基于DSP的耳机噪声抵消系统的设计与实现  

Design and Implementation of Adaptive Active Noise Cancellation Headset System Based on DSP

作　　者：陈斌[1] 冯燕[1] 

机构地区：[1]西北工业大学电子信息学院,陕西西安710072

出　　处：《电声技术》2010年第4期79-82,86,共5页Audio Engineering

摘　　要：设计和实现了基于DSP的自适应有源降噪耳机系统。分析了有源降噪耳机系统的原理,基于SEED-DEC6416开发板实现了有源降噪耳机系统的硬件和软件设计,为保证系统的实时性对程序进行优化,降噪耳机系统实现了对实际环境中噪声信号的提取、自适应滤波和噪声抵消。实验结果表明系统,在实际噪声环境中可以对噪声进行抵消,并良好地恢复语音信号,验证了系统设计的可行性和算法的正确性。Design and implement the adaptive active noise cancellation headset system based on DSP is proposed. The principle of active noise cancellation headset system is analyzed, and then the hardware and software of the adaptive active noise cancellation headset system are implemented based on SEED-DEC6416 development board, and the program to ensure real-time processing of the system is optimized. The noise cancellation headset system realizes the extraction, adaptive filtering and noise cancellation of the noise signal The results indicate that the noise can be canceled in the noisy environment and the voice signals can be restored well, and the feasibility of the system and the correctness of algorithm are verified.

关 键 词：DSP 有源降噪 实时性 

分 类 号：TB53[理学—物理]