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Required Sound Sensor type

  1. Feb 24, 2013 #1
    Anyone has got an idea about a sound sensor ( that is really sensitive !!) , i.e., can sense the sound levels of 20-25 db to convert them to electrical signals........or atleast how to make such a sensitive sