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Analysis of received analog signal

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Majid kh
Majid kh 2019-2-2
回答： Image Analyst 2019-2-2
Hi, I can receive analog signal by microphone how can I measure parameters of signal such as frequency and level?

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Image Analyst
Image Analyst 2019-2-2
Try fft() or spectrogram(), max(), min(), and range().

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