History Music / SynthV

** Haruno Sora was previously released for both Music/{{Vocaloid}} and VOICEROID before her [=SynthV=]] voicebank in 2023.

** The most famous Music/{{UTAU}} vocal of all, Kasane Teto, became a Synthv voice bank in 2023.

* ObviousBeta: Both Renri and GENBU are stated on their download page to be demo versions "not rated for production yet". This is more noticeable with GENBU (especially his original demo), whose Tension parameter appears to be bugged; increasing Tension to the max has a very slight effect, while decreasing it immediately softens his voice to the point it's almost unrecognizable.

* ImprobablyFemaleCast: Before 2022 there were only two male voices (Genbu and Muxin) compared to the much larger cast of female voices. Since then there have been more male and even androgynous voices to even out the radio, though there are still a greater number of female voices overall.

* ThirtyDayFreeTrial: Subverted. The demo does count how many days ago you started evaluating it without buying a license[[note]]and will keep counting from the first install even if you un- and then reinstall it[[/note]], but it still works no matter how long you use it. [[https://forum.synthesizerv.com/t/can-you-share-content-you-make-in-the-synth-v-trial-or-is-a-license/214/5 The devs have also clarified that you may upload non-commercial works made with the demo]]. However, you have to buy a license if you intend to monetize works made with the program.

** The most famous Music/{{UTAU}} vocal of all, Kasane Teto became a Synthv voice bank in 2023.

* SurprisinglyGoodEnglish: [[https://www.youtube.com/watch?v=ex3HRrxEcLE The YouTube version of the demo song Something New has [=AiKO=] successfully backing up Eleanor Forte]], despite [=AiKO=] only having a Chinese voicebank.
** With the introduction of cross-language synthesis, any full AI vocal can now do this, as seen [[https://www.youtube.com/watch?v=T1jwVa_w3Zw here.]]
** Tsurumaki Maki was the first character to be released as a separate Japanese and English voicebank (before cross-language synthesis was released). Though she has her quirks[[note]]such as taking slightly longer to pronounce her Rs than native English voicebanks[[/note]], her English is remarkably solid for someone with a Japanese voice provider.

In October 2020, another generation was announced known as Synthesizer V AI, which instead utilizes deep learning artificial intelligence rather than the traditional tuning method. AI was first introduced to the program on February 18, 2021, and the software has been receiving periodic updates since then, now including AI-based tuning, cross-language synthesis, different Vocal Modes, High Dynamics Voice Models, and the ability to do 'retakes'.

* ImprobablyFemaleCast: There are currently 24 released female voices and only 8 released male voices. Before 2022 there were only two male voices (Genbu and Muxin).

** Yamine Renri is an {{Music/UTAU}} vocal, and her vocals in [=SynthV=] are explicitly rebuilt off of her voicebanks in that software.