Speech and Audio Signal Processing Lab (SASPL)


Lab Name and Affiliation

Speech and Audio Signal Processing Lab (SASPL)

Beijing University of Technology

Lab Director (or Principal Investigator)

Professor Chang-chun Bao, received the B.S., degree in Telecommunication Engineering from Chang Chun Institute of Posts and Telecommunications, M.S., and Ph. D degrees in Communication and Electronic System from JiLin University of Technology in 1987, 1992 and 1995, respectively.
From August of 1992 to June of 1993, he was a visiting scholar in the department of Electrical Engineering, Tsinghua University. From December of 1995 to November of 1997, he was a Postdoctoral Research Fellow and an Associate Professor in the School of Communication Engineering, Xidian University. He joined Beijing University of Technology as an Associate Professor in November of 1997, and was promoted to a Professor from the July of 1999 in the School of Electronic Information and Control Engineering. From July to September in 1998, he was a senior researcher in Digital System Technology Lab, Radio Products Research Group, Land Mobile Products Sector Motorola, Florida, USA. From March to August in 2004, he was a visiting professor at the University of Wollongong. His research interests are in the areas of speech & audio signal processing, speech coding, speech enhancement, speech transcoding, audio coding, audio enhancement, bandwidth extending for speech and audio signals and 3D audio signal processing. He has published the book Principles of Digital Speech Coding (Xian, China: Xidian University Press, 2007). He is the author or co-author of over 210 papers in journals and conferences and holds 9 patents. He was ever an Associate Editor for the Journal on Communications, and currently an Editor for Signal Processing and an Editor for Journal of Data Acquisition & Processing all in Chinese.
Prof. Bao is a Board and Senior Member of Chinese Institute of Electronics (CIE), a Board member of the Acoustical Society of China (ASC), a Board Member of Signal Processing Academy of CIE, a senior member of IEEE Signal Processing Society (IEEE SPS), a member of International Speech Communication Association (ISCA)AVice-Chairman of APSIPA SLA TC and Vice-Chairman of National Conference on Man-Machine Speech Communication-Standing Committee in China.

Lab Introduction

SASPL was founded in 1998 and current research works are focused on:

- Speech Coding (Narrow-band, wide-band and super wide-band)
- Speech Enhancement (narrow-band and wide-band)
- Audio Enhancement (noise reduction and bandwidth extension)
- Audio Coding (scalable and unified)
- Speech Transcoding
- 3D Audio Signal Processing and Coding
- Audio classification and retrieval (individual instrument)
- speaker segmentation and clustering

Lab Contact E-mail