KEYBOARD INSTRUMENT
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United States of America Patent
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N/A
Issued Date -
Apr 18, 2013
app pub date -
Sep 14, 2012
filing date -
Sep 14, 2011
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
In a predetermined sound generation mode, a drive signal having a frequency characteristic corresponding to an operated key is supplied to excitation units provided on a soundboard. The soundboard is vibrated in response to a mechanical vibration generated by the excitation units to generate an acoustic sound by the vibration of the soundboard. The frequency characteristics of the drive signal to be supplied to each of the excitation units is set in association with the vibration characteristics of the soundboard at a position of a vibration member of each excitation unit connected to the soundboard. For example, the frequency characteristics of the drive signal is set to characteristics capable of suppressing resonance of the soundboard.
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