| 摘要 |
PURPOSE: A resonance tube structure for multi-channel headphone is provided to reproduce natural and clear sound by adjustment and optimization of the resonance tube length. CONSTITUTION: A resonance tube structure for the multichannel headphone(100) comprises a front resonance tube(112), a backward resonance tube(122), and a center resonance tube(132). The resonance tubes are altogether made of the shell-and-tube type. The front resonance tube is connected to the front speaker(111). The acoustic reproduced through the front chamber formed inside the front resonance tube is delivered towards the ear of the celadon porcelain. One end of the backward resonance tube is connected to the rear loudspeaker(121). The other end of the backward resonance tube is connected to the front chamber of the front resonance tube. The backward resonance tube is the acoustic reproduced from the rear loudspeaker resonant. One end of the center resonance tube is connected to the center speaker(131). The backward resonance tube forms the backward chamber(123) in the end part connected to the rear loudspeaker. The backward chamber has the expanded cross-sectional area. |
