利用智能手机显示声音的频谱并探究声压级与距离的关系

Using smartphone to display sound spectrum and explore the relationship between sound pressure level and distance

利用智能手机中的Phyphox软件设计了2个声学实验,即声音的频谱显示和验证声压级与距离的关系,详述了在声音的频谱显示实验中如何直观显示声音的3要素,在探究声压级与距离关系的实验中如何测量不同距离的声压级,然后将实验数据拟合成图线,验证理论公式.

Two acoustic experiments designed using the Phyphox software and smartphone,namely the sound spectrum display and the verification of the relationship between sound pressure level and distance.This paper detailed how to visually display the three elements of sound in sound spectrum display experiment and explored how to measure the sound pressure level at different distances,and then fitted the experimental data to verify the theoretical formula.