Real-time Sound Signal Acquisition based on Robot Auditory System

摘要：

Signal acquisition based on multiple sensors is widely used in many applications, especially in robot with binaural auditory system. This paper provides one recording procedure with dual-caching and multithread technologies for unlimited time and synchronized sound signal collecting. Besides, in order to solve time delay in multiple recording, timer must be taken in system procedure. Furthermore, use normalized method to handle raw PCM (Pulse Code Modulation) before transmitted to MATLAB;at last, amount of signal data fragment without sound signal will be cut with dual-threshold endpoint detection method. Through experiments, signal segment containing valid sound data can be well extracted, in a large extent which can optimize the redundant data.

关键词： robot auditory system signal acquisition dual-caching multi-thread signal pre-processing

作者: Tao Chen Minglu Zhang

作者单位: Institute of Mechanical Engineering Hebei University of Technology Tianjin,China

会议类型: 国际会议

会议名称: The 2nd IEEE International Conference on Advanced Computer Control(第二届先进计算机控制国际会议 ICACC 2010)

会议地点: 沈阳

会议语种:英文

页码: 561-564

在线出版日期: 2010-03-27（万方平台首次上网日期，不代表论文的发表时间）