Joon-Hyuk Chang
Fulltime Instructor
Digital Signal Processing Laboratory
School of Electronic and Electrical Engineering
Inha University
E-mail : changjh (at) inha.ac.kr
Tel : 032-860-7423
Principal Career
Research Scientist (2005)
Systems Technology Division
Korea Institute of Science and Technology (KIST)
Postdoctoral Fellow, Electrical and Computer Engineering (2004~2005)
University of California, Santa Barbara (UCSB), CA, USA
Ph. D in Electrical and Computer Engineering (2004)
Seoul National University (SNU), Seoul, Korea
Chief Engineer (2000~2005)
Netdus Corporation
Research Area Includes
Speech Coding
such as CELP, Signal Modification and Wideband Speech Coding
Robust Speech Recognition
such as Feature Enhancement, Mobile Channel Estimation
Audio Coding
such as MPEG4-AAC, MP3, FFE
Adaptive Filter
such as Adaptive Lattice Notch Filter, Echo Canceller
Noisy Speech Enhancement
such as Soft Decision, Kalman Filter, Statistical Models
Publications
(International Journal)
a. S. –U. Ryu, J. –H. Chang, K. Rose, “Sinusoidal modeling for high frequency regeneration in perceptual
audio coding,” submitted to IEEE Trans. Speech and Audio Processing, 2006.
b. J. –H. Chang, "Residual echo suppression using MMSE estimator,”
submitted to IEE Electronics Letters, 2006.
1. J. –H. Chang, S. Gazor, N. S. Kim and S. K. Mitra, "Multiple statistical models for soft decision
in noisy speech enhancement,” accepted for publication in Pattern Recognition, 2006.
2. J. W. Shin, J. –H. Chang, and N. S. Kim, “A family of distribution for voice activity detection,”
accepted for publication in Pattern Recognition Letters, 2006.
3. J. –H. Chang, N. S. Kim and S. K. Mitra, "Voice activity detection based on multiple statistical models",
IEEE Trans. Signal Processing, Vol. 56, No. 6, pp. 1965-1976, June, 2006.
4. J. –H. Chang and N. S. Kim, “A new structural approach in system identification with generalized analysis-by-synthesis
for Robust Speech Coding”, IEEE Trans. Speech and Audio Processing, Vol. 14, No. 3, pp. 747-751, May 2006
5. J. –H. Chang, “Perceptual weighting filter for robust speech modification”
Signal Processing, vol. 86, Issue 5, pp. 1089-1093, May 2006
6. J. –H. Chang and S. K. Mitra, “Multiband vector quantization based on inner product for wideband speech coding ”,
IEICE Trans. Info. And Syst. Vol. E88-D, No. 11, Nov. 2005.
7. J. –H. Chang, “Warped discrete cosine transform-based noisy speech enhancement,”
IEEE Trans. Circuit and Systems, Vol. 52, Issue 9, pp. 535-539, Sept. 2005.
8. J. –H. Chang, J. W. Shin, N. S. Kim, S. K. Mitra “Image probability distribution based on generalized
gamma function”, IEEE Signal Processing Letters, Vol. 12, Issue 4, pp. 325-328, Apr. 2005.
9. J. –H. Chang, N. S. Kim and S. K. Mitra, “Pitch estimation of speech signal based on adaptive
lattice notch filter,” Signal Processing, Vol. 35, Issue 3, pp. 637-641, Mar, 2005.
10. J. W. Shin, J. –H. Chang, and N. S. Kim “Statistical modeling of speech signal based on
generalized gamma distribution”, IEEE Signal Processing Letters, Vol. 12, Issue 3, pp. 258-261, Mar, 2005
11. J. –H. Chang, N. S. Kim and S. K. Mitra, “A statistical model-based V/UV decision under
noise environments”, IEICE Trans. Syst. And Info. Vol. E87-D, No. 12, pp. 2885-2887, Dec. 2004
12. J. –H. Chang, J. W. Shin, and N. S. Kim “Voice activity detection employing generalized
Gaussian distribution,” IEE Electronics Letters, pp. 1561-1563, Vol. 40, Issue 24, Nov. 2004
13. J. –H. Chang and N. S. Kim, ‘’Distorted speech rejection for automatic speech recognition
in wireless communication”, IEICE Trans. Inf. And Syst., Vol. E87-D, No. 7, pp. 1978-1981, July. 2004.
14. N. S Kim and J. –H. Chang, ‘’Signal modification for robust speech coding”,
IEEE Trans Speech and Audio Processing, Vol. 1, No. 12, pp. 9-18, Jan. 2004
15. J. –H. Chang and N. S. Kim, “Voice activity detection based on complex Laplacian
model” IEE Electronics Letters, Vo. 39, No.7, pp. 632-634, April 2003.
16. N. S. Kim and J. –H. Chang, "Preprocessor for low bit-rate speech coding",
IEEE Signal Processing Letters, Vol. 9, Issue 10, pp. 328-331, Oct, 2002.
17. J. –H. Chang and N. S. Kim, "Speech enhancement : new approaches to soft decision",
IEICE Trans. Inf. and Syst., Vol E84-D, pp. 1231-1240, Sep. 2001.
18. N. S. Kim and J. –H. Chang, "Spectral enhancement based on global soft decision",
IEEE Signal Processing Letters, Vol 7, No. 5, pp. 108-110, May 2000.
(학진등재저널)
1. J. -H. Chang, and N. S. Kim, "다중통계모델을 이용한 음성향상기법",
Telecommunication Review, 제16권, 제5호, Oct, 2006.
