Kagamine Rin/Len (Vocaloid)

Kagamine Rin and Kagamine Len are VOCALOIDs developed by Crypton Future Media. They use VOCALOID 2 and VOCALOID 4 voice synthesis technology and are both voiced by Asami Shimoda . Like many other VOCALOIDs, they have performed in live concerts around the world using proprietary projection technology.
Rin's name and that of her twin brother Len are derived from the concept of "left" and "right," as in stereophonic sound. Their surname, Kagamine, uses the two Japanese kanji characters "鏡" (mirror) and "音" (sound). Shimoda has stated that she sings into her chest for Len's voice and sings from the top of her head for Rin's voice.

Development

Rin and Len were originally developed by Crypton Future Media using Yamaha's VOCALOID 2 software. They were the second version of the "Character Vocal Series," which included other popular VOCALOIDs, Hatsune Miku and Megurine Luka. Following Crypton's concept and direction, Rin's design was the first to be illustrated, followed shortly after by Len's. The software was released on December 27, 2007, and sold approximately 20,000 copies.
Due to numerous complaints about the difficulty producers had in composing music using the twins, a standalone package, "ACT2," was released. Those who purchased the original version were able to benefit from the updated "ACT2" version until September 2008.
In 2010, "Kagamine Rin & Len Append" was released, which allowed for additional vocal styles. For Rin, "Power," "Warm," and "Sweet" were included, while Len had "Power," "Cold," and "Serious." This allowed for a multitude of genre crossovers that both could now sing about while still sounding natural.
"Kagamine Rin/Len V4X" was released for VOCALOID 4 on December 24, 2015. Slight changes were made to the voice bank, and Rin now sang with the options "Power EVEC", "Warm", and "Sweet", while Len used "Power EVEC", "Cold", and "Serious". Enhanced Voice Expression Control (EVEC) is a new system developed for Piapro Studios. Rin and Len also received an English voice bank that was released on the same day as the Japanese voice banks. The English versions are available separately as downloads or bundled with the Japanese versions.

The Kagamine twins are popular for their casual appearance and short blond hair. Crypton Future Media initially provided KEI with the concepts for the twins, including the theme that they were "mirror images," that they were androids, and their approximate ages. Rin was the first of the two to be illustrated. Len's design came later and was based on Rin's initial design.

On the day the Kagamine Append package was released, it immediately ranked fifth in the total number of Vocaloid software sold during the year.

Character Information

Name: Kagamine Rin
Age: 14 years old
Birthday: December 27
Height: 152 cm
Weight: 42 kg

Add Suggested tempo Suggested vocal range
ACT 2 85-175 BPM F#3-C#5
Power 65-170 beats per minute F3-B4
Hot 60-160 beats per minute F3-B4
Soft 55-155 BPM G3-C5
V4X Suggested tempo Suggested vocal range
Power 50-170 beats per minute F2-E4
Hot 50-160 beats per minute F2-C4
Soft 55-155 BPM G2-D4
English 55-155 BPM G2-B3

Name: Kagamine Len
Age: 14 years old
Birthday: December 27
Height: 156 cm
Weight: 47 kg

Add Suggested tempo Suggested vocal range
ACT 2 70-160 beats per minute D3-C#5
Power 65-170 beats per minute A2-D4
Cold 60-160 beats per minute B2-C4
Serious 55-155 BPM A2-C4
V4X Suggested tempo Suggested vocal range
Power 60-170 beats per minute D2-D4
Cold 60-160 beats per minute E2-C4
Serious 55-155 BPM F2-C4
English 55-155 BPM E2-G#3

Music

Although most of Rin and Len's most popular songs are rock-oriented, they are also known for singing other genres, such as ballads and pop. Some of their most popular songs include:

Song title Year of release Producer
Tokyo Teddy Bear 2013 Neru
Alice in Musicland 2010 OSTER Project
Roshin Yuukai / Meltdown 2010 Iroha
Gemini 2009 Dixie Flatline
Kokoro / Heart 2008 Travolta-P
Gothic and Loneliness ~I am the real DIVA~ 2011 Narushima Takashi
Tengaku / Music of the Heavens 2014 Yuuyu-P
Melancholy 2010 Junky
Amatsu Kitsune / The Heavenly Fox 2012 slump

Links

Official website
Wikipedia
Wikipedia (Hatsune Miku)
Wikipedia (Megurine Luka)