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AURA — Credits

Last updated: 2026-10-30 / App: AURA (Android) / Provider: Black Cat Fortune Works (Kuroneko Fukuya)

This page lists the sounds, voices, and libraries AURA uses whose licenses require a credit. In the app, you can read the full list, which also includes fonts and more, in Settings > Info & support > Terms and privacy > Licenses.

Credits required by the licenses are shown in their original form, with an English explanation.

Sound effects​

AURA uses sound effects from OtoLogic for the sounds at the start of read-aloud (the news sound and the breaking-news sound).

  • Sound effects: OtoLogic (https://otologic.jp) CC BY 4.0
  • The length and volume of some sounds have been adjusted.

License: CC BY 4.0. OtoLogic does not endorse AURA.

Audio briefing voices​

The voices of the Japanese audio briefing of AURA Brief use VOICEVOX voice libraries.

  • VOICEVOX:猫使アル・VOICEVOX:猫使ビィ (voice libraries from the Nekotsuka project)
  • AURA does not use or distribute the characters' official images, and does not use the voices it creates to train AI.

Japanese voice (AI voice)​

  • A voice created from koniwa (tnc) audiobook recordings. Audio: テレビ西日本 (TV Nishinippon) (CC BY 3.0). The texts read aloud are works whose copyright has expired.

Dictionary for the tone estimate​

AURA Brief's tone estimate uses the Japanese Sentiment Polarity Dictionary (commercial use is permitted with credit).

  • Authors: 東北大学 乾・岡崎研究室 (Inui-Okazaki Laboratory, Tohoku University). Predicates, ver.1.0 (用言編 ver.1.0) (小林のぞみ, 乾健太郎, 松本裕治, 立石健二, 福島俊一. 意見抽出のための評価表現の収集. 自然言語処理, Vol.12, No.3, pp.203-222, 2005) · Nouns, ver.1.0 (名詞編 ver.1.0) (東山昌彦, 乾健太郎, 松本裕治. 述語の選択選好性に着目した名詞評価極性の獲得. 言語処理学会第14回年次大会論文集, pp.584-587, 2008)
  • Japanese Sentiment Polarity Dictionary (日本語評価極性辞書)