摘要
在对2款耳罩式耳机进行频响曲线测试时,发现这2款耳机在频响曲线的低频和中频共同存在2处异常共振。针对这2处异常共振,通过测试、对比耳机在不同条件下的频响曲线和对耳机进行理论分析、线路图仿真,得出和验证了这2处异常共振分别由皮套与耳机结构体的振动和后腔壁的板共振引起,并给出了抑制共振的方法。
When measuring the SPL curves of two circumaural headhones, abnormal resonances are observed at bass and midrange. By comparing measurement and simulation of the frequency response in different conditions, two kinds of resonant are found and validated. Finally, the methods of minimizing the abnormal resonances are provided.
出处
《电声技术》
2017年第4期35-40,共6页
Audio Engineering
关键词
耳罩式耳机
频响曲线测试
异常共振
仿真计算
circumaural headphones
measurements of SPL curves
abnormal resonances
simulation and calculation
