UTAU Software Usage Policy
5. Do not import voicebanks from other voice synthesis softwares without permission. This means:
6. You can't make voicebanks out of existing softwares like Vocaloid. Yamaha, as well as the third-party companies that produce Vocaloid voices, forbid this kind of activity.
7. You can't make voicebanks out of voice speech/synthesis softwares unless they give you permission. This includes voicebanks based on Microsoft SAM, and others. Out of respect, UTAU wiki does not promote usage of such voicebanks. The only seen exceptions here are the Macne family, Acme Iku and FL Studio voices.
9. Do not record voicebanks of an individual (defined as a nobody, a typical person) without their consent. Even if the individual is dead, it still should not be done.
10. Do not record voicebanks of a popular figure such as (but not limited to) showbiz figures, politicians and other singers, without their consent. It is seen to be a danger to the program's survival, making the program, its author, and those who recorded it highly susceptible to lawsuits and legal action (Examples: Shakira, Megumi Nakajima)
If you are complying with all the statements listed above, we'd be glad to give you advice on how to create voicebanks.