MAIDLOID (メイドロイド) is a "text to speech" synthesizer developed and distributed by StudioS, and was released December 27, 2007.[1]


It is a voice synthesizing engine much like VOCALOID, but is made to create erotic sounds instead of singing. It can voice the 50 Japanese consonants along with several hundred terms to sound like a recreation of an eroge. There are a few extras, such as the ability to insert customized special sound effects. Acme Iku's voice can be used in games and animation and those works can be sold. However, it is illegal to distribute her full voicebank. There are exceptions with the Lite version.

Examples of UsageEdit

Some users have attempted to make the voicebank 'sing' and even proved successful by importing the Japanese syllables into Vocal Synthesis Tool, UTAU. However, the voicebank is not meant for musical purposes and like with the Macne Series users would need to own the original voicebank to legally be able to use this in UTAU database fully.

It is speculated that a majority of western UTAU users who have managed to secure the UTAU voicebank for their own usage do not own the original MAIDLOID product and it is estimated that the number of users who own it illegally is quite high. Part of the problem was that because other UTAU voicebanks are shared freely, users presumed that this practice was the same for MAIDLOID, even though this is not the case.

When ported to the UTAU software and used for 'singing', the lite version of the voicebank barely has any clarity and is difficult for even native Japanese speakers to understand.


Illu Acme Iku

Acme Iku

Acme Iku (阿久女イク) is the personification of StudioS' MAIDLOID software. Her voice is provided by the Japanese voice actress, Sayaka Keina (計名さや香; Keina Sayaka). Her illustration is by Shin. Her concept is a housemaid android who is meant to be a lewd and cute character.

Her name Acme in kanji is the choice of corresponding pronunciation and has no valid literal interpretation. In katakana 'Acme' in Japanese literally means "orgasm." And Iku is a common erotic moan in Japan, meaning "to come, to orgasm." As such, her name translates into a sexual innuendo. Her name simplified in hiragana is "あくめいく".

Iku is featured as a playable character in the Japanese PC doujin game Super Strip Fighter IV (スーパーストリートファイターⅣ). Her voice bank is used, and some of her attacks consist of use of her hair, she is able to use her hair accessory and throw or swing it at her opponents.[2]
Age: 1 (officially) / Height: 145 cm / Weight: SECRET! (ナイショ! (NAISHO!) /
Vocal Range: Good vocal range, Lolita treble / Tempo: H-mode / Genre: Hentai, Ecchi


  • In 2011, a Japanese producer by the name of Paraoka, created three songs using the software and released a doujin album, "Training Diary".[3]
    • The songs are Nightmaid, Slashmaid, and Chaosmaid, all of which can be sampled for listening on niconico.[4]



  1. YouTube MAIDLOID Opening Theme
  2. YouTube Super Strip Fighter IV footage
  3. Official CD site: Paraoka ft. Acme Iku (
  4. niconico Chaosmaid

External linksEdit