吉他作為一個例子

擔心尖銳的邊緣是一個最初的,明確的指示of excessively dry air. This is because the wooden fretboard contracts if air humidity is lacking, while the metal of the fret ends does not. Thus, the ends overhang at the sides. Dessicated wood can also be recognized by a change in the surface of the guitar. In the normal state this arches outwards very slightly. It is convex. If it contracts, it caves in, becoming concave. A rippled surface is another sign of low air humidity. This occurs because the precious wood parts between the growth rings cave in more than the hardwood parts. Cracks in the surface usually occur directly behind the bridge and run as far as the near end of the body. This is because the strings push the bridge down onto the surface with force. Also, the grain of the wood in the bridge is positioned diagonally to that of the surface. As a result, not only do the different woods contract in different ways, they also do so in different directions.

如果相對空氣濕度極低，則表麵再次探著。橋似乎彎曲了。如果經過壓力，橋接可以捕捉。與表麵一起，Fretboard End略微進入聲孔。結果，串高度降低，並且琴弦撞擊表麵產生嗡嗡作用。不鬆開的支柱可以推出蓋板的部分。剪切力可以導致內杆線的鬆動。這導致共振幹擾噪音。此外，體內的靜態被削弱，產生其他張力。

鋼琴作為一個例子

鋼琴和其他鍵盤儀器有一個由雲杉製成的聲板，以加強他們的聲音。幾個不同寬度的翅片連接到實現這一點。弦橫跨聲板伸展。他們的緊張局勢在音樂會大鋼琴尤其高。由於幹燥，聲板可以破裂。在鋼琴和大鋼琴的情況下，由於空氣濕度的影響，錘子可能會被卡住。當一個音符“掛起”時，這是最常見的原因。鋼琴經常被肢體。塑料技術用於木材型材，鑲嵌連接數次。在該過程中，不同的木材在表麵上合並，使得光滑的表麵重新出現。 If the air is too dry, the gaps between the woods crack open and the gaps of the underlying wood pull through.

It therefore makes sense to consider the correct air humidity. After all, dry air which extracts vitality and humidity from the material also damages the object’s sound quality and financial value in the process.