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IA (イア) is a Japanese VOCALOID developed and distributed by 1st Place Co., Ltd., and was released in January 2012 for the VOCALOID3 engine. Her voice is provided by the Japanese female singer-songwriter, Lia, known for "Tori no Uta". In July 2016, an English voicebank was confirmed to be in the works.[1][2]


IA is the first vocal in the "- ARIA ON THE PLANETES -" project.[3]

The design philosophy 1st Place worked toward was to make the voice simple and straightforward but easy to adjust and customize, letting creators create their own version of IA.[4]


"IA" is taken from her voice provider's name, "Lia".

There are at least two ways to read her projects name of "- ARIA ON THE PLANETES -":

  • The words "Aria" and "Planetes" are Latin and Greek for "open space" and "planet" respectively, giving the translation of "Open Space on the Planet".
  • "Aria", is also the Italian word for "air" and is used as a term in opera for expressive pieces, usually sung by a single singer. This also fits in with her more opera-esque vocal results compared to other released Japanese Vocaloids.

When she was first released, overseas fans often mistook "Aria" as the name of the Vocaloid.


Her design was illustrated by Aka Akasaka (D. Z.), while the design direction was by Maxilla Inc.[5] It was decided that they would go for soft colours instead of Vivid ones. At the time, there was skepticism towards avoiding vivid colours as there was a fear of her not selling because of the softer tones. Lia herself wanted her to be cute and pretty and was satisfied the first time she was shown the artwork.[6]

Despite the myth of IA's age being 15, she has had no age assigned to her. This myth seems to originate from a section underneath the paragraph on IA about her provider Lia, wherein one of the first things mentioned was that Lia debuted in America at 15 years old.


  • ONE; is a vocal created for CeVIO able to talk as well as sing. She is the second vocal in the "- ARIA ON THE PLANETES -" project.

Music featuring IAEdit

Examples of usage

Romaji/English Roku Chounen to Ichiya Monogatari (A Tale of Six Trillion Years and a Night)
Featuring IA
Author(s) kemu
Category Original song
Romaji/English Kagerou≒Variation (Shadow-Haze≒Variation)
Featuring IA
Author(s) Yairi
Category Original song
Romaji/English Lost One no Goukoku/DIVELA REMIX
Featuring IA ROCKS
Author(s) DIVELA
Category Cover song
Romaji/English Setsuna Drive
Featuring IA ROCKS
Author(s) Taki Yoshimitsu
Category Original song
Search for music featuring IA [show/hide]

Additional informationEdit


Coneckers ia02

The garage kit IA

Information on IA was released much slower than the average VOCALOID. Her promotions have taken the approach to make her seem otherworldly and mysterious.

The licensing for IA is slightly different than past VOCALOIDs, and it is worth taking the time to read this page for more details. Unlike some past VOCALOIDs, users can use her image on CDs, flyers and posters without requesting permission, although some consent from the company is needed for greater use of her image. This is a departure from past VOCALOIDs such as Crypton Future Media, who require you to ask permission for use of their VOCALOIDs' images on things such as CDs, flyers and posters.

1st Place likes collaborations between their company and others. Their marketing style was designed to introduce IA to people unfamiliar with VOCALOID, expanding their audience.[7]

See also: IA/Marketing and VOCALOID in other media


IA's character status

IA developed a good reputation as a reliable voicebank library among many producers, this owed to much of her success. IA was well received and had many hits in the Nico Nico Douga weekly rankings after her release.

Within 6 months of her release, several songs hit 1,000,000+ views on Nico Nico Douga, whereas none of the other VOCALOID3 vocals achieved success of this caliber until December 2014 when Yuzuki Yukari managed to achieve her first 1,000,000 song. This put her on par with some of the more successful VOCALOID2 era voicebanks. Lia herself was reported as surprised when she became popular as she did not expect her to do so well. She also commented on how there were many fans of IA who did not even know who she (Lia) was.[6]

On 1st July 2015, it was announced that her playback of related videos had reached 100 million, views were coming in from both Japan and abroad. She had also experienced several live performances in Taiwan, France and North America. This lead to the release of her official app.[8][9]


IA's popularity has lead to further vocal development being considered for her and in 2014, IA-ARIA ON THE PLANETES - α Type C was released as a trial version via a one-month long feedback campaign. Several months later, it was announced that the finalized version of the new vocal library would be made available for sale in June of the same year. Her popularity also allowed her to expand into other languages. In mid-2016, an English vocal was announced.


A survey released in 2015 in relation to the popularity of the Vocaloids on website Nico Video revealed IA was the 4th most popular Vocaloid for 2014.[10]

  • First 1st Place VOCALOID released.
  • First female VOCALOID released by 1st Place.
  • First VOCALOID3 to hit over 1 million views on NND.
  • Having the highest tempo among all VOCALOIDs.
  • First new VOCALOID3 to receive an additional voicebank upgrade.


Do you like IA?

The poll was created at 00:14 on November 20, 2015, and so far 2260 people voted.
What characteristic of IA do you like?

The poll was created at 00:14 on November 20, 2015, and so far 2232 people voted.


Ia 300x172
The image gallery for IA may be viewed here.


External linksEdit

Japanese 1st Place official homepage Link
Japanese VOCALOIDia IA Discography Link
Japanese IA PROJECT The official Facebook page for VOCALOID IA Link
English IA WORLD Page The official overseas Facebook page for VOCALOID IA Link
English IA @IAWorldpage The official overseas Twitter account for VOCALOID IA. Link
Japanese IAPROJECT The official YouTube channel for VOCALOID IA Link
Japanese IA Project The official tumblr for VOCALOID IA Link
English IA (Instagram) Official Instagram Account Link
English IA on Tokyo Otaku Mode Official English page for related IA merchandise and information Link
Japanese IA Project (Jin) Producer apart of Project Link
English VOCALOID shop Product page for IA Link
English VOCALOID shop Product page for IA ROCKS Link
English deviantArt , art and media community Link
Japanese Pixiv , art and media community Link


Start a Discussion Discussions about IA

  • English Voicebank?

    15 messages
    • @DIA: This thread's last response is over a year old. Since then, IA English has in fact entered production. I predict that she may be released...
    • I'm so happy.
  • Is there a trial for IA ROCKS?

    7 messages
    • Can you post a link to the trial of Yukari?
    • Technoid1 wrote: Can you post a link to the trial of Yukari? There's also a trial for her ...

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