2. J. -H. Chang, and N. S. Kim, "이산여현변환에 기반한 음성향상기법에 대한 연구",
Telecommunication Review, 제15권, 제3호, pp. 536-547, June, 2005.
3. J. -H. Chang, D. K. Kim, N. S. Kim, "음성검출기의 설계에 있어 새로운 통계모델과 접근방법",
Telecommunication Review, 제15권, 제1호, pp. 201-217, Feb, 2005.
4. D. K. Kim, J. –H. Chang, and N. S. Kim, "음성인식을 위한 변환공간모델에 근거한 순차적응기법",
한국음성과학회지, 제11권, 제4호, pp. 75-88, Dec. 2004.
5. J. -H. Chang and N. S. Kim, "CDMA이동통신환경에서의 음성인식을 위한 왜곡음성신호거부방법",
한국음향학회지, 제23권 제7호, pp. 514-520, Nov. 2004.
(International Conference)
1. S. –U. Ryu, J. –H. Chang, K. Rose, “Effective high frequency regeneration based on sinusoidal modeling for MPEG-4 HE-AAC
Proc. IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, pp. 211 - 214, Oct. 2005.
2. J. –H. Chang, J. W. Shin, S. Y. Lee and N. S. Kim, " A new structural preprocessor for low-bit rate speech coding",
Proc. Eurospeech, pp. 2829-2832, Sept. 2005.
3. J. W. Shin, J. –H. Chang, H. S. Yun and N. S. Kim, " Voice activity detection based on generalized gamma distribution",
Proc. IEEE International Conference Acoust, Speech, Signal Processing (ICASSP), Vol. 1, pp. 781-784, March 2005.
4. J. –H. Chang, S. Y. Lee, and N. S. Kim, " Inner product-based multi band vector quantization for wideband speech coding at 16kbps ",
Proc. Intl. Conf. Spoken Language Proc. (ICSLP), Vol. 4, pp. 2653-2656, Oct. 2004.
5. J. W. Shin, J. –H. Chang, N. S. Kim “Speech probability distribution based on generalized gamma distribution,”
Proc. Intl Conf. Spoken Language Proc. (ICSLP), Vol. 3, pp. 2477-2480, Oct. 2004.
6. J. –H. Chang, J. –W. Shin, and N. S. Kim, “Likelihood ratio test with complex Laplacian model for voice activity detection,
Proc. Eurospeech, 2003, Swiss, Sept. 2003,
7. J. –H. Chang, D. J. Seo, Y. J. Kim and N. S. Kim, “Pre-rejection of distorted speech for speech recognition in wireless communication channel
,” Proc. IEEE Vehicular Technology Conference, Jeju, Korea, Apr., 2003.
8. J. –H. Chang and N. S. Kim “Speech enhancement using warped discrete cosine transform”,
Proc. IEEE Workshop on Speech Coding, Tsukuba, Japan, Oct. 2002
9. N. S. Kim and J. –H. Chang, “Generalized analysis-by-synthesis based on system identification
”, Proc. IEEE Int. Conf. Acoustics, Speech, Signal Processing (ICASSP), Orlando, USA, May, 2002.
10. J. –H. Chang and N. S. Kim, “Speech enhancement : new approaches to soft decision
,” Proc. Intl. Conf. On Spoken Language Processing (ICSLP), Beijing, China, pp. 1133-1136, Oct. 2000.
11. J. –H. Chang and N. S. Kim, ‘’Speech enhancement based on global soft decision
”, Proc. Intl. Conf. On Speech Processing (ICSP), Seoul, Korea, pp.429-432, Aug. 1999.
(Patent)
1. 대한민국특허, ‘’통계적모델에 기초한 유성음/무성음 판별장치 및 그 방법,” 등록/공고번호 : 053261, 2005. 11. 15
2. 대한민국특허, “복소수 라플라시안 통계모델을 이용한 음성검출기 및 음성검출방법”, 등록/공고번호 : 0513175, 2005. 08. 31
Honor
Referee for IEEE Transaction Audio, Speech and Language Processing 2006, May
Referee for IEEE Communication Letters 2006, May
Referee for Signal Processing 2006, April.
Referee for IEEE Signal Processing Letters 2006, Feb
Referee for IEEE Transaction Speech and Audio Processing 2006, Jan
Referee for IEEE Transaction Speech and Audio Processing 2005, Nov
Referee for IEEE Transaction Speech and Audio Processing 2004, Sept
Referee for Signal Processing 2005
Referee for IEEE Transaction Speech and Audio Processing 2005, Jan
Referee for IEEE Transaction Speech and Audio Processing 2005, Feb
Referee for IEEE Transaction Speech and Audio Processing 2005, May
Won a Splendor prize in the 6th Samsung Humantech Paper Prize in 2000.
한국산업공단 혁신클러스터 아이디어 공모전 금상 2006
Projects Experiences
1. 98. 9/~99.8, SAIT
Development of Interference Noise Elimination Algorithm, SAIT.
2. 98. 9/01.8, KOSEF
Development of Speech Enhancement Algorithm
3. 99.9/00.8, SAIT
Development of Wideband Speech Coding
4. 2002. 4~2005.2, ETRI
Development of Preprocessing for Wideband Speech Coding
5. 2006.3~2007.2, IITA (KIST)
Development of Sound Classification for Disabled Person
6. 2006.3~2007.2, IITA(ETRI, KIST)
A Study on Sound Meta Data for Life-Log System
Favoirtes Sites
Go >>
My photo album
Go >>