Home Resources EULA

2022/11/13 (updated 2023/12/19)

A user-friendly summary of the license agreement applicable to each software product associated with Synthesizer V Studio.

Disclaimer

This article does not constitute legal advice. Always refer to the full original text of the license for the most up to date and legally binding terms.

License files can be found in the installation directory for each product. Where a web-based version of the license is available, it will be linked below.

Some restrictions may differ between individual users and corporate entities. The information below is focused on individual users.

Table of Contents

  1. Introduction
    1. License contents & common points
    2. Important terminology
  2. Software Components
    1. License summary & comparison
  3. Additional Topics
    1. Vocalochanger & other voice changers
1.1

License contents & common points

Product licenses typically refer to a few core topics:

  • Ownership of the license
  • Installation and use of the product activation code
  • Use of the synthesized output
  • Use of the associated branding, such as names, logos, and character designs

The comparisons below will focus on areas in which the licenses differ. All licenses include some common restrictions, such as:

  1. You may not attribute the synthesized output to names that do not match the product name
    • Attribution is not required, but if you do choose to credit the vocals you must not attempt to mislead the audience into believing that the vocals were produced by the original voice provider of the product, a human singer, or different software
    • People who operate vocal synthesis software, edit the synthesized vocals, or perform other similar tasks are typically credited as "Vocal Editor", "Vocal Manipulator", "Vocal Engineer", "Synthesizer Programmer", or some similar role
  2. You may not attempt to reverse-engineer the product
  3. You may not resell the product or share it between multiple users
  4. You may not create sample packs using the synthesized output
1.2

Important Terminology

For brevity, voice database products will be referred to as "SVDs" (singing voice databases).

The points compared below might be confusing to unfamiliar users, so they have been defined here for better understanding.

Number of Devices
Each product code allows for three activations, however the primary purpose of this is to account for accidental loss or hardware failure. Some products do not allow installation on multiple functional devices at the same time.
This column indicates whether you are allowed to install and activate the product on multiple devices. Keep in mind that even when multiple devices are allowed, they must be used exclusively by the product owner, not shared between multiple people.
Attribution
Indicates whether you are allowed, not allowed, or required to state the use of the product along with any works created. For example, stating "original song ft. Solaria".
Commercial Use (synthesized output)
Whether you are allowed to generate revenue from the synthesized output of the product. Some companies may require that you give them notice before using a product for commercial use.
Commercial Use (brand materials)
Whether you are allowed to generate revenue from the logo, character mascot, or other aspects of the product aside from the synthesized output. Where this is not specified in the license, it is best to assume permission is required.
Revenue Threshold
When commercial use is allowed, some companies will require further negotiation of a contract and claim royalties on a work if it exceeds a certain amount in revenue.
2.1

License Summary & Comparison


Product/Company Number of
Devices		 Attribution Commercial Use
(synthesized output)		 Commercial Use
(brand materials)		 Revenue Threshold
Basic Edition No limit Allowed Allowed Unspecified No limit
Pro Edition 1 Allowed Allowed Unspecified No limit
All "lite" SVDs No limit Required Not Allowed Not Allowed $0
Dreamtonics SVDs 3 Allowed Allowed Unspecified No limit
AHS SVDs 1 Allowed * Allowed Unspecified * No limit
* Some SVDs developed by AHS are associated with characters owned by other companies. For example, Tokyo6 characters do not allow commercial use of the character name or design without prior permission (Tokyo6 Contact), though some exceptions are made for non-business entities (independent users and doujin works).
Beijing Photek (Quadimension) 3 Allowed Notice Required
(project@quad-stardust.com)		 Permission Required $50,000
Animen (Volor) Unspecified Allowed Allowed Allowed $1,000 net/year *
* If a work is anticipated to or does reach the revenue threshold, the user is obligated to contact Volor (volor@animen.com.tw). Further contracts will be determined on a case-by-case basis.
Yamine Renri Unspecified Allowed * Permission Required
(contact)		 Permission Required $0
* Attribution is required for derivative visual works which use the Yamine Renri character design.
Eclipsed Sounds 3 Allowed Allowed Allowed No limit
Audiologie Unspecified Allowed Allowed Allowed $5,000 *
* The revenue threshold for Audiologie SVDs only applies to the use of the copyright image, not the synthesized voice.
E-CAPSULE (Voicemith) 1 Allowed Permission Required *
(application form)		 Unspecified No limit once authorized
* To receive permission you must contact vs@voicemith.com or submit the application form with a song preview link, complete lyrics text, and the kind of commercial use. E-CAPSULE will review the information and send a Commercial Consent Authorization Letter (PDF). This must be done for each song.
Bushiroad Music 1 Required Permission Required *
(contact form)		 Permission Required
* Commercial use of POPY and ROSE also requires that only approved distribution services are used to publish music to streaming services. Review the usage guidelines before publishing any commercial works and ensure you have taken the required steps.
3.1

Vocalochanger & Other Voice Changers

On December 7, 2022 Eclipsed Sounds made a statement regarding the applicability of section 3.2.3 in the EULA to voice changers such as Vocaloid6 Vocalochanger and DIFF-SVC (Twitter).

To summarize this policy, Eclipsed Sounds does not consider it a violation if a voice changer is used on the rendered output from their SVDs. This means you can use a Solaria render as input to Vocalochanger.

It is still absolutely prohibited to use the rendered output from Eclipsed Sounds SVDs as the input to develop a new voice changer, secondary synthesizer, or create a vocal-only sample pack.

It is important to note that this policy does not apply to any other SVD developer for SynthV Studio, and without clear guidance any use of rendered output from SynthV as input to a voice changer would violate the letter of the EULA.