Welcome to my personal website.
I'm currently an undergraduate junior at University of Illinois, Computer Science + Math major.
My research interest is Speech Synthesis, in particular Singing Voice Synthesis (SVS). I was the author of Rocaloid, a SVS system. After resigning from Rocaloid development team, I continue working on my personal SVS researches & projects.
My Current Projects
- Moresampler - More than a resampler
An exotic synthesis engine that does everything, for singing synthesis software UTAU.
- libllsm - Low Level Speech Model
Speech model and vocoder for high quality speech/singing synthesis.
Source code: https://github.com/Sleepwalking/libllsm
- libgvps - Generic Viterbi Path Searcher
An implementation of Viterbi algorithm and lots of its variants.
Source code: https://github.com/Sleepwalking/libgvps
- libpyin - Probabilistic YIN
An implementation of Matthias and Dixon's pYIN fundamental frequency estimation algorithm.
Source code: https://github.com/Sleepwalking/libpyin
My Past Projects
- Rocaloid (2011-2015)
Originally it was an (unsuccessful) attempt to enable Hatsune Miku to sing in (Mandarin) Chinese; later turned into a general SVS system due to copyright issues; tens of thousands lines of codes written but also tens of thousands lines being thrown away; the lastest version became a bundle of a UTAU resampler and a set of utilities.
I quitted the development team on Sept 19, 2015 because Rocaloid lost its uniqueness as an expression of myself and our shared beliefs, and it was too late before I see this fundamental problem.
- ee-fft (2014)
My high school final essay on a Fast Fourier Transform implementation hand-optimized for Intel CPUs with SSE2 instruction set. Faster than Ooura FFT, slower than fftw3.
The good thing is, it is BSD licensed.
Source code & Essay: https://github.com/Sleepwalking/IB-EE-FFT
Musics. I'm a fan of Hatsune Miku whom I guess you can tell from the above projects. My favorite producers are Doriko, AVTechNO!, Mwk, Regulus, Orangestar and Bernis.
Non-anime musics: じゃんぐるカンガルー, In Love with A Ghost, Snail's House, DJ Okawari, Goose House.
A few months ago I learned guitar when doing intern at a music studio.
Photography. Wherever I go there're three things in my bag. Laptop, ultra-light electro-acoustic guitar, and EOS 5D MKIII.