模拟信号.png 3、音量(响度)的单位:分贝(dB): 代码语言:javascript 复制 声压级的单位,大约等于人耳通常可觉察响度差别的最小分度值 感觉安静:15分贝以下 正常说话:约60dB 燃放烟花爆竹的声音:约150分贝 二、声音的量化(简) 1.模拟信号(波形)转化为数字信号 代码语言:javascript 复制 模拟信号(波形图)-->采...
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