相对湿度和钢琴音高

• 作 者: 缪龙杰
• 出 处: 乐器
• 发表日期: 1981年04期
• 关键词: 音高 立式钢琴 室内相对湿度 播音室 音分 周围空气 三年 华盛顿大学 波动 记录表

众所周知,在大多数气候温和的地带,由于室内相对湿度的变化,钢琴的“音高”在夏天会偏高,冬天会偏低。然而,人们往往忽略了这样一个事实:即使湿度变化仅发生在几天之中,钢琴的音高也会受到影响。湿度变化与钢琴音高之间的相互关系如本文附图所示。为了取得这些数据曾将一台高质量的45吋立式钢琴,放置在华盛顿大学音乐大厅的播音室里,进行了近三年监测。这段时期内,既

It is well-known that in most temperate climates, the “pitch” of a piano is high in the summer and low in the winter due to changes in indoor relative humidity. However, one often overlooks the fact that the piano’s pitch can be affected even if humidity changes occur only for a few days. The relationship between the change in humidity and the pitch of the piano is as shown in the attached drawing. In order to obtain these data, a high-quality 45-inch upright piano was placed in the studio of the University of Washington Music Hall for nearly three years. During this period, both