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钢琴音板在钢琴中占有十分重要的地位。钢琴的6000多个部件中,音板是决定音色优劣、音量(响度)大小和发音持久与否的关键。 钢琴弦被小槌敲击发生振动,只能激起有限的空气发生振动,不能带动足够的空气发生振动,也不能使声波持续足够长的时间。但是,当琴弦发生振动时,音板却能够鼓动大量的空气发生振动,产生3时至40呎波长的声波,使人们能够听到清晰悦耳的钢琴声音。钢琴音板除辐射琴弦的振动频率外,还要承受弦的压力。在230多条琴弦的钢琴中,
The piano soundboard occupies a very important position in the piano. Among the more than 6,000 parts of the piano, the soundboard is the key to determining the quality of the sound, the volume (loudness), and the persistence of the pronunciation. When the piano strings are struck by a small hammer and vibrate, they can only excite the limited air to vibrate, can’t drive enough air to vibrate, and can’t make the sound waves last long enough. However, when the strings are vibrated, the soundboard can excite a large amount of air to vibrate, producing sound waves of 3 to 40 wavelengths, enabling people to hear clear and pleasant piano sounds. In addition to the vibration frequency of the string, the piano board also bears the string pressure. In more than 230 strings of pianos,