Hongchan Choi
Tech Lead & Manager at Stanford University
Mountain View, California, United States
Summary
🤩
Rockstar🎓
Top SchoolHongchan Choi is a Tech Lead and Manager at Google Chrome with 13 years of experience building web audio and music technology, and he leads the Web Audio/MIDI API efforts for Chromium while co-chairing the W3C Audio Working Group. He bridges academia and industry as an adjunct at Stanford CCRMA and a keynote speaker at major conferences, translating deep expertise in computer music (DMA/PhD) into production-quality browser features. His hands-on contributions span testing and spec work (notably Web Platform Tests for Web Audio), front-end DevTools enhancements, and spatial audio projects like Omnitone, reflecting full-stack fluency in audio systems. An Emmy-recognized engineer, he pairs rigorous specification editing with practical sample code and UI improvements, proving rare domain knowledge across DSP, APIs, and developer tooling. Based in Mountain View, he brings a musician’s sensibility to engineering problems—often surfacing subtle audio behaviors (e.g., denormal handling and sinkId semantics) that most engineers miss.
13 years of coding experience
3 years of employment as a software developer
Master of Music (MM), Computer Music Composition, Master of Music (MM), Computer Music Composition at Dongguk UniversityBachelor of Engineering (BE), Information Engineering, Bachelor of Engineering (BE), Information Engineering at Sungkyunkwan UniversityMaster of Arts (MA), Computer Based Music Theory and Acoustics (CCRMA), Master of Arts (MA), Computer Based Music Theory and Acoustics (CCRMA) at Stanford University
English, Korean
Stackoverflow
106reputation
5kreached
6answers
0questions
Github Skills (29)
javascript10
ui-design10
devtools10
audio10
uid10
web-audio-api10
front-end-development10
developer-tools10
documentation10
test-automation10
api-design9
audio-processing9
css9
automation9
fabric9
Programming languages (11)
Github contributions (5)
GoogleChrome/omnitone
Jun 2016 - Jan 2019
Spatial Audio Rendering on the web.
Role in this project:
Back-end Developer & DevOps Engineer
Back-end Developer & DevOps EngineerContributions:23 releases, 321 commits, 74 PRs in 2 years 7 months
Contributions summary:Hongchan's commits focused on refining the codebase and implementing new features, including the addition of disable/bypass modes, which involved modifying both the core source code and the minified build files. These changes suggest efforts to improve the functionality and control of the spatial audio rendering on the web. Furthermore, the user updated default configurations like the HRTF URL and added default URLs.
spatialjavascriptaudiorenderingspatial-audio
GoogleChromeLabs/web-audio-samples
Jun 2018 - Sep 2022
Web Audio API samples by Chrome Web Audio Team
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:241 reviews, 137 commits, 184 PRs in 4 years 3 months
Contributions summary:Hongchan contributed to the project by adding breadcrumbs and styling to improve the user interface and navigation. They also introduced sound assets, demonstrating an understanding of multimedia integration. Furthermore, they added and revised audio worklet examples, showcasing proficiency in Web Audio API and related technologies. Their work spanned both front-end and potentially back-end aspects of the project, indicating full-stack development.
apiwebmidiapijavascriptaudioworkletaudio-api
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