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P.I. profile

Julián Villegas

Associate Professor

Computer Arts Lab.

Phone: [+81] (242) 37 2608

University of Aizu

Fax: [+81](242)37-2772



Japan, 965–8580



  • Ph.D. in Computer Science and Engineering, University of Aizu. Dissertation:
    “Psychoacoustic Roughness Applications in Music: Automatic Retuning and Binaural Perception.” Japan, 2010.
  • M.Sc. Computer Science and Engineering, University of Aizu. Master thesis:
    “Local Consonance Maximization in Realtime.” Japan, 2006.
  • B.S. Electronic Engineering, University of Valle. Graduation project:
    “A Distributed Genetic Algorithm for Solving a Time-Tabling Problem.” Colombia, 2001.

Research Experience



Supervisor: Martin Cooke

Language and Speech Lab., University of the Basque Country

The purpose of the EU-funded lista project (the Listening Talker) is to develop the scientific foundations needed to enable the next generation of spoken output technologies. lista will target all forms of generated speech by observing how listeners modify their production patterns in realistic environments that are characterized by noise and natural, rapid interactions.

Research Associate


Supervisor: Jun Yamadera, Michael Cohen

Eyes, JAPAN & University of Aizu

Implementation of vehicular location-aware augmented reality and spatial audio. (Sponsored by the Fukushima Technology Centre).

Guest Researcher


Supervisor: William Martens

CIRMMT–McGill University

Collaborative research on musical dissonance, roughness, spatial audio, and preference.

External Grants


Method for improvement of pitch and better singing experience

Kawai foundation for Sound and Technology & Music


Saund: Simulation of auditory near-field distance

Grant-in-Aid for Scientific Research


Study and development of smart supermarket by using visible light communication (VLC) and smartphone technologies

Grant-in-Aid for Scientific Research


Perceptual tests for next generation of speech codec for mobile phones (3GPP SA4 EVS codec)

Danish Electronics Light & Acoustics


Teaching Experience

  • (Graduate) Instructor, Spatial Hearing and Virtual 3D Sound, University of Aizu
  • (Graduate) Instructor, Music Technologies, University of Aizu
  • (Graduate) Co-instructor, Introduction to Sound and Audio, University of Aizu
  • (Undergrad.) Instructor, Sound and Audio Processing, University of Aizu
  • (Undergrad.) Instructor, Digital music technologies SCCP (Student Cooperative Class Project). (Japanese and English)
  • (Undergrad.) Co-instructor, Human Interfaces and Virtual Reality, University of Aizu
  • (Undergrad.) Co-instructor, Intro. to Software Engineering exercises, University of Aizu
  • (Undergrad.) Instructor, Computer Graphics Exercises, University of Aizu (2013–2015)

Work Experience

Colombia National Productivity Center (CNPC)

Cali, Colombia

IT Manager


Research and development, web-based application development coordinator, marketing and promotion.

Honors and Awards

  • Aizu IT Forum Encouragement Prize presented to Wataru Sanuki for “Machi-Beacon” App. Supervised by Julián Villegas and M. Cohen (2014).
  • Best Paper Prize (Student Section). B. Ryskeldiev, Julián Villegas, and M. Cohen. Exploring virtual sound environments with mobile devices. Tohoku Section Joint Conv. of Institutes of Electrical and Information Engineers (2013)
  • Rotary Yoneyama Commemorative Foundation Scholarship (2008–2010)
  • Third Prize literary contest Commemorating Colombia–Japan friendship (2009)
  • Prize for Outstanding Work. First University of Aizu Digital Photo Exhibition (2007)
  • President’s Award, University of Aizu (2006)
  • jasso. Self-supported overseas student encouragement scholarship (2006)
  • Colciencias (Colombia) Young Researcher Fellowship. Research project “Impacts of using it in Industrial Productivity” (2002 – 2003)
  • ciccaots Scholarship ‘Integrated Network Management’ (2002)
  • Travel grant for Genetic and Evolutionary Computation Conference, Las Vegas (USA) (2000)
  • Colombian Army Reserve Corps Lieutenant (Infantry) (1993)

Language skills

  • Fluent in Spanish and English; conversational Japanese.

Professional Interests

  • Speech intelligibility, interdisciplinary research on music and sound, psychoacoustics, experimental psychology, real-time programming, visual and aural illusions, binaural audio, etc.

Community and Industry service

  • President of the Support Association for International Students of the University of Aizu (saisua), 2016–Present.
  • Ad hoc referee for
    • Journal of Virtual Reality and Broadcasting
    • Virtual Reality Journal
    • IEEE Systems, Man, and Cybernetics Magazine
    • International Pure data convention
    • International Conference on Design & Emotion
    • IEEE Virtual Reality Int. Conference
  • Conference Organizing experience at:
    • Acoustical Society of Japan (ASJ) 2015 Fall Meeting – Local Organizing Committee, Aizu-Wakamatsu (2014–2015)
    • Fourteenth International Symposium on Spatial Media, Aizu-Wakamatsu (2013–2014)
    • The 5th International Workshop on Speech in Noise: Intelligibility and Quality. Vitoria, Spain (2013).

Professional Affiliations

  • Senior Member of the IEEE
  • Member of the Acoustical Society of America
  • Member of the Acoustical Society of Japan
  • Member of the Audio Engineering Society


  • “Indoor localization system using near-ultrasound signals,” Julián Villegas and Anh Pham. Patent number 2017180, Japan, 2017. (Applied)
  • “Sound spatialization by equalizing filters and delay adjustments,” Julián Villegas. Patent number 2015247, Japan, 2016. (Applied)

Publications summary

  • 10 journal articles
  • 3 book chapters
  • more than 40 international peer-reviewed conference articles
  • 8 invited talks
  • more than 30 works (non-refereed articles, original music, software, etc.)

A complete list of publications with abstracts is available at http://onkyo.u-aizu.ac.jp/index.php/publications/

February 28, 2018