Yusuke HIOKA


An Estimation Method of Sound Source Orientation Using Eigenspace Variation of Spatial Correlation Matrix
Kenta NIWA Yusuke HIOKA Sumitaka SAKAUCHI Ken'ichi FURUYA Yoichi HANEDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2013/09/01
Vol. E96-A  No. 9  pp. 1831-1839
Type of Manuscript:  PAPER
Category: Engineering Acoustics
Keyword: 
Microphone arraysound source orientationreflected soundtransfer functionspatial correlation matrix
 Summary | Full Text:PDF(2MB)

Improving Power Spectra Estimation in 2-Dimensional Areas Using Number of Active Sound Sources
Yusuke HIOKA Ken'ichi FURUYA Yoichi HANEDA Akitoshi KATAOKA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2011/01/01
Vol. E94-A  No. 1  pp. 273-281
Type of Manuscript:  PAPER
Category: Engineering Acoustics
Keyword: 
microphone arraypower spectrum estimationspeech enhancement2-dimensional areaestimating source position
 Summary | Full Text:PDF(3.7MB)

Enhancement of Sound Sources Located within a Particular Area Using a Pair of Small Microphone Arrays
Yusuke HIOKA Kazunori KOBAYASHI Ken'ichi FURUYA Akitoshi KATAOKA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/02/01
Vol. E91-A  No. 2  pp. 561-574
Type of Manuscript:  PAPER
Category: Engineering Acoustics
Keyword: 
microphone arraynoise suppressionspectrum emphasispower spectrum estimationnon-negative least squares method
 Summary | Full Text:PDF(1.5MB)

Tracking of Speaker Direction by Integrated Use of Microphone Pairs in Equilateral-Triangle
Yusuke HIOKA Nozomu HAMADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/03/01
Vol. E88-A  No. 3  pp. 633-641
Type of Manuscript:  Special Section PAPER (Special Section on Adaptive Signal Processing and Its Applications)
Category: 
Keyword: 
microphone arrayspeaker direction trackingharmonic structuresteepest descent methodequilateral-triangular arrangement
 Summary | Full Text:PDF(948.8KB)

Estimation of Azimuth and Elevation DOA Using Microphones Located at Apices of Regular Tetrahedron
Yusuke HIOKA Nozomu HAMADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/08/01
Vol. E87-A  No. 8  pp. 2058-2062
Type of Manuscript:  Special Section LETTER (Special Section on Digital Signal Processing)
Category: Speech/Acoustic Signal Processing
Keyword: 
microphone pairDOA estimationharmonic structureeigenspace analysisregular tetrahedron
 Summary | Full Text:PDF(1.1MB)

DOA Estimation of Speech Signal Using Microphones Located at Vertices of Equilateral Triangle
Yusuke HIOKA Nozomu HAMADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/03/01
Vol. E87-A  No. 3  pp. 559-566
Type of Manuscript:  Special Section PAPER (Special Section on Applications and Implementations of Digital Signal Processing)
Category: Audio/Speech Coding
Keyword: 
microphone arrayDOA estimationmicrophone paireigenspace analysisharmonic structurespatial resolution
 Summary | Full Text:PDF(1.1MB)

Voice Activity Detection with Array Signal Processing in the Wavelet Domain
Yusuke HIOKA Nozomu HAMADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/11/01
Vol. E86-A  No. 11  pp. 2802-2811
Type of Manuscript:  PAPER
Category: Engineering Acoustics
Keyword: 
voice activity detectionmicrophone arraywavelet packet analysiseigenspace analysisspeech features
 Summary | Full Text:PDF(1.7MB)