掩蔽声系统的研究与开发

The Research and Development of Masking Sound System

针对综合办公室的敞开式布局，使相邻工作单元之间存在着相互干扰和谈话保密性差等问题，依据声掩蔽效应理论和产生伪随机信号的递椎理论，提出了利用单片机和微电子技术开发新的掩蔽声源及其系统的方法．结果表明，该掩蔽声系统可消除噪声干扰，达到语音保密的目的．

In the wild used in open plan offices, due to itS structure, there are many disadvantages, such as the distractions,of intruding conversation, noise and poor speech privacy. According to sound masking theory and recursion theory of pseudorandom signal, we have created a new way to develop masking sound source and its system, which takes advantage of microcontroller and micro-electionic technology. The results have showed that the system can eliminate the noise and get a good speech privacy.