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Kotonoha Akane/Aoi

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Kotonoha Akane & Kotonoha Aoi
Developer(s)AI, Inc.
AH-Software Co. Ltd.
Initial releaseApril 25, 2014
Stable release
AI VOICE 2: Kotonoha Akane & Aoi / December 22, 2023
Operating systemsee #Development
Available inJapanese, English, Mandarin
TypeVocal Synthesizer Application
Websitehttps://aivoice.jp/character/kotonoha/

Kotonoha Akane & Aoi (Japanese: 琴葉茜・葵) are a pair of Japanese VOICEROID+ voicebanks released 25 April 2014. They were produced by AI, Inc. using AITalk [ja] and distributed by AH-Software, with voiced by Yui Sakakibara.[1]

Development

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Year Software Voicebanks Engine Application Operating system
Text-to-speech
2014 Kotonoha Akane & Aoi (VOICEROID+) AITalk 3 Windows
2017 Kotonoha Akane & Aoi (VOICEROID2)
  • Kotonoha Akane
  • Kotonoha Aoi
AITalk 4 Voiceroid 2
2020 Kotonoha Akane & Aoi (A.I.VOICE)
  • Kotonoha Akane
  • Kotonoha Aoi
  • Kotonoha Akane Tsubomi
  • Kotonoha Aoi Tsubomi
AITalk 5 A.I.Voice Editor
2021 A.I.Voice Kotonoha Akane & Aoi English
  • Kotonoha Akane (English)
  • Kotonoha Aoi (English)
Un­known
2022 Kotonoha Talk Chinese
  • Kotonoha Akane(Chinese)
  • Kotonoha Aoi(Chinese)
Un­known
2023 Kotonoha Akane & Aoi (A.I.VOICE2)
  • Kotonoha Akane (NV)
  • Kotonoha Akane Tsubomi (NV)
  • Kotonoha Aoi (NV)
  • Kotonoha Aoi Tsubomi (NV)
AITalk 6 A.I.Voice 2 Editor
Singing voice synthesis
2020 Kotonoha Akane & Aoi (Synthesizer V Studio)
  • Kotonoha Akane & Aoi
Synthesizer V Standard Synthesizer V Studio
2022 Kotonoha Akane & Aoi Song Library (NEUTRINO)
  • Kotonoha Akane
  • Kotonoha Aoi
Un­known Neutrino
Voice conversion
2021 Kotonoha Akane & Aoi Voice Model for Voidol
  • Kotonoha Akane
  • Kotonoha Aoi
R.C.voice Voidol
2022 Kotonoha Akane & Aoi (Seiren Voice)
  • Kotonoha Akane & Aoi
Un­known Seiren Voice Windows

Text-to-speech

[edit]

Kotonoha Akane & Kotonoha Aoi's VOICEROID+ voicebank was distributed by AH-Software and released on 25 April 2014.[1] The VOICEROID2 voicebank released on 9 June 2017, added a Voice Style feature.[2]

On 22 February 2020, a text-to-speech synthesizer software A.I.VOICE [ja] released the product "A.I.Voice Kotonoha Akane & Aoi", added two voicebanks with younger voices, Kotonoha Akane Tsubomi and Kotonoha Aoi Tsubomi.[3] The English version released on 10 December 2021[4] and Chinese on 22, September, 2022.[5]

Singing voice synthesis

[edit]

Kotonoha Akane & Aoi's shared singing library for Synthesizer V [ja] Studio produced by AH-Software released on June 26, 2020. The recommended rhythm is between 70 and 180 bpm, and the recommended range is between E3 and D5. The included scales are G ♯ 3, C ♯ 4, F ♯ 4, and C5 (falsetto).[6]

The NEUTRINO [ja]'s Kotonoha Akane & Aoi singing voice library have been available for free to users who purchase "A.I.Voice Kotonoha Akane & Aoi" since 25 April 2022. The recommended range for Kotonoha Akane is between mid1G and hiC (G3 to C5), with a recommended rhythm of 120 to 180 bpm, and the recommended genres are rock, pop music, etc.; The recommended range for Kotonoha Aoi is between mid1G and hiC (G3 to C5), with a recommended rhythm of 80 to 140 bpm, and the recommended genres are pop, folk music, etc.[7]

Voice conversion

[edit]

The voice model library of Kotonoha Akane & Aoi for an AI voice conversion application Voidol was produced by Crimson and released on 12 October 2021.[8] Released on 17 May 2022, the voicebank of Kotonoha Akane & Aoi for a voice conversion software Seiren Voice was produced by Dwango.[9]

Character

[edit]

Kotonoha Akane & Aoi's character art were designed by Japanese illustrator Yoshida Yoshitsugi. They are a pair of twin sisters.[1]

Akane is used to speaking in the Kansai dialect for she lived in Kansai region for a long time, and Aoi has standard intonation.[1] Akane is "outgoing and cheerful" while Aoi is "calm and reliable".[10]

References

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  1. ^ a b c d 「それええやん」関西弁で話す「VOICEROID+ 琴葉 茜・葵」. ASCII (in Japanese). 2014-03-27. Archived from the original on 2019-05-07. Retrieved 2020-12-26.
  2. ^ 読み上げソフトのベストセラー※がついにバージョンアップ!『VOICEROID2 結月ゆかり』『VOICEROID2 琴葉 茜・葵』2017年6月9日発売. 株式会社AHS (Press release) (in Japanese). 2017-04-25. Archived from the original on 2020-08-11. Retrieved 2020-12-26.
  3. ^ エーアイ、「A.I.VOICE(TM)」を2/22販売開始 初回特典つき製品の予約は1/14開始. Dreamn News (Press release) (in Japanese). 2020-12-18. Archived from the original on 2021-01-13. Retrieved 2020-12-26.
  4. ^ エーアイ、個人向け英語音声読み上げソフトを12/10発売開始 「A.I.VOICE Kotonoha Akane & Aoi English」. サンスポ (Press release) (in Japanese). 2021-11-04. Archived from the original on 2021-11-04. Retrieved 2021-11-04.
  5. ^ A.I.VOICEの中国語版読み上げソフト「Kotonoha Talk」9/22国内発売開始. PR Times (Press release) (in Japanese). 2022-08-26. Archived from the original on 2022-10-19. Retrieved 2022-09-10.
  6. ^ 株式会社エーアイ (2020-06-26). エーアイの琴葉姉妹が歌う! 新世代歌声合成ソフト「Synthesizer V 琴葉 茜・葵」7/30発売. Dreamn News (Press release) (in Japanese). Archived from the original on 2020-07-03. Retrieved 2020-12-26.
  7. ^ NEUTRINO 琴葉 茜・葵ボイスソングライブラリについて. AI (Press release) (in Japanese). 2021-12-27. Archived from the original on 2021-12-28. Retrieved 2021-12-28.
  8. ^ クリムゾンテクノロジー株式会社 (2021-10-12). 「Voidol - Powered by リアチェンvoice -」追加ボイスモデルを発売. JIJI (Press release) (in Japanese). Archived from the original on 2021-11-01. Retrieved 2021-10-29.
  9. ^ 野澤佳悟 (2022-03-25). 誰でも「結月ゆかり」「琴葉 茜・葵」になれる声変換ソフト (Press release) (in Japanese). AVwatch. Archived from the original on 2022-06-23. Retrieved 2022-03-25.
  10. ^ "A.I.Voice Kotonoha Akane & Aoi English". A.I.Voice.