D-Lin (Synthesizer V Studio)

* Digital (Dreamtonics Intl.)
* (Taobao)
* (AHS)

* AHS Store
* AHS Store (Starter Pack)
* AHS Store (Starter Pack; user discount)
* Dreamtonics (International)
* Dreamtonics (Intl.) (Bundle Set)
* Dreamtonics (Mainland China)
* Dreamtonics (Mainland China) (Bundle Set)
* ~~Dreamtonics (Mainland China) (+ Ritchy Dual Pack)~~
**Feature-Limited Trial**:

* AHS
* Dreamtonics

**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 February 27, 2023, Dreamtonics posted a poem on bilibili along with an announcement that new songs and other news were expected for February 28 at 17:00 GMT+8. Details were not specified but the first part of the poem seemed to describe the beauty of song and pronunciation in music across any language. The second part described the role of melodies and pitches in music, emphasizing the importance of rhythm. On February 28, a technical demo announcing the future support for the Cantonese dialect and rap was uploaded. The final part of the demo showed a new male voice database rapping in Mandarin Chinese and English. On April 18, along with the launch of Synthesizer V Studio version 1.9.0b, new vocalist "D-Lin" was confirmed to be the Mandarin rap-focused voice database showcased in February. He was accompanied by "Ritchy", a newly introduced English rap-focused voice database. Both were made available via a Feature-Limited Trial. The final release date for both voice databases was not yet announced.

On May 23, Synthesizer V Studio 1.9.0b2 was launched, focusing on rectifying design issues as addressed by the user base in the version 1.9.0b1 post-release survey. D-Lin and Ritchy were still noted to only be available via FLTs, though their version numbers were indicated as "v011". On June 21, with the release of Synthesizer V Studio 1.9.0, D-Lin's image was revealed when using the latest version of his FLT v100.

D-Lin and Ritchy were released simultaneously on AH-Software's store, and on Dreamtonics' International, Taobao, and WeChat Mini Program on July 4. D-Lin was available for purchase individually or as a bundle pack with the Synthesizer V Studio Pro editor, and exclusively on Dreamtonics's Taobao shop, he could be bought as a dual voice database pack with Ritchy while excluding the editor. D-Lin's FLT was confirmed to still be available despite the final version's release, encouraging users to try him before deciding on purchasing.

### Updates

#### Full Version

D-Lin AI v101b1 - August 2, 2023 A free update for D-Lin 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.

D-Lin AI v102b2 - September 28, 2023 A free update for D-Lin 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.

D-Lin AI v101 - October 19, 2023 Final version update compatible for Synthesizer V Studio 1.10.0 and enables D-Lin to use Reinforcement Learning from Human Feedback (RLHF) as well as other enhancements (as listed in v101b1 and v101b2's notes) if the beta version was not installed previously.

D-Lin AI v102 - October 26, 2023 A free update for D-Lin was released that added support for the Japanese language to the rap feature.

D-Lin AI v103b1 - December 18, 2023
A free update for D-Lin 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.

#### Free-Limited Trial (FLT)

D-Lin AI v011 - May 23, 2023
A free update for the FLT version of D-Lin 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.

D-Lin AI v100 - June 21 2023
A free update for the FLT version of D-Lin was released following the release of Synthesizer V Studio 1.9.0. This version of the vocal allowed for compatibility with the engine and its final adjustments based on feedback identified by the user base in the 1.9.0b1 post-release survey and for 1.9.0b2 in general.

## Voice Database Information

### Voice Databases

Product Information
**Optimum**

  **Genre:** Rap
**Versions**

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

D-Lin is a masculine Mandarin Chinese voice database designed for rap and was marketed to promote the new functionality and experience of Synthesizer V Studio 1.9.0's Rap support. As expected of an AI voice database, D-Lin is capable of singing with a more human-like and realistic voice.
**Vocal traits** as noted:

* D-Lin can confidently perform in the mid to high ranges with high tension.
	+ D-Lin was said to have a higher range and brighter tone in comparison to Ritchy, Dreamtonics's other debut rap vocalist who was designed for English.
* D-Lin excels at fast-paced rapping, described to smoothly fold multiple pronunciations into one crisp, clear, mid-ranged voice.
* His "Singing" mode was noted to have a distinctive husky timbre.
* With Diffusion Probabilistic Models (DPM), D-Lin 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, he 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, D-Lin can sing in not only Mandarin Chinese but also in English, Japanese, and Cantonese Chinese. Since the release of his v103b1 update on December 18, 2023, he can also sing in Spanish with this feature. This feature is only available in the Synthesizer V Studio Pro Editor.
	+ It should be noted that D-Lin's default language is set to Mandarin Chinese. He was confirmed to also be trained with English samples in order to further optimize his Cross-lingual Singing Synthesis capabilities, especially for rap. According to Dreamtonics, D-Lin had the capability to seamlessly blend English words into Mandarin Chinese rap.

