Amitaro's Voice Material Studio — Terms of Use

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  IMPORTANT: These materials are NOT public domain, CC0, or
  "do whatever you want" free assets. All use is subject to the
  terms below. Please read carefully before using.

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If you can read Japanese, please refer to the Japanese terms of use.
The Japanese terms take precedence for users who can read and
understand Japanese.

  Japanese terms: https://amitaro.net/voice/voice_rule/

Full English terms: https://amitaro.net/voice/terms/
FAQ:               https://amitaro.net/voice/faq/

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SUMMARY

Credit is required. You must include:
  "Amitaro's Voice Material Studio (https://amitaro.net/)"
  or "Koharune Ami"
in a clearly visible location.

Credit formats:

  Voice clip or recording:
    Voice: Amitaro's Voice Material Studio (https://amitaro.net/)

  Official RVC model:
    RVC Model: Amitaro's Voice Material Studio (https://amitaro.net/)

  COEIROINK output:
    COEIROINK: Amitaro (https://amitaro.net/)

  SHAREVOX output:
    SHAREVOX: Amitaro (https://amitaro.net/)

  AI model training data:
    Training data: Amitaro's Voice Material Studio (https://amitaro.net/)

  UTAU voicebank (Koharune Ami):
    UTAU: Koharune Ami

  If a clickable link is not possible (video, print, etc.),
  a plain-text URL is acceptable.


Permitted:
  - Personal and commercial use, including monetization
  - Any purpose: games, videos, apps, software, and more
  - Audio editing, trimming, pitch-shifting, and other modifications
  - Using as a character voice or for virtual avatars
  - Using as training data to create AI or voice synthesis models
  - Bundling into games or apps (redistribution rules apply — see below)


Prohibited:
  - Use without credit
  - Any content not appropriate for children (sexually explicit content,
    adult themes, etc.), regardless of official age rating
  - Grotesque or violent content as the primary focus of a work
  - Political or religious activity, hate speech, discrimination
  - Fraud, scams, impersonation, or any deceptive use
  - Deepfakes — making it appear a real person said something they
    did not say
  - Automated voice fraud (vishing) or robocall scams
  - NFT projects or blockchain-based assets
  - Direct linking (hotlinking) to audio files hosted on Amitaro's
    servers — please download and host the files yourself
  - Redistributing or reselling voice files as a standalone collection,
    whether free or paid
  - Registering raw recordings in YouTube Content ID or any equivalent
    rights-claiming system (synthesized output is OK)
  - Submitting works to contests where copyright transfers to the
    organizer upon submission


Redistribution:

  Bundling in games, apps, MODs, or research is permitted.
  Include this Readme or a link to the terms page.
  Please send a brief notice within one month of release.
  Selling voice files as a standalone product is prohibited.

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AI VOICE MODELS (RVC, COEIROINK, etc.)

Training on these materials to create your own AI or voice synthesis
model is permitted. All content restrictions above apply.

If you distribute or publish a model trained on these materials,
the following rules apply:


  Credit (required):
  - State that Amitaro's voice was used as training data.
  - State that the model was not created by Amitaro.


  Distribution rules based on voice proportion:

  Amitaro's voice %  | Free release | Paid sale   | Service reg.
  ─────────────────────────────────────────────────────────────
  100% Amitaro       | Conditional  | Prohibited  | Prohibited
  ~50% or more       | Permitted    | Prohibited  | Prohibited
  ~50% or less       | Permitted    | Permitted   | Prior consult

  - If uncertain, treat as "50% or more."
  - Do not release or sell models in the same format as those
    officially distributed by Amitaro's Voice Material Studio
    (RVC, COEIROINK, etc.).
  - Models already published before Amitaro began official
    distribution of the same format do not need to be removed.
  - Bundling into your own software is welcome. Please contact
    Amitaro in Japanese before releasing.


  Official models distributed by Amitaro's Voice Material Studio
  may not be redistributed, resold, or re-registered in any service.

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CONTACT

FAQ:     https://amitaro.net/voice/faq/
Contact: https://amitaro.net/about/snslist/

All inquiries must be submitted in Japanese.
Inquiries in other languages cannot be answered.
Lack of response does not constitute permission or approval.

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Amitaro's Voice Material Studio — https://amitaro.net/
Last updated: 2026-06-01
