Sound-Separation System using Spherical Microphone Array with Three-Dimensional Directivity—KIKIWAKE 3D: Language Game for Children

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International Journal on Smart Sensing and Intelligent Systems

Professor Subhas Chandra Mukhopadhyay

Exeley Inc. (New York)

Subject: Computational Science & Engineering , Engineering, Electrical & Electronic

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VOLUME 7 , ISSUE 4 (December 2014) > List of articles

Sound-Separation System using Spherical Microphone Array with Three-Dimensional Directivity—KIKIWAKE 3D: Language Game for Children

Takahiro Nakadai * / Tomohiro Nakayama * / Tomoki Taguchi * / Ryohei Egusa * / Miki Namatame *

Keywords : Supporting learning system; signal processing; frequency-band selection, implementation, and evaluation

Citation Information : International Journal on Smart Sensing and Intelligent Systems. Volume 7, Issue 4, Pages 1,908-1,921, DOI: https://doi.org/10.21307/ijssis-2017-739

License : (CC BY-NC-ND 4.0)

Received Date : 15-October-2014 / Accepted: 12-November-2014 / Published Online: 01-December-2014

ARTICLE

ABSTRACT

Mixed sounds can be separated from multiple sound sources using microphone array sensor
and signal processing. We believe that promotion of interest in this technique can lead to significant
future development in science and technology. To investigate this technique, we designed a language
game for children called “KIKIWAKE 3D” that uses a sound-source-separation system to arouse
children’s interest in this technology. However, the microphone array sensor in a previous research
had a limited scope in separating sounds. We developed a spherical microphone array sensor with
three-dimensional directivity designed for this game. In this paper, we report the evaluation of this
microphone array sensor in adapting to this game by separating the sound level and using
questionnaires.

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