Pakarinen J, Penttinen H, Bank B
Laboratory of Acoustics and Audio Signal Processing, Helsinki University of Technology, PO Box 3000, FI-02015 TKK, Finland.
J Acoust Soc Am. 2007 Dec;122(6):EL197-202. doi: 10.1121/1.2786607.
This study analyzes the handling noises that occur when a finger is slid along a wound string. The resulting noise has a harmonic structure due to the periodic texture of the wound string. The frequency of the harmonics and the root-mean-square amplitude of the noise were found to be linearly proportional to the sliding speed. In addition, the sliding excites the longitudinal modes of the string, thus resulting in a set of static harmonics in the noise spectrum. The sliding excites different longitudinal modes depending on the sliding location.
本研究分析了手指沿着伤口线滑动时产生的处理噪声。由于伤口线的周期性纹理，产生的噪声具有谐波结构。发现谐波频率和噪声的均方根幅度与滑动速度呈线性比例关系。此外，滑动会激发线的纵向模式，从而在噪声频谱中产生一组静态谐波。根据滑动位置的不同，滑动会激发不同的纵向模式。
