SynthV Wiki
Kotonoha Akane & Aoi
SynthV Studio

This article is about the Synthesizer V Studio software known as a voice database. If you are looking for the Synthesizer V character then click here.


On June 26, 2020, Kotonoha Akane & Aoi were announced to receive a shared singing library for Synthesizer V Studio.[1] In a press release held by AH-Software Co. Ltd. on the same day, their package was unveiled alongside Saki and the Synthesizer V Studio Pro editor. They were scheduled to release on July 30.[2] A special promotional campaign was held on AH-Software's online store until the end of September which offered up to half the price to those who own previous AH-Software products. Pre-orders for the Kotonoha package also began on June 26.[3] Three demos were released on the official AH-Software SoundCloud as well. The Kotonohas released on July 30 as expected.

Trial versions of the Kotonohas were released for the online Web Synthesizer V engine on July 22.[4] They also received a "Lite" version of their voice database for Synthesizer V Studio Basic on September 24.[5][6]

Voice Database Information[]



Synthtopia - Short version SoundCloud
泡沫のデザイア (Utakata no Desire) - Take 1 SoundCloud
泡沫のデザイア (Utakata no Desire) - Take 2 SoundCloud
Synthtopia - Full version Niconico YouTube
泡沫のデザイア (Utakata no Desire) - Full version Niconico YouTube

Voice Databases[]

Product Information
  Tempo: 70 ~ 180 BPM  Range: E3 ~ D5  Pitch Group: G#3, C#4, F#4, C5 (Falsetto)[7]

  Lite Version Available?: Yes  Starter Pack Available?: Yes  Web Version Available?: Yes

Package details as noted:
Kotonoha Akane and Aoi are a pair of vocalists sharing a single young female voice database. Different parameters in the program are used to produce two different sounding voices. AH-Software noted that the voice database can be soft, yet strong, and can handle a variety of songs, supporting a wide range of genres.[8]

Software issues as noted:
  • Because the pair is using a single voice database instead of two distinct ones per character, it is nearly impossible to tell who is singing a song without a producer explicitly stating the name.
    • In addition to this, producers may interpret Akane and Aoi's voices differently to others' preferences.
  • As the Lite voice databases are generally restricted to monopitch (one pitch) only, the Kotonohas' range is noted to be Cs4 in this version.

License agreements as noted:

Voice database sample
  • Kotonoha Akane & Aoi Standard Solfège:
  • Kotonoha Akane & Aoi Standard Lite Solfège:
  • A preview of the Kotonoha Synthesizer V Studio Standard voice database (provided by the Dreamtonics website):