Woongjib Choi

Incoming Ph.D. Student at MIT EECS.

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Hello! I am an incoming Ph.D. student in EECS at MIT. I received my B.S. and M.S. in Electrical and Electronic Engineering from Yonsei University (South Korea) in 2024 and 2026, respectively, and worked at DSPAI Lab under Prof. Hong-Goo Kang. My primary research goal is to bridge the gap between classic signal processing and modern deep learning, with interests spanning audio and speech processing, audio compression, and generative models.

My first research experience as an undergraduate at the SRIP Lab involved implementing and analyzing traditional image signal processing algorithms such as denoising, demosaicing, and super-resolution. This interest in combining established algorithms with data-driven approaches has continued throughout my graduate studies.

During my M.S., I focused on neural audio codecs and audio super-resolution. Specifically, I worked on non-blind bandwidth extension using side information for legacy audio codec enhancement, as well as blind audio super-resolution using flow matching, where both approaches are grounded in time-frequency and subband analysis. Currently, my research interests extend to audio tokenization and generative models for audio, with additional experience in multilingual speech processing.


News

Jul 01, 2026 πŸŽ‰ Our team’s papers, β€œUR-BERT” and β€œMoLGE”, were accepted to INTERSPEECH 2026 and COLM 2026, respectively! 🎊
Feb 23, 2026 πŸŽ“ Successfully completed my M.S. in Electrical and Electronic Engineering at Yonsei University!
Jan 16, 2026 πŸŽ‰ My first-author work, β€œUniverSR: Unified and Versatile Audio Super-Resolution via Vocoder-Free Flow Matching”, has been accepted to ICASSP 2026. Excited to present this work in Barcelona! 😊
Sep 22, 2025 🎼 Attending ISMIR 2025 in Daejeon was fascinating opportunity to connect with researchers in the music and audio domains!
Aug 18, 2025 🎀 I presented my first-author paper β€œNeural Spectral Band Generation for Audio Coding”, at INTERSPEECH 2025 in the Netherlands. What a great experience! 😊

Selected Publications

  1. UniverSR: Unified and Versatile Audio Super-Resolution via Vocoder-Free Flow Matching
    Woongjib Choi, Sangmin Lee, Hyungseob Lim, and Hong-Goo Kang
    In IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2026
  2. Neural Spectral Band Generation for Audio Coding
    Woongjib Choi, Byeong Hyeon Kim, Hyungseob Lim, Inseon Jang, and Hong-Goo Kang
    In INTERSPEECH, 2025