| 基于声卡和Audacity软件的固体声速测量 |
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| 引用本文： | 陈丹慧,叶泽波,李德安. 基于声卡和Audacity软件的固体声速测量[J]. 物理通报, 2022, 0(1): 120-123 |
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| 作者姓名： | 陈丹慧 叶泽波 李德安 |
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| 作者单位： | 华南师范大学物理与电信工程学院 |
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| 摘 要： | 基于时间差法原理设计了利用电脑声卡和Audacity软件测量固体声速的实验.利用电脑声卡收集左右声道的声音并实时呈现在Audacity软件界面,可准确测得左右声道收集到声音的时间差,计算得到声音在固体材料中的传播速度.实验现象直观,可用于中学课外拓展实验.
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| 关 键 词： | 固体 声速测量 时间差 声卡 Audacity软件 |
Measuring the Sound Velocity in Solid in Basedon Sound Cards and Audacity Software |
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| Affiliation: | (School of Physics and Telecommunicaion Engineering,South China Normal University,Guangzhou,Guangdong 510006) |
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| Abstract: | Based on the principle of time difference method,an experiment was designed to measure the sound velocity of solid by using computer sound card and Audacity software.The computer sound card is used to collect the sound of the left and right sound channels and present it in real time on the Audacity software interface,which can accurately measure the time difference of the sound collected by the left and right sound channels and calculate the sound propagation speed in the solid material.The experiment phenomenon is intuitive,and can be used in the middle school extracurricular expansion experiment. |
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| Keywords: | solid measuring the sound velocity time difference sound cards Audacity software |
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