| Paper: | SAM-L2.5 | ||
| Session: | Microphone Array Processing | ||
| Time: | Wednesday, May 17, 17:50 - 18:10 | ||
| Presentation: | Lecture | ||
| Topic: | Sensor Array and Multichannel Signal Processing: Source localization, separation, classification, and tracking | ||
| Title: | Dual-Microphone Source Location Method in 2-D Space | ||
| Authors: | Weiwei Cui, Zhigang Cao, Tsinghua University, China; Jianqiang Wei, Panasonic R&D Center (China) Co., Ltd., China | ||
| Abstract: | Array based source location attracts a growing interest nowadays, which is frequently used in videoconference, hearing aids and hands free telephone systems to detect a speaker's position. Time delay estimation (TDE) based dual-step source location is assumed to be classical method in this field. Recently, a new technique is developed based on interaural level difference (ILD) method, which determines the source position by the energy ratio from microphone pairs. However, all these localization techniques need at least three sensors to obtain a 2D source location. In this work, we combine the former two techniques, i.e., ILD and TDE based techniques, to present a novel localization approach by an array of only two microphones, and further provide its closed form solution. Our final simulation confirms that such method, which is thought to be more suitable for the equipments with small size, can achieve a good result under normal conditions. | ||
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