| 摘要 |
PROBLEM TO BE SOLVED: To obtain a small-sized resonance device which has superior voicing capability for a low frequency range. SOLUTION: The resonance device comprises a sound source 5, a resonance box 4 which holds the sound source 5 on one surface so that vibrations of the sound source 5 may be transmitted to an internal space, and at least one elastic partition wall 6 which is arranged behind the sound source 5 to partition the internal space into at least one air spring chamber. It is considered that a resonance phenomenon occurs because of vibrations and the mass of the elastic partition wall 6, air spring operation in the air spring chamber 40, and even when the capacity of the resonance box 4 is made small, the same voicing capability for the low frequency range with a large resonance box can be obtained. COPYRIGHT: (C)2007,JPO&INPIT
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