Experience

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  Tencent Cloud

  • Beijing, China

  • Senior Member Research Staff

    • Oct 2021 - Present
    • Beijing, China

    Research lead for media intelligence in Tencent Meeting

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  Tencent

  • Research Lead

    • Nov 2017 - Present

    Research Lead for Tencent TEG info security Beijing Group

  • Senior Staff Researcher

    • Oct 2016 - Present

    1. Robust Large Vocabulary Speech recognition for "lack of resource" language and web channels for all Tencent product, including Wechat, QQ(minority languages and strong accent);2. Speaker and language verification & identification;3. Fuzzy keyword spotting&wakeup algorithms and Query by Example related STD (Spoken terms detection) tasks for "lack of resource" language4. Audo Finger print search

  • Research Expert

    • Nov 2018 - Oct 2021

    Focus ASR, KWS, OCR tech for low resource languages

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  Dolby Laboratories

  • United States
  • Computers and Electronics Manufacturing
  • 700 & Above Employee

  • Staff Researcher

    • Nov 2014 - Oct 2016

    1. Robust, far voice C-D-RNN based speech recognition by both microphone array optimization and sophisticated audio scene analysis (Lead member)2. Fuzzy keyword spotting & rendering & playback using spatial ASR (Lead member)3. Spatial sound-field resilient transmission algorithm design (Lead member)4. In service morning VOIP performance (Lead member)5. P.800, P.835, P.1131 Subjective listening test design and implementation

  • Senior Reserach Engineer

    • Jul 2011 - Nov 2014

    1. Frontend speech processing algorithms for spatial and mono VoIP and recognition in Dolby Voice, incl VAD, NS, AEC, De-reverb, AGC, DRC, Limiter, etc2. Advanced objective performance metric design for above speech frontend algorithms in Dolby Voice; (Lead member)3. Voice codec, particularly algorithm design for packet loss concealment and forward error correction algorithms in codecs’ network resiliency; (Lead member)4. In service monitoring VoIP network performance for alarms and diagnosis using machine intelligence; (Key member)5. Subjective listening test and results analysis (MUSHRA, ITU.P.XXX, BS1116, non-parametrical test etc), benchmarking existing state-of-art frontend system in commercial product;

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  Chinese Academy of Sciences

  • Assistant Researcher

    • Sep 2009 - Jun 2011

    1. Mutimedia information retrieval especially query by humming, music classifi-cation and audio fingerprint search;2. Speech signal analysis & process & recognition;3. Computer aided language learning which designs intelligent systems that can better simulate teachers in understanding the...