with the Ohenri boxart along with their other rewards, while her digital crowdfund supporters started to receive her activation codes early (download links for the voice database on the other hand would not be delivered until the day of release at noon).

Voice Database Information[]

Demonstrations[]

Demonstrations

AI Megpoid Official Demo Favicon-urlTwitter
Go Hard - Short Version; Beta voice database Favicon-nnNicoNico Favicon-ytYouTube
さくら さくら (Sakura Sakura) - Beta voice database Favicon-nnNicoNico Favicon-ytYouTube
蒼い時間 (Aoi Toki) - Beta voice database Favicon-nnNicoNico Favicon-ytYouTube
Go Hard - Short Version Favicon-nnNicoNico Favicon-ytYouTube
猫になりたい!Nyan! (Neko ni Naritai! Nyan!) - ROSA ver. (SOLID 150%) Favicon-ytYouTube
Go Hard - Full Version Favicon-nnNicoNico Favicon-ytYouTube

Voice Databases[]

Product Information
Versions
  Lite Version/FLT Available?: No  Starter Pack Available?: Yes  Web Version Available?: No

Package details as noted:
ROSA is a feminine Japanese voice database based on the singing style of Shirayuki. As expected of an AI voice database, ROSA is capable of singing with a more human-like and realistic voice.

Vocal traits as noted:
With Diffusion Probabilistic Models (DPM), ROSA can sing more realistically through changes in volume and breath, further enriching singing details, making each singing unique, and providing creators with more options. Through this mode, she can use AI Retakes to create multiple "takes" of a sung section to find an ideal vocal without the need for "laborious tuning". This feature is only available in the Synthesizer V Studio Pro Editor.

Phonetic notes as noted:
  • Phoneme format: Romaji
  • Through Cross-lingual Singing Synthesis, ROSA can sing in not only Japanese but also in English, Mandarin Chinese, Cantonese Chinese, and Spanish. This feature is only available in the Synthesizer V Studio Pro Editor.
    • A dedicated English voice database was proposed prior to the addition of the Cross-lingual Singing Synthesis feature. It is currently unknown if ROSA opted to forgo the dedicated separate English library and either was trained with English songs to enhance English Cross-lingual Singing Synthesis or was not trained with English data at all to instead rely entirely on the feature through Japanese samples alone.

Vocal Modes as noted (Synthesizer V Studio Pro Editor only):
  • ROSA comes with five variations:[60]
    • "Cute"
    • "Fun"
    • "Power"
    • "Soft"
    • "Solid"

System requirements as noted:

Software Requirements:

  • Operating System:
    • Windows 11/10 or higher (64-bit only)
    • Mac OS X: 10.13 or higher
    • Linux Ubuntu 20.04 or higher (64-bit only)

Hardware Requirements:

  • CPU:
    • (Windows / Intel Mac / Linux) Intel Core i5 or higher (or equivalent AMD CPUs) recommended
      • For high-quality editing of AI audio: Intel Core series 4th generation i5 (i5-4xxx) or higher is recommended, or AMD Athlon X4 845 or higher, including Ryzen series.
    • (Apple Silicon Mac) Apple M1 or higher
  • RAM: 2GB or higher
  • Disk Space: 1 GB or higher (for installing one voice database)
    • The amount of space required depends on the number of voice databases installed.
  • Display: 1280 x 800 or higher

Other:

  • CD-ROM Drive (physical editions only)
  • Sound card
  • Internet connection is necessary for activation and obtaining updaters.

License agreements as noted:

Voice database sample

References[]

