| 摘要 |
PROBLEM TO BE SOLVED: To provide a speaker device capable of improving sound quality by reducing phase deviation due to variation in sound pressure on the cross section in a depth direction. SOLUTION: The speaker device 1 is provided with a speaker driver 3, a flare 5 and a waveguide 7 provided between the speaker driver 3 and the flare 5. The waveguide 7 is provided with a guide housing 11 and a phase plug 13 housed in the wave housing 11. A sound path is formed between the guide housing 11 and the phase plug 13. A sound path length is uniformed by arranging the sound path around the phase plug 13. Since a sound path width around the phase plug 13 on the cross section in the depth direction is fixed, the sound pressure distribution is uniform and the variation in sound pressure is reduced. COPYRIGHT: (C)2007,JPO&INPIT
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