Description: Read the bluesky3.wav file (the content is for boys "blue sky, white clouds"), mix 50Hz hum into the voice data, design a band digital filter with Kaiser window, passband cutoff rate 45Hz, band cutoff Frequency 49 and 51, the minimum attenuation of the stop band is A2=50dB, and the sampling frequency is 8000Hz.
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File list (Check if you may need any files):
| Filename | Size | Date |
|---|
| 带阻数字滤波器\add_noisedata.m | 1050 | 2013-10-23
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| 带阻数字滤波器\add_noisefile.m | 1010 | 2013-10-23
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| 带阻数字滤波器\bluesky3.wav | 38044 | 2012-06-16
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| 带阻数字滤波器\bluesky31.wav | 38044 | 2013-02-24
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| 带阻数字滤波器\bluesky32.wav | 38044 | 2012-07-23
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| 带阻数字滤波器\factory1.wav | 160044 | 2013-03-03
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| 带阻数字滤波器\Gnoisegen.m | 645 | 2013-05-02
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| 带阻数字滤波器\lvboqi.m | 2285 | 2018-09-02
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| 带阻数字滤波器\polydetrend.m | 363 | 2013-06-08
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| 带阻数字滤波器\SNR_singlech.m | 400 | 2013-05-01
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| 带阻数字滤波器 | 0 | 2018-09-02 |
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