Python用于音叉接触纸张的泛音现象研究

Research on Overtone Phenomenon of Tuning Fork Touching Paper Using Python

以音叉接触纸张的泛音现象为研究对象,利用Python-Librosa库进行频谱分析,定性探究泛音现象的特点及其影响因素.研究发现音叉接触纸张振动会产生与音叉基频成整数倍关系的高次谐波.音叉接触距离纸张悬挂部位越远的区域,以及纸张厚度越厚,振动产生的高次谐波越多,声音越尖锐;音叉接触A4纸和白卡纸振动产生的谐波现象较为明显,接触草稿纸产生的谐波现象不明显.

Taking harmonics of paper contact with tuning fork as the research object,using python-Librosa library for spectrum analysis,qualitative research on the characteristics of harmonic phenomenon and its influencing factors.It is found that the vibration of paper contact with tuning fork produces high order harmonics which are integer times related to the fundamental frequency of tuning fork.The farther the tuning fork contact distance from the paper hanging part of the region,and the thicker the paper thickness,vibration generated by the higher harmonic,the more sharp sound;The harmonic phenomenon is more obvious when the tuning fork touches A4 paper and white card paper,while the harmonic phenomenon is not obvious when it touches draft paper.