Dr Yusuke Hioka

BE, ME, PhD (Keio University, Japan), PGCertTertTchg(Canterbury), SMIEEE


I received my B.E., M.E., and Ph.D. degrees in engineering in 2000, 2002, and 2005 from Keio University, Yokohama, Japan. From 2005 to 2012, I was with the NTT Cyber Space Laboratories (now NTT Media Intelligence Laboratories), Nippon Telegraph and Telephone Corporation (NTT). From 2010 to 2011, I was also a visiting researcher at Victoria University of Wellington. In 2013 I came back to New Zealand and was appointed as a Lecturer at the University of Canterbury, Christchurch. Then in 2014, I joined the Department of Mechanical Engineering as a Senior Lecturer in Mechatronics where I mainly teach electronics and computer engineering courses for the Mechatronics programme. I am also the Deputy Director of the Acoustics Research Centre at the Department of Mechanical Engineering.

Research | Current

Since I was studying towards my PhD I specialised in audio and acoustic signal processing particularly focusing on microphone arrays which is a technology that enables us to emphasise sound arriving from particular directions/locations.

After I received my degree I worked in industry for nearly 8 years where I had many opportunities to utilise my expertise in developing commercial products as well as growing my academic career. Because of this industrial experience the majority of my research focuses on problems in the real world. I always try to invent technologies that are practically effective and feasible but are also supported by theoretical principles. Some of my inventions have been adopted in commercial products which have been attracting many users/customers' interests.

Besides audio and acoustic signal processing, recently I am also interested in wider fields related to sound such as speech, audiology, psychoacoustics and linguistics. 

Teaching | Current

MECHENG201: Electronics and Computing for Mechanical Engineers (2017)

MECHENG370: Analogue Circuit Design (Course Coordinator; 2015-)

MECHENG313: Real-time Software Design (2014-)

MECHENG705: Mechatronics Systems (2015-)

MECHENG726: Acoustics for Engineers (2017-)

Postgraduate supervision

M.E. Mr Francis Del Prado - From March 2015 to February 2016.
PhD Mr Khairul Affendy Md Nor - From March 2016 onwards. (Co-supervisor)
PhD Mr Benjamin Yen - From July 2016 onwards.
PhD Mr Nicholas Eng - From July 2018 orwards.


AUEA Emerging Researcher Award - 2016


Mechatronics Course Advisor (2015-)

Deputy Director, Acoustics Research Centre (2017-)

Faculty Research Committee Member (2016-2018)

Areas of expertise

  • Array signal processing
  • Audio/acoustic/speech signal processing
  • Room acoustics
  • Psychology of hearing

Member of the Acoustics Research Centre: http://www.acoustics.auckland.ac.nz/

Committees/Professional groups/Services

  • Senior member of IEEE.
  • Commitee member of IEEE NZ Signal Processing / Information Theory Chapter
    • 2015: Vice Chair
    • 2016 -: Chair
  • Member of IEICE (Institute of Electronics, Information and Communication Engineers).
  • Member of ASJ (Acoustical Society of Japan).

Selected publications and creative works (Research Outputs)

  • Niwa, K., Hioka, Y., & Kobayashi, K. (2019). Microphone array source enhancement using subtractive PSD estimation model. APPLIED ACOUSTICS, 143, 239-249. 10.1016/j.apacoust.2018.07.007
  • Koizumi, Y., Niwa, K., Hioka, Y., Kobayashi, K., & Haneda, Y. (2018). DNN-Based Source Enhancement to Increase Objective Sound Quality Assessment Score. IEEE/ACM Transactions on Audio, Speech, and Language Processing, 26 (10), 1780-1792. 10.1109/TASLP.2018.2842156
    URL: http://hdl.handle.net/2292/42550
  • Yen, B., Hioka, Y., & Mace, B. (2018). IMPROVING POWER SPECTRAL DENSITY ESTIMATION OF UNMANNED AERIAL VEHICLE ROTOR NOISE BY LEARNING FROM NON-ACOUSTIC INFORMATION. Paper presented at 16th International Workshop on Acoustic Signal Enhancement (IWAENC), Tokyo, JAPAN. 17 September - 20 September 2018. 2018 16TH INTERNATIONAL WORKSHOP ON ACOUSTIC SIGNAL ENHANCEMENT (IWAENC). (pp. 5).
    URL: http://hdl.handle.net/2292/41575
    Other University of Auckland co-authors: Benjamin Yen, Brian Mace
  • Hioka, Y., Drage, R., Boag, T., & Everall, E. (2018). DIRECTION OF ARRIVAL ESTIMATION USING A CIRCULARLY MOVING MICROPHONE. Paper presented at 16th International Workshop on Acoustic Signal Enhancement (IWAENC), Tokyo, JAPAN. 17 September - 20 September 2018. 2018 16TH INTERNATIONAL WORKSHOP ON ACOUSTIC SIGNAL ENHANCEMENT (IWAENC). (pp. 5).
    URL: http://hdl.handle.net/2292/41423
  • Niwa, K., Hioka, Y., & Uematsu, H. (2018). Efficient audio rendering using angular region-wise source enhancement for 360° video. IEEE Transactions on Multimedia, 1-1. 10.1109/TMM.2018.2829187
    URL: http://hdl.handle.net/2292/42413
  • Hioka, Y., Dodd, G., Kingan, M., & Schmid, G. (2018). An active learning coursework for engineering acoustics course. 25th International Congress on Sound and Vibration 2018, ICSV 2018: Hiroshima Calling.
    URL: http://hdl.handle.net/2292/41403
    Other University of Auckland co-authors: George Dodd, Michael Kingan, Gian Schmid
  • Koizumi, Y., Harada, N., Haneda, Y., Hioka, Y., & Kobayashi, K. (2018). END-TO-END SOUND SOURCE ENHANCEMENT USING DEEP NEURAL NETWORK IN THE MODIFIED DISCRETE COSINE TRANSFORM DOMAIN. Paper presented at IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Calgary, CANADA. 15 April - 20 April 2018. 2018 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING (ICASSP). (pp. 5).
  • Del Prado, F., Hioka, Y., & Watson, C. (2018). The effect of speech enhancement in voice adaptation when building synthetic voices. Acoustical Science and Technology, 39 (2), 150-153. 10.1250/ast.39.150
    URL: http://hdl.handle.net/2292/41325
    Other University of Auckland co-authors: Catherine Watson


Contact details

Office hours

By appointment only

Primary office location

Level 7, Room 714
New Zealand

Social links

Web links