The supra-aural headphone concentrates the sound in the listener’s ears, so the loudspeaker sound is confined to the cavity between the pinna and the headphone casing. It is then directed toward the tympanic membrane through the ear-canal. The high-quality sound requirement of supra-aural headphone on one side and space limitation on the other prompted this research. Similarly, inherent sound leakages from headphone on one side and a need for loud sound on the other also impelled this research. This research proposes headphone design modifications for interaction between sound from the diaphragm’s rear and front side for improved frequency response. The changes attempt to stop the sound from the diaphragm’s rear side to leak to the external surrounding, and it is routed to interact with the sound from the front side of the diaphragm in two distinct ways due to the geometrical/structural modifications of the headphone front cover. Prototypes of three headphones (one traditional and two modified) have been modeled by computer-aided drafting software and fabricated by 3D printing. In parallel, equivalent circuits have been formed for the simulation as per the proposed headphone testing setup. The frequency response measurements of headphones have been done in an anechoic chamber using B&K HATS Type 4128. The simulated and measured responses of headphones demand modification of the equivalent circuit by adding the current-controlled voltage source. The optimum simulated performances of all three headphones with a modified equivalent circuit show an improved agreement with respective measured performances.

上耳式耳机将声音集中在听众的耳朵中，因此扬声器声音被限制在耳廓和耳机外壳之间的空腔中。然后通过耳道将其引向鼓膜。一方面，对上耳式耳机的高质量声音要求，另一方面对空间的限制，促使了这项研究。同样，一方面耳机固有的声音泄漏，另一方面要求大声的声音也推动了这项研究。这项研究提出了对耳机设计的修改，以改善振动膜前后侧声音之间的相互作用，从而改善频率响应。这些更改试图阻止来自振膜后侧的声音泄漏到外部环境，由于耳机前盖的几何/结构变化，它可以通过两种不同的方式与来自膜片正面的声音进行交互。通过计算机辅助绘图软件对三个耳机（一个传统耳机和两个修改耳机）的原型进行了建模，并通过3D打印进行了制作。并行地，根据拟议的耳机测试设置，已经形成了等效电路用于仿真。耳机的频率响应测量是使用B＆K HATS 4128型在消声室内完成的。仿真和测量的耳机响应需要通过添加电流控制电压源来修改等效电路。