  1. https://x.com/deecloud/status/1373222840133021700
  2. https://x.com/deecloud/status/1374905696106409986
  3. https://x.com/deecloud/status/1374699684439105540
  4. https://x.com/deecloud/status/1374900837932179456
  5. https://x.com/deecloud/status/1374909693982728192
  6. https://x.com/deecloud/status/1374963113078837249
  7. https://x.com/deecloud/status/1375454098141552643
  8. https://x.com/deecloud/status/1375798371840098308
  9. https://x.com/deecloud/status/1377794815870464000
  10. https://x.com/deecloud/status/1378368068359913477
  11. https://x.com/ZAN_SHIN_net/status/1383383478511620099
  12. https://rosa.zan-shin.net/index.php/2021/04/17/__trashed/
  13. https://x.com/ZAN_SHIN_net/status/1384492136096096263
  14. https://x.com/deecloud/status/1385095850049769473
  15. https://x.com/ZAN_SHIN_net/status/1387039663223832576
  16. https://rosa.zan-shin.net/index.php/2021/04/28/%e4%b8%80%e6%ac%a1%e9%81%b8%e8%80%83%e7%b5%90%e6%9e%9c/
  17. https://cdn.discordapp.com/attachments/695380056943493280/911451333784109066/unknown.png?ex=665ddaf3&is=665c8973&hm=fd074ca46253c59677fcfd20824933e096d42757d35421a6d571a196907872c5& - Screenshot as of November 19, 2021
  18. https://x.com/deecloud/status/1388180217789775873
  19. https://x.com/deecloud/status/1387937072892182531
  20. https://rosa.zan-shin.net/index.php/2021/05/08/%e6%9c%80%e7%b5%82%e9%81%b8%e8%80%83%e7%b5%90%e6%9e%9c/
  21. https://cdn.discordapp.com/attachments/695380056943493280/911451674525171782/unknown.png?ex=665ddb45&is=665c89c5&hm=db1c2a67721c8e70b67b24ddb5bd4cab3908bc64805b6bda1d20a735ea653568& - Screenshot as of November 19, 2021
  22. https://x.com/Snow_White__y/status/1393211989174865920
  23. https://x.com/yoshida_iyo/status/1393527709452570629
  24. https://rosa.zan-shin.net/index.php/2021/05/15/%e3%83%ad%e3%82%b5rosa-%e3%82%af%e3%83%a9%e3%82%a6%e3%83%89%e3%83%95%e3%82%a1%e3%83%b3%e3%83%87%e3%82%a3%e3%83%b3%e3%82%b0%e9%96%8b%e5%a7%8b%e3%81%ab%e3%81%a4%e3%81%84%e3%81%a6/
  25. https://cdn.discordapp.com/attachments/695380056943493280/911451933678649364/unknown.png?ex=665ddb82&is=665c8a02&hm=befe08d130efc5b4abddfcca9e09a07f6ee0eb3de58a2c9d472f41fc4de73b98& - Screenshot as of November 19, 2021
  26. https://x.com/deecloud/status/1397759025383575553
  27. https://x.com/deecloud/status/1397751497115377664
  28. https://x.com/ZAN_SHIN_net/status/1400398355247755269
  29. https://x.com/ZAN_SHIN_net/status/1410259760989999116
  30. https://x.com/Snow_White__y/status/1418195685111853065
  31. https://x.com/ROSA_ROSA_15/status/1463425865635614722
  32. https://x.com/ROSA_ROSA_15/status/1466059768557015042
  33. https://x.com/ROSA_ROSA_15/status/1532679142629834752
  34. https://x.com/deecloud/status/1533618023600635904
  35. https://x.com/CUL1224/status/1534119892915752961
  36. https://x.com/ROSA_ROSA_15/status/1537268768623464448
  37. https://x.com/CUL1224/status/1538169545227370496
  38. https://x.com/deecloud/status/1538461589103603713
  39. https://x.com/deecloud/status/1538484753372151810
  40. https://x.com/ZAN_SHIN_net/status/1574636255840964608
  41. https://x.com/Snow_White__y/status/1663575179677814785
  42. https://x.com/ZAN_SHIN_net/status/1716418501840404950
  43. https://x.com/ZAN_SHIN_net/status/1722227715292672141
  44. https://x.com/ROSA_ROSA_15/status/1726932287907082374
  45. https://x.com/deecloud/status/1726932870739243130
  46. https://x.com/GUMIfromMegpoid/status/1752269153615204402
  47. https://x.com/GUMIfromMegpoid/status/1752338059650339107
  48. https://x.com/ROSA_ROSA_15/status/1753198217905447083
  49. https://x.com/ROSA_ROSA_15/status/1754750899157889099
  50. https://x.com/ROSA_ROSA_15/status/1754753214858326525
  51. https://x.com/ROSA_ROSA_15/status/1755865417309126805
  52. https://x.com/ROSA_ROSA_15/status/1755104741556940979
  53. https://x.com/Anon18460844542/status/1755235103259672846
  54. https://x.com/ROSA_ROSA_15/status/1755239440862376266
  55. https://x.com/ROSA_ROSA_15/status/1762856226600452248
  56. https://x.com/INTERNETjp/status/1787743120555430105
  57. https://x.com/ROSA_ROSA_15/status/1795485453522796892
  58. https://x.com/ROSA_ROSA_15/status/1795489632232390728
  59. https://x.com/deecloud/status/1796700615726534983
  60. https://x.com/ROSA_ROSA_15/status/1758368617488637976

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