phonocardiogram

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- July 23, 2006 at 5:47 am #5298
  spark
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  m designing a phonocardiogram-auscultation device for my project using an electret condensor microphone followed by a band pass filter amplifier circuit of gain 1000 (20 to 2000 Hz). any suggestions/ ideas please…..
  will it work with a buzzer plate instead of mic? how dependable is a mic?
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