Chiyu

* SV
* SVS

**Chiyu** (赤羽) is a Mandarin Chinese Synthesizer V voicebank developed by Beijing Photek S&T Development Co., Ltd. and was released in April 2019. She is part of the Medium⁵ cast. In July 2020, she was updated to Synthesizer V Studio along with the rest of the Synthesizer V Medium⁵ cast.

## Concept

A shape known as the tetrahedron appeared on Chiyu's logo. It is present in the second stroke of "赤" character in her name. In the spiritual meaning of Metatron's Cube, the tetrahedron represents fire, which influenced her design, name, and concept.

In March 2019, Chiyu was revealed to be part of the Medium⁵ cast and was one of the girls who derived from a single being known as ZERO who possessed Metatron's Cube. She is listed as a Sagittarius.

### Etymology

**Chì** (赤) means "red" or "scarlet" while **yǔ** (羽) means "feather", "plume", or "wing". **Yǔ** is also the fifth note in the Chinese pentatonic scale (la). Together, her name means "scarlet feather".

Her name is rendered in Kana as "チーユ".

### Appearance

The red feathers on Chiyu's design symbolize the pheonix.

### Personality

According to the Dreamtonics website, Chiyu is described as a brave and honest girl.

### Relations

* ZERO - Originator
* Xingchen - Younger sister
* Haiyi - Younger Sister
* Shian - Younger Sister
* Cangqiong - Older Sister
* Muxin - Fellow MEDIUM5 vocal

## History

### 2017

On November 13, 2017, the head of Beijing Photek S&T Development Co., Ltd., Ddickky, noted that people seem to think that Xingchen was easy to manage because she was the company’s only VOCALOID. He mentioned that he wanted to try to "have five to take care of" to see how challenging it was to manage more characters and asked fans to "stay tuned". This seemingly hinted that there may be additional characters aside from Xingchen in the future. Later that month, it was mentioned that because Beijing Photek wanted to save money to produce content, some big news would be announced at Quadimension Live Tour rather than at a separate conference. This included new merchandise, new official art, and if there was time, new games or voicebanks. It was not specified if these voicebanks were for Xingchen or for any new characters. Details about the announcement are currently unknown.

### 2018

On April 14, 2018, Ddickky mentioned that the names and designs of the fire, earth, and air characters were decided. While it was not stated what this refers to, it was possible that these characters may be part of Xingchen and Haiyi's series.

On November 9, Haiyi mentioned some "younger sisters", possibly referring to the other elemental characters within the series though not explicitly confirmed.

### 2019

On February 1, 2019, Chiyu's name appeared in a crossfade video for Haiyi's solo album "Atlantis".

On March 28, Ddickky posted on weibo that Chiyu, Shian, Cangqiong, two Xingchen voicebanks, and an unknown male voice were moving over to Synthesizer V. On April 9, Chiyu's silhouette was shown. Her voice was shown the next day, although she only sang in "Na"s. Another demo was shown and written by kide.

On April 16, it was announced that Chiyu's voicebank would be available for preorder starting on April 19. According to her product page, it was confirmed that she would release on April 30 as a digital download. It was revealed on her first demo that she was designed by Hanasa, ATDan, and Kurumimi. Her voice provider was confirmed to be YouMao (UNEKO) (呦猫UNEKO).

### Synthesizer V Studio

In January 2020, Ddickky confirmed that he learned about the second generation of the Synthesizer V engine in mid-2019. He wrote that it was in the works and was expected to be ready by the end of 2019, but it was pushed to around February or March 2020. He confirmed that Haiyi was the last to release for the first engine and that the next voicebank would release for the new one. In addition, he had plans to gradually update each of Beijing Photek's first engine voicebanks, and depending on the development costs, users who owned any of the four vocals would be able to receive the update for free or for a low price.

On April 9, Chiyu's "SVR2" version was announced to be revealed in addition to information about the updated engine itself. On June 26, 2020, it was announced that Chiyu and the other released members of Medium⁵ would receive a ported update to Synthesizer V Studio. These would be released on July 10. Users who already owned Synthesizer V and/or the original Medium⁵ vocals received a special discount.

## Voicebanks

Main
The standard voicebank for Chiyu
* Chiyu (*Synthesizer V*), April 30, 2019
* Chiyu (*Synthesizer V Studio*), July 10, 2020

Falsetto
A falsetto voicebank for Chiyu
* Chiyu (*Synthesizer V*), April 30, 2019
* Chiyu (*Synthesizer V Studio*), July 10, 2020

## Reputation

### Achievements

* First Beijing Photek S&T Synthesizer V vocal to be released.
* First female Beijing Photek S&T Synthesizer V vocal to be released.
* First Mandarin Chinese Beijing Photek S&T Synthesizer V vocal to be released.
* First Beijing Photek S&T vocal overall to be receive more than one voicebank.
* One of the first Synthesizer V vocals to be updated to Synthesizer V Studio.
* One of the first Synthesizer V Studio female voicebanks to release.
* One of the first Beijing Photek S&T Synthesizer V vocals to be updated.
* One of the first Mandarin Chinese voicebanks for Synthesizer V Studio.

## References

1. ↑ https://www.weibo.com/5056093502/HeGaXl6sx
2. ↑ https://imgur.com/a/uNyloOz
3. ↑ https://jelila.wordpress.com/tag/spiritual-meaning-of-metatrons-cube/
4. ↑ https://www.bilibili.com/video/av42960488
5. ↑ 5.0 5.1 Dreamtonics Line Up
6. ↑ https://weibo.com/2182360953/FuT1Rs9Re
7. ↑ https://weibo.com/5056093502/FwBfo4w3t
8. ↑ https://www.weibo.com/6460110224/H1TmoFxXr
9. ↑ https://www.bilibili.com/video/av42262256
10. ↑ https://www.weibo.com/2182360953/Hn3f83q9L
11. ↑ https://www.weibo.com/5599743152/HoQy4C2eS
12. ↑ https://www.weibo.com/5599743152/Hp9dAtP34
13. ↑ https://www.bilibili.com/video/av49054605
14. ↑ https://www.weibo.com/5056093502/HpU6BB1eS
15. ↑ https://www.weibo.com/2182360953/IqWDMgyGP
16. ↑ https://www.weibo.com/5056093502/ICxlpBPw4
17. ↑ https://www.weibo.com/5056093502/J8zzR6Xk9

## External links

### Official

* Weibo
* bilibili playlist