Lingfeng Xu is a software engineer in California with 11 years of experience spanning game development, semiconductor verification, and large-scale software at Google. He brings deep systems and algorithmic skills from a background in electrical engineering and DV/verification roles at Marvell and Cirrus Logic, and has led post-launch game development at Babeltime. Proficient across C/C++, C#, Python, Go, Java, Lua, JavaScript and Unity, he combines low-level performance tuning with user-facing feature work. Lingfeng is an active open-source contributor to OpenUtau, improving audio synthesis, piano-roll rendering, and UI autocomplete—an indicator of both signal-processing chops and attention to UX. He holds degrees from Shanghai Jiao Tong and the University of Michigan, blending rigorous academic training with hands-on production delivery.
Open singing synthesis platform / Open source UTAU successor
Role in this project:
Back-end Developer
Contributions:139 releases, 53 reviews, 906 commits in 8 years 3 months
Contributions summary:Lingfeng's contributions focused on refining the OpenUtau audio synthesis platform. They implemented changes to improve the user interface for lyric box and auto-complete. They also worked on core functionality of the audio rendering, improving the processing of the piano roll notes, fixing issues in playback, implementing a command to set the tempo, and fixing problems with the rendering and saving of the audio tracks.
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