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

* D-Lin comes with three variations:
	+ "HighTone"
	+ "MidTone"
	+ "LowTone"
* It should be noted that the Vocal Modes were uniquely calibrated for diverse rap performances and work best in D-Lin's Rap Mode.

**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
* Regarding the Feature-Limited Trial version:
	+ Individuals may only publish their works created with Synthesizer V AI D-Lin (FLT) for non-commercial purposes.
	+ When publishing works created with vocal, "Synthesizer V AI D-Lin Feature Limited Trial" must be specified in credits.
	+ The vocal has the following restrictions:
		- Track count: up to 1 track per project file.
		- Supported languages: English and Mandarin Chinese
		- Output duration: up to 45 seconds
		- Vocal Mode: not available
		- AI Retake (Timbre): not available
		- VST3/AU plugin: not available

**Voice database sample**

## References

1. ↑ https://t.bilibili.com/767295924844101665
2. ↑ https://twitter.com/LenKiMo/status/1630132094893719552 - Translation by @LenKimo
3. ↑ https://twitter.com/LenKiMo/status/1630132100216287233 - Translation by @LenKimo
4. ↑ https://twitter.com/LenKiMo/status/1630132108072218624 - Translation by @LenKimo
5. ↑ https://twitter.com/LenKiMo/status/1630132104104415233 - Translation by @LenKimo
6. ↑ https://twitter.com/LenKiMo/status/1630132111452811264 - Translation by @LenKimo
7. ↑ https://www.bilibili.com/video/BV1zs4y1f7QJ/
8. ↑ https://www.youtube.com/watch?v=mcJU0Wq-u7w
9. ↑ https://dreamtonics.com/synthesizer-v-studio-1-9-0b1-update-rap-cantonese-and-more/
10. ↑ https://dreamtonics.com/synthesizer-v-studio-1-9-0b2-update/
11. ↑ https://twitter.com/ahsoft/status/1660889562527465472
12. ↑ https://twitter.com/dreamtonics\_en/status/1671427830629154816
13. ↑ https://www.bilibili.com/read/cv24768774
14. ↑ https://twitter.com/dreamtonics\_en/status/1676123842601967616
15. ↑ https://www.ah-soft.com/press/synth-v/20230704.html
16. ↑ https://twitter.com/dreamtonics\_en/status/1686648078571655168
17. ↑ https://t.bilibili.com/825177687051993121
18. ↑ https://dreamtonics.com/synthesizer-v-studio-1-10-0b1-update-enhancing-pitch-generation-with-user-feedback/
19. ↑ https://twitter.com/ahsoft/status/1686653272474738689
20. ↑ https://twitter.com/dreamtonics\_en/status/1707304150059639108
21. ↑ https://dreamtonics.com/synthesizer-v-studio-1-10-0b2-update/
22. ↑ https://twitter.com/ahsoft/status/1707304906535956719
23. ↑ https://dreamtonics.com/synthesizer-v-studio-1-10-0-final-update/
24. ↑ https://twitter.com/ahsoft/status/1714919114182181140/photo/1
25. ↑ https://twitter.com/ahsoft/status/1717451110305366047
26. ↑ https://dreamtonics.com/synthesizer-v-studio-1-11-0b2-update/
27. ↑ https://dreamtonics.com/synthesizer-v-studio-1-9-0b2-update/
28. ↑ https://twitter.com/ahsoft/status/1660889562527465472
29. ↑ https://dreamtonics.com/synthesizer-v-studio-1-9-0-final-update/
30. ↑ https://twitter.com/dreamtonics\_en/status/1671427830629154816
31. ↑ https://dreamtonics.com/synthesizer-v-studio-1-9-0b1-update-rap-cantonese-and-more/