摘要
建立了会议电视系统自动声学定位模型。讨论了利用传声器阵列估计与会者方位角的问题。分析了时延估计的方法,给出目标方位角、信号带宽、信噪比等因素对定位误差量的影响并提出了减小误差的途径。最后讨论了实验仿真结果,证明了所提出方法的有效性和可行性。
A passive acoustical locating model for the smart conference video system is built. The problem on the speaker tracking by way of estimating time delay of microphone arrays is discussed. The algorithm for the time delay estimation is presented and the azimuth estimation precision is analyzed, The ways for improving estimation precision are discussed, Finally, the simulating results show the presented approach has the characteristics of the effectiveness and feasibility.
出处
《电声技术》
2007年第3期11-13,共3页
Audio Engineering
关键词
会议电视系统
被动声定位
时延估计
三元阵
smart conference video system
passive acoustical location
time estimation
microphone array
