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Kazuhito Koishida

Principal Scientist Lead at Microsoft

Kazuhito Koishida is a Principal Scientist Lead at Microsoft, based in Redmond, Washington.1 He has been with Microsoft since 2000, initially joining as a Senior Software Development Engineer before becoming a Principal Scientist Lead in March 2010.13

Koishida's expertise lies in signal processing and machine learning, with a focus on audio, speech, computer vision, and sensor data.3 His research areas include developing new algorithms for AR and Wearables, such as audio/speech/IMU/visual processing and recognition.1

Education and Early Career

Koishida received his Ph.D. in Electrical Engineering from the Tokyo Institute of Technology in 1998, with a thesis titled "Low Bit Rate Speech Coding Based on Mel-Generalized Cepstral Analysis".13 He also holds a Master's and Bachelor's degree in Electrical Engineering from the same institution.1

Before joining Microsoft, Koishida worked as a Post Doctoral Researcher at UC Santa Barbara from April 1998 to September 2000.13

Research Contributions

Throughout his career, Koishida has made significant contributions to various areas of audio and speech technology:

  • Audio and voice compression: Developed bitrate/bandwidth scalable codecs, MELP codec at 1.2kbps, and contributed to Windows Media Audio and Voice codec.3
  • Speech enhancement: Worked on audio/visual fusion and bandwidth expansion.3
  • Microphone array processing: Developed beamforming and sound source localization techniques.3
  • Audio/voice detection and recognition: Contributed to keyword spotting and speaker identification technologies.3

Koishida has authored numerous publications and holds several patents in these fields.2 His work has been cited extensively, particularly in areas such as multimodal transfer learning for CNN fusion and text-independent speaker verification.2

Current Role

As a Principal Scientist Lead at Microsoft's Applied Sciences Group in the Experiences + Devices organization, Koishida continues to drive innovation in audio and speech technologies, as well as exploring new frontiers in AR and wearable devices.13

Related Questions

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Kazuhito Koishida
Kazuhito Koishida, photo 1
Kazuhito Koishida, photo 2
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Location

Redmond, Washington, United States