日常生活中我们会接触到各种声音,有的听起来高,有的听起来低,声音的高低叫作音调.那么如何探究声音音调的高低呢?我们结合例题来看如何进行实验探究.例1小红注意到爸爸在拉二胡前总要把二胡的两个把手仔细调试,如图1.爸爸说这是在调整弦的松紧.拉二胡时,小红注意到爸爸的手指不停地在琴弦上来回移动,同时听到优美的曲调传 In everyday life we ​​come into contact with all kinds of sounds, some of them sound high, others sound low, and the level of sound is called pitch. So how can we explore the pitch of the sound? We will combine the examples to see how to conduct experiments. 1 Little Red noticed that my father always tried to carefully debug the two handles of the erhu before pulling the erhu, as shown in Figure 1. Father said that it was adjusting the tightness of the strings, and when he pulled the erhu, Xiao Hung noticed that dad’s finger was constantly on The strings move back and forth, while listening to beautiful melodies