Joon-Hyuk CHANG


Efficient Implementation of Statistical Model-Based Voice Activity Detection Using Taylor Series Approximation
Chungsoo LIM Soojeong LEE Jae-Hun CHOI Joon-Hyuk CHANG 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2014/03/01
Vol. E97-A  No. 3  pp. 865-868
Type of Manuscript:  LETTER
Category: Digital Signal Processing
Keyword: 
voice activity detectionTaylor series approximationembedded systems
 Summary | Full Text:PDF(358.8KB)

Improved Speech-Presence Uncertainty Estimation Based on Spectral Gradient for Global Soft Decision-Based Speech Enhancement
Jong-Woong KIM Joon-Hyuk CHANG Sang Won NAM Dong Kook KIM Jong Won SHIN 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2013/10/01
Vol. E96-A  No. 10  pp. 2025-2028
Type of Manuscript:  LETTER
Category: Speech and Hearing
Keyword: 
global soft decisionspeech-presence uncertaintyspectral gradient
 Summary | Full Text:PDF(241.5KB)

Online Sparse Volterra System Identification Using Projections onto Weighted l1 Balls
Tae-Ho JUNG Jung-Hee KIM Joon-Hyuk CHANG Sang Won NAM 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2013/10/01
Vol. E96-A  No. 10  pp. 1980-1983
Type of Manuscript:  Special Section PAPER (Special Section on Sparsity-aware Signal Processing)
Category: 
Keyword: 
adaptive filteringsparse Volterra systemsidentificationprojections
 Summary | Full Text:PDF(982.4KB)

A Statistical Model-Based Speech Enhancement Using Acoustic Noise Classification for Robust Speech Communication
Jae-Hun CHOI Joon-Hyuk CHANG 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/07/01
Vol. E95-B  No. 7  pp. 2513-2516
Type of Manuscript:  LETTER
Category: Multimedia Systems for Communications
Keyword: 
statistical model-based speech enhancementGaussian mixture modelnoise classification
 Summary | Full Text:PDF(78KB)

Improvement of SVM-Based Speech/Music Classification Using Adaptive Kernel Technique
Chungsoo LIM Joon-Hyuk CHANG 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2012/03/01
Vol. E95-D  No. 3  pp. 888-891
Type of Manuscript:  LETTER
Category: Speech and Hearing
Keyword: 
SVMSMVadaptive kernelsigmoid
 Summary | Full Text:PDF(271.7KB)

Speech Enhancement Based on Data-Driven Residual Gain Estimation
Yu Gwang JIN Nam Soo KIM Joon-Hyuk CHANG 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2011/12/01
Vol. E94-D  No. 12  pp. 2537-2540
Type of Manuscript:  LETTER
Category: Speech and Hearing
Keyword: 
speech enhancementnoise reductiondata-driven approachresidual gain estimation
 Summary | Full Text:PDF(173.3KB)

Speech Enhancement Based on Adaptive Noise Power Estimation Using Spectral Difference
Jae-Hun CHOI Joon-Hyuk CHANG Dong Kook KIM Suhyun KIM 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2011/10/01
Vol. E94-A  No. 10  pp. 2031-2034
Type of Manuscript:  LETTER
Category: Speech and Hearing
Keyword: 
noise estimationspectral differencesigmoid
 Summary | Full Text:PDF(292.2KB)

Efficient Speech Reinforcement Based on Low-Bit-Rate Speech Coding Parameters
Jae-Hun CHOI Joon-Hyuk CHANG Seong-Ro LEE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/09/01
Vol. E93-A  No. 9  pp. 1684-1687
Type of Manuscript:  LETTER
Category: Speech and Hearing
Keyword: 
speech reinforcementG.729 annex Bexcitation energySNR recovery
 Summary | Full Text:PDF(209.2KB)

Improved Global Soft Decision Incorporating Second-Order Conditional MAP in Speech Enhancement
Jong-Mo KUM Joon-Hyuk CHANG 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2010/06/01
Vol. E93-D  No. 6  pp. 1652-1655
Type of Manuscript:  LETTER
Category: Speech and Hearing
Keyword: 
speech enhancementglobal soft decisionconditional MAP
 Summary | Full Text:PDF(249.3KB)

Discriminative Weight Training for Support Vector Machine-Based Speech/Music Classification in 3GPP2 SMV Codec
Sang-Kyun KIM Joon-Hyuk CHANG 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/01/01
Vol. E93-A  No. 1  pp. 316-319
Type of Manuscript:  LETTER
Category: Speech and Hearing
Keyword: 
SVMSMVspeech/music classification algorithmdiscriminative weight training
 Summary | Full Text:PDF(129.3KB)

Speech Reinforcement Based on Soft Decision under Far-End Noise Environments
Jae-Hun CHOI Woo-Sang PARK Joon-Hyuk CHANG 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/08/01
Vol. E92-A  No. 8  pp. 2116-2119
Type of Manuscript:  LETTER
Category: Speech and Hearing
Keyword: 
soft decisionSAPspeech reinforcementSNR recoverymasking effectnear-end ambient noise estimation
 Summary | Full Text:PDF(331.4KB)

Efficient Implementation of Voiced/Unvoiced Sounds Classification Based on GMM for SMV Codec
Ji-Hyun SONG Joon-Hyuk CHANG 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/08/01
Vol. E92-A  No. 8  pp. 2120-2123
Type of Manuscript:  LETTER
Category: Speech and Hearing
Keyword: 
selectable mode vocoderGaussian mixture modelvoice activity detection
 Summary | Full Text:PDF(302.6KB)

