babboy12345
New Member
Dear all, i'm doing final year project for using music as a input to control my water pump on/off and other application. But now i dono to use which microcontroller to ADC my music signal, and my signal bandwidth is 4khz.
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Doesn't sound like you even need to record any "music". Just peak rectify the audio with a diode, cap & resistor and use either a ADC or comparator in the microcontroller to detect the varying DC voltage level.Dear all, i'm doing final year project for using music as a input to control my water pump on/off and other application. But now i dono to use which microcontroller to ADC my music signal, and my signal bandwidth is 4khz.
You don't need 8 kHz, but more than 8 kHz. So as long as the sampling rate is more than twice the maximum frequency, then it's okay. Of course the higher the sampling rate the better the quality, but you need to handle the conversion data in shorter time.thx
you make me clear now, very very thx. If i need oni 8Khz,but i set to 26Khz,is that works well?
Dear all, i'm doing final year project for using music as a input to control my water pump on/off and other application. But now i dono to use which microcontroller to ADC my music signal, and my signal bandwidth is 4khz.