Audio, Speech and Language Processing Group at Northwestern Polytechnical University (ASLP@NPU) is affiliated with Shaanxi Provincial Key Laboratory of Speech and Image Information Processing (SAIIP). The ASLP group was founded in the year of 1995. The mission of the ASLP group is to foster interdisciplinary research and education in a broad range of subjects within the disciplines of audio, speech and language processing. Currently, the research scope of the ASLP group includes human-computer speech communciation, speech and audio signal processing, audio-visual processing, multimedia content analysis and retrieval. In the year of 2011, the group consists of three full professors, one associate professor, four adjunct professors and over thirty Ph.D and master students...


   Recent Publications

  • Lei Xie, Yulian Yang, Zhi-Qiang Liu and Wei Feng,On the Effectiveness of Subwords for Lexical Cohesion Based Story Segmentation of Chinese Broadcast News,Information Sciences, accepted, inpint, 2011.
  • Zihan Liu, Lei Xie, Wei Feng, Maximum Lexical Cohesion for Fine-Grained News Story Segmentation, Interspeech2010, Makuhari, Japan, 26-30 September, 2010. (Best Student Paper Award Shortlist)
  • Dongmei Jiang, Ilse Ravyse, Peizhen Liu, Hichem Sahli, Werner Verhelst. Realistic Mouth Animation Based on an Articulatory DBN Model with Constrained Asynchrony, International Conference on Acoustics, Speech and Signal Processing (ICASSP2010), March 14-19, Texas, USA, pp.2478-2481, 2010.
  • Xiaoxuan Wang, Lei Xie, Bin Ma, Eng Siong Chng, Haizhou Li, Phoneme Lattice based TextTiling towards Multilingual Story Segmentation, Interspeech2010, Makuhari, Japan, 26-30 September, 2010.
  • Fu Zhong-Hua, Wang Jhing-Fa, Speech presence probability estimation based on integrated time-frequency minimum tracking for speech enhancement in adverse environments, International Conference on Acoustics, Speech and Signal Processing (ICASSP2010), pp. 4258-4261, 2010.
  • Lei Xie, Zhong-hua Fu, Wei Feng and Yong Luo, Pitch-Density-based Features and an SVM Binary Tree Approach for Multi-Class Audio Classification in Broadcast News, ACM/Springer Multimedia Systems Journal, 17(2):101-112, 2011.

   Where Are We

Xian, the eternal city, records the great changes of the Chinese nation just like a living history book. Called Chang'an in ancient times, Xian is one of the birthplaces of the ancient civilization in the Yellow River Basin area of the country. During Xian's 3,100 year development, 13 dynasties such as Western Zhou (11th century BC - 771 BC), Qin (221 BC - 206 BC), Western Han (206 BC - 24 AD) and Tang (618 - 907) placed their capitals here. So far, Xian enjoys equal fame with Athens, Cairo, and Rome as one of the four major ancient civilization capitals... >> More

NorthwesternPolytechnical University (NPU) is located in ancient capital city of Xi'an. NPU is China's only research-oriented, multi-disciplinary, and international university of science and technology, which simultaneously excels at aeronautics, astronautics, and marine technology. The university emphasizes science and technology, while harmoniously developing the fields of management, humanities, economics, and law. The university is affiliated with the Ministry of Industry and Information Technology... >> More


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