直接处理和分析声音
计算声音对象的声谱图.
| In[1]:= |  X |
| In[2]:= |  X |
| Out[2]= |  |
计算声音的周期图.
| In[3]:= |  X |
| Out[3]= |  |
声音的带通滤波. 用 Quantity 对象指定截止频率.
| In[4]:= |  X |
| Out[4]= |  |
显示滤波后的声音周期图.
| In[5]:= |  X |
| Out[5]= |  |
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