ヘッドホン振動板の振動特性に関する基礎研究

抄録

In recent years, audio products are increasing in demand with the development of music culture. Generally equivalent circuits have been used in the design and development of earphones and headphones. However, in the development and evaluation using the equivalent circuit, the expression of the vibration characteristics of the diaphragm is generally limited to one-degree-of-freedom system, and the influence of the so-called divided vibration of the diaphragm due to the higher order vibration modes, which may appear in the high frequency band, cannot be expressed. In this research, numerical results on natural vibration modes and frequency responses of a headphone diaphragm are presented. Results of actual diaphragm model are compared and discussed with those of simplified models.