一款负反馈控制耳机的主动降噪特性分析

Analysis on active noise cancellation of a feed-back controlling headset

借助一款主动降噪耳机,测试了它的主动降噪特性。然后依据负反馈控制原理,测试耳机系统的有关功能模块,分析、仿真了该耳机的主动降噪效果,从而验证了耳机降噪的工作原理。

With an active noise cancellation（ ANC） headset,its ANC performance is measured. Then based upon feed-back controlling principle,related function modules are measured,therefore analyzing and simulating are applied for the headset＇s ANC performance. By such steps,the principle of the ANC headset is finally verified.