| 摘要 |
A device (10) used by a drummer to produce low frequency signals in response to the playing of a bass drum (D). Low frequency signals from the device are first amplified and then sent to a subwoofer near the drummer, or tactile transducer connected to the drummer's chair (C). This results in a powerful shaking effect each time the drum is struck. The device is used in a stand alone audio circuit and does not require connection into a band's complete audio system. This is important because it allows the drummer to feel a powerful shaking effect each time the drum is struck when practicing or while playing in situations where an audio system is limited or non-existent.
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