| 摘要 |
PROBLEM TO BE SOLVED: To suppress reduction of a sound pressure in the case where an object, such as a wall, which causes an air spring exists in proximity to a rear surface of an electrostatic speaker.SOLUTION: An electrostatic speaker 10 includes a vibration film 11 and fixed electrode films 12F and 12R. The fixed electrode films 12F and 12R are each a porous conductor film, which includes a large number of ventilation holes 120, and applied with a driving signal. The vibration film 11 is arranged between the fixed electrode films 12F and 12R. The vibration film 11 includes a large number of ventilation holes 110 formed in a predetermined pattern, first ventilation regions LS1, LS2, LS3, and LS4, second ventilation regions LC1, LC2, LC3, LC4, and LC5, and a plurality of vibration regions ARs partitioned by the ventilation regions. |