Acoustic Environment Classification Based on SMV Speech Codec Parameters for Context-Aware Mobile Phone
Kye-Hwan LEE Joon-Hyuk CHANG 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2009/07/01
Vol. E92-D  No. 7  pp. 1491-1495
Type of Manuscript:  LETTER
Category: Speech and Hearing
Keyword: 
acoustic environment classificationGaussian mixture modelselectable mode vocoder
 Summary | Full Text:PDF(194.8KB)

Speech/Music Classification Enhancement for 3GPP2 SMV Codec Based on Support Vector Machine
Sang-Kyun KIM Joon-Hyuk CHANG 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/02/01
Vol. E92-A  No. 2  pp. 630-632
Type of Manuscript:  LETTER
Category: Speech and Hearing
Keyword: 
SVMSMVspeech/music classification algorithm
 Summary | Full Text:PDF(164.3KB)

A Support Vector Machine-Based Gender Identification Using Speech Signal
Kye-Hwan LEE Sang-Ick KANG Deok-Hwan KIM Joon-Hyuk CHANG 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/10/01
Vol. E91-B  No. 10  pp. 3326-3329
Type of Manuscript:  LETTER
Category: Fundamental Theories for Communications
Keyword: 
speech signalgender identificationSVMGMMfundamental frequency
 Summary | Full Text:PDF(169.9KB)

A Support Vector Machine-Based Voice Activity Detection Employing Effective Feature Vectors
Q-Haing JO Yun-Sik PARK Kye-Hwan LEE Joon-Hyuk CHANG 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/06/01
Vol. E91-B  No. 6  pp. 2090-2093
Type of Manuscript:  LETTER
Category: Multimedia Systems for Communications
Keyword: 
voice activity detectionsupport vector machinea posteriori SNRa priori SNRpredicted SNR
 Summary | Full Text:PDF(122.2KB)

Frame Splitting Scheme for Error-Robust Audio Streaming over Packet-Switching Networks
Jong Kyu KIM Jung Su KIM Hwan Sik YUN Joon-Hyuk CHANG Nam Soo KIM 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/02/01
Vol. E91-B  No. 2  pp. 677-680
Type of Manuscript:  LETTER
Category: Multimedia Systems for Communications
Keyword: 
perceptual audio codingaudio streamingframe splittingpacket-switching networks
 Summary | Full Text:PDF(227.2KB)

Speech Enhancement Based on Perceptually Comfortable Residual Noise
Jong Won SHIN Joon-Hyuk CHANG Nam Soo KIM 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/11/01
Vol. E90-B  No. 11  pp. 3323-3326
Type of Manuscript:  LETTER
Category: Multimedia Systems for Communications
Keyword: 
speech enhancementresidual noiseperceptually comfortable noise
 Summary | Full Text:PDF(75.5KB)

Improved Global Soft Decision Using Smoothed Global Likelihood Ratio for Speech Enhancement
Joon-Hyuk CHANG Dong Seok JEONG Nam Soo KIM Sangki KANG 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/08/01
Vol. E90-B  No. 8  pp. 2186-2189
Type of Manuscript:  LETTER
Category: Multimedia Systems for Communications
Keyword: 
global soft decisionSGLRGSAPMOS
 Summary | Full Text:PDF(96.7KB)

A Novel Approach to a Robust a Priori SNR Estimator in Speech Enhancement
Yun-Sik PARK Joon-Hyuk CHANG 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/08/01
Vol. E90-B  No. 8  pp. 2182-2185
Type of Manuscript:  LETTER
Category: Multimedia Systems for Communications
Keyword: 
a priori SNRdecision-directedspeech enhancementsigmoid type
 Summary | Full Text:PDF(181.8KB)

Multiband Vector Quantization Based on Inner Product for Wideband Speech Coding
Joon-Hyuk CHANG Sanjit K. MITRA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2005/11/01
Vol. E88-D  No. 11  pp. 2606-2608
Type of Manuscript:  LETTER
Category: Speech and Hearing
Keyword: 
wideband speech codingVQCELPMLTinner product
 Summary | Full Text:PDF(181.6KB)

A Statistical Model-Based V/UV Decision under Background Noise Environments
Joon-Hyuk CHANG Nam Soo KIM Sanjit K. MITRA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2004/12/01
Vol. E87-D  No. 12  pp. 2885-2887
Type of Manuscript:  LETTER
Category: Speech and Hearing
Keyword: 
V/UV decisionstatistical modelLaplacianGLLR
 Summary | Full Text:PDF(254.2KB)

Distorted Speech Rejection for Automatic Speech Recognition in Wireless Communication
Joon-Hyuk CHANG Nam Soo KIM 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2004/07/01
Vol. E87-D  No. 7  pp. 1978-1981
Type of Manuscript:  LETTER
Category: Speech and Hearing
Keyword: 
pre-rejectionASRwireless communication
 Summary | Full Text:PDF(213.6KB)

Speech Enhancement: New Approaches to Soft Decision
Joon-Hyuk CHANG Nam Soo KIM 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2001/09/01
Vol. E84-D  No. 9  pp. 1231-1240
Type of Manuscript:  PAPER
Category: Speech and Hearing
Keyword: 
speech enhancementglobal soft decisionhang-overpredicted SNRDCT
 Summary | Full Text:PDF(514.1KB)