Cheng Xiao (Synthesizer V Studio)

* Digital (Dreamtonics Intl.)
* (Taobao)

* Dreamtonics (International)
* Dreamtonics (Intl.) (Bundle Set)
* Dreamtonics (Mainland China)
* Dreamtonics (Mainland China) (Bundle Set)

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

## History

On December 23, 2022, Dreamtonics posted a new teaser poem seeming to indicate that a new voice database was to be showcased on December 24 at 17:00 GMT+8. The poem was stylized to be similar to ancient Chinese poetry and depicted a variety of Peking opera expressions, suggesting that the next vocal may be focused on Peking opera. On December 24, Cheng Xiao was revealed to be a new synthetic feminine Mandarin Chinese voice database based on the impression of Peking opera singers. Unlike Feng Yi before her, who could sing in Peking opera style using the "Opera" Vocal Mode, Cheng Xiao's training material was completely sampled from and her singing style was based on Peking opera, marking her as the first commercial voice database to be completely based on this genre. She was expected to release in the near future.

On January 9, 2023, Cheng Xiao was released on Dreamtonics's Taobao store. From then until January 23, she would be available at a discounted price via Taobao and WeChat. As a standalone product, her discounted price was set to 479 yuan compared to the regular 599 yuan. For bundle with the Synthesizer V Studio Pro editor, the discount price was set to 899 yuan compared to the regular 999 yuan. Cheng Xiao was later made available at the Dreamtonics International store as a standalone product or featured in a bundle pack with the Synthesizer V Studio Pro editor on February 16.

### Updates

Cheng Xiao AI v101b1 - April 18, 2023
A free update for Cheng Xiao was released following the Synthesizer V Studio 1.9.0b1 update. This implemented the new rap feature available for the English and Mandarin languages. Cantonese Chinese was added to the Cross-lingual Singing Synthesis feature as well as general improvements to the overall function, resulting in more accurate pronunciation that sounds closer to a native speaker when singing foreign words.

Cheng Xiao AI v101b2 - May 23, 2023
A free update for Cheng Xiao was released following the Synthesizer V Studio 1.9.0b2 update. This version of the vocal allowed for compatibility with the engine's second beta, which focused on rectifying several design issues identified by the user base in the 1.9.0b1 post-release survey.

Cheng Xiao AI v101 - June 21 2023
Final version update compatible for Synthesizer V Studio 1.9.0 and enables Cheng Xiao to use the rap feature (English and Mandarin Chinese only) and allow for Cantonese Chinese Cross-lingual Singing Synthesis if the beta versions were not installed previously.

Cheng Xiao AI v102b1 - August 2, 2023 A free update for Cheng Xiao was released following the Synthesizer V Studio 1.10.0b1 update. This enhanced pitch generation by utilizing Reinforcement Learning from Human Feedback (RLHF), translating to fewer off-key errors, making better use of vibrato, and creating more expressive transitions between notes. This also allowed for the use of the new "Enhancement" slider in the AI Retakes panel, which controlled the level of changes introduced by RLHF. For Synthesizer V Studio Pro users, feedback submission was enabled, allowing users to consensually share their preferred takes with only Dreamtonics for research and development purposes, where models trained with this feedback would be deployed in future voice database updates. Users may also opt out of this feature if undesired.

Cheng Xiao AI v102b2 - September 28, 2023 A free update for Cheng Xiao was released following the Synthesizer V Studio 1.10.0b2 update, which was the second beta version following version 1.10.0b1 that introduced enhancements to voice databases and integrated the latest user feedback via Reinforcement Learning from Human Feedback (RLHF). Regarding the editor, numerous reported issues were addressed for a more fluid experience. A new generation of pitch models were trained using the extensive feedback from users over the past month, and the new models offered greater accuracy in voice timbre reproduction, as well as a reduction in mispronunciations. Dreamtonics also focused on issues from the previous beta release that made Vocal Modes seem less distinct on certain vocals, ensuring clearer differentiation in the 1.10.0b2 update. The latest update also introduced a new feature in the Note Properties Panel that allowed for even division of a note into multiple syllables, proving to be a useful tool for songs with faster tempos.

Cheng Xiao AI v102 - October 19, 2023 Final version update compatible for Synthesizer V Studio 1.10.0 and enables Cheng Xiao to use Reinforcement Learning from Human Feedback (RLHF) as well as other enhancements (as listed in v102b1 and v102b2's notes) if the beta version was not installed previously.

Cheng Xiao AI v103 - October 26, 2023 A free update for Cheng Xiao was released that added support for the Japanese language to the rap feature.

Cheng Xiao AI v104b1 - December 18, 2023
A free update for Cheng Xiao was released following the Synthesizer V Studio 1.11.0b2 update. This implemented support for the Spanish language in the Cross-Lingual Singing Synthesis feature.

## Voice Database Information

### Voice Databases

Product Information
**Optimum**

  **Genre:** Peking Opera, Opera
**Versions**

  **Lite Version/FLT Available?:** No  **Starter Pack Available?:** Yes  **Web Version Available?:** No
**Package details** as noted:

Cheng Xiao is a feminine Mandarin Chinese voice database. As expected of an AI voice database, this enables her to sing with a more human-like, natural, and realistic voice. She is a synthetic voice created with the image of a professional Peking opera singer and actress.
**Vocal traits** as noted:

* Unlike Feng Yi before her, who could only achieve Peking opera-styled singing through the use of her "Opera" vocal mode, Cheng Xiao was a voice database completely dedicated to the genre, including her articulations. Because of this, she may have difficulty singing songs in a wide range of genres but would have a unique advantage in musicals and opera, especially Peking opera.
* According to Mouzhize, one of the early testers, Cheng Xiao was described to have high controllability, a solid sound, and nice resonance. Several sounds could be matched with each other to create different textures.
* According to Dreamtonics, her vocals possessed a strong, resonant following with an attractive traditional Chinese flavor.
* With Diffusion Probabilistic Models (DPM), Cheng Xiao can sing more realistically through changes in volume and breath, further enriching singing details, making each singing unique, and providing creators with more options. Through this mode, she can use AI Retakes to create multiple "takes" of a sung section to find an ideal vocal without the need for "laborious tuning". This feature is only available in the Synthesizer V Studio Pro Editor.

**Phonetic notes** as noted:

* Phoneme format: X-SAMPA
* Through Cross-lingual Singing Synthesis, Cheng Xiao can sing in not only Mandarin Chinese but also in English and Japanese. Since the release of her v101b1 update on April 18, 2023, she can also sing in Cantonese Chinese with this feature; since her v104b1 update on December 18, she can also sing in Spanish with this feature. Cross-lingual Singing Synthesis is only available in the Synthesizer V Studio Pro Editor.

**Vocal Modes** as noted (Synthesizer V Studio Pro Editor only):

* Cheng Xiao comes with three variations within the Vocal Mode function:
	+ "Open"
	+ "Closed"
	+ "Resonant"

**License agreements** as noted:

* Dreamtonics Co., Ltd.'s End User License Agreement - Japanese
* Dreamtonics Co., Ltd.'s End User License Agreement - English
* Dreamtonics Co., Ltd.'s End User License Agreement - Simplified Chinese

**Voice database sample**

## References

1. ↑ https://t.bilibili.com/742804307600998440
2. ↑ https://twitter.com/LenKiMo/status/1606215331273265152 - Translation by @LenKiMo
3. ↑ https://www.bilibili.com/video/BV1Y14y1P7mM/
4. ↑ https://www.bilibili.com/read/cv21073913
5. ↑ https://dreamtonics.com/synthesizer-v-studio-1-9-0b1-update-rap-cantonese-and-more/
6. ↑ https://twitter.com/dreamtonics\_en/status/1648235081608343552
7. ↑ https://dreamtonics.com/synthesizer-v-studio-1-9-0b2-update/
8. ↑ https://twitter.com/dreamtonics\_en/status/1660888307482656771
9. ↑ https://dreamtonics.com/synthesizer-v-studio-1-9-0-final-update/
10. ↑ https://twitter.com/dreamtonics\_en/status/1671427830629154816
11. ↑ https://twitter.com/dreamtonics\_en/status/1686648078571655168
12. ↑ https://t.bilibili.com/825177687051993121
13. ↑ https://dreamtonics.com/synthesizer-v-studio-1-10-0b1-update-enhancing-pitch-generation-with-user-feedback/
14. ↑ https://twitter.com/dreamtonics\_en/status/1707304150059639108
15. ↑ https://dreamtonics.com/synthesizer-v-studio-1-10-0b2-update/
16. ↑ https://dreamtonics.com/synthesizer-v-studio-1-10-0-final-update/
17. ↑ https://dreamtonics.com/synthesizer-v-studio-1-11-0b2-update/
18. ↑ https://space.bilibili.com/593592382/favlist?fid=1655788882 - These songs were featured in an official bilibili playlist featuring demos and recommended songs. Certain users were invited to create songs using earlier versions of the voice database and release the songs in sequence after the product's release as a complement to official demo tracks. It should also be noted that certain songs may not be involved with the early invitation and were added based on the company's preference. Only songs that feature Cheng Xiao as a main vocalist would be added to this demo table.