足立研セミナー: Distance Distinguishing Microphone Array for Hands-free Communication
Dr Yusuke Hioka（University of Canterbury）
- 2013年10月30日（水） 14:45～16:15
- 創想館2階 セミナールーム3 （14-203）
Speech (or could be any sound source) enhancement is an important subject for hands-free communication systems. This is because in general microphones are tuned to be quite sensitive to pick up speaker’s voice at proper volume, which causes picking up various interfering noises. In this talk the problems in conventional speech enhancement methods are briefly discussed from the viewpoint of using a hands-free communication system in a public space. Then two novel microphone array technologies are introduced; they can separate sounds whose sources are located in the same direction but at different distance from the microphone array.
In the last part of the talk, a few recent product developments based on the research inventions are also introduced. The talk also includes brief introduction of the presenter’s background and his future research plan.
Yusuke Hioka is a Lecturer at the Department of Electrical and Computer Engineering, University of Canterbury in New Zealand. Before he came to New Zealand, he worked at NTT Laboratories in Tokyo Japan for nearly 8 years where he was mainly engaged in the research and development of audio/acoustic signal processing algorithm for voice conference systems. Most of the topics introduced in this seminar would be related the outcomes of his research at NTT.
Yusuke received his BE, ME, and PhD in Engineering from Keio University, Japan in 2000, 2002, and 2005 respectively. While he was at NTT, he was also a visiting researcher at Victoria University of Wellington in 2011. His major research interests are audio/acoustic signal processing (especially microphone arrays) and room acoustics. He is a member of the IEEE (senior member), IEICE and ASJ.
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