发明名称 AUDIO PLAYBACK SYSTEM
摘要 Provided is an audio playback system, which reduces a restriction on a place of installation and which reduces the dispersion of characteristics of sound pressures in a low frequency range due to the seats in a passenger interior of a vehicle so that a comfortable bass sound can be enjoyed at any seat. The audio playback system comprises a first filter (108), to which an audio signal outputted from a playback apparatus (107) is inputted, configured to pass a frequency band lower than a first-order resonance frequency of the passenger interior of the vehicle, a first sub-woofer (104) configured to receive an output signal of the first filter (108), a second filter (109), to which the audio signal from the playback device (107) is inputted, configured to pass a frequency band including the first-order resonance frequency of the interior, and a second sub-woofer (105), to which an output signal of the second filter (109) is inputted, configured to be installed near a node of a first-order resonance mode of the interior.
申请公布号 US2009190773(A1) 申请公布日期 2009.07.30
申请号 US20070302870 申请日期 2007.05.28
申请人 PANASONIC CORPORATION 发明人 KATAYAMA TARO;HAGA TSUYOSHI
分类号 H04B1/00 主分类号 H04B1/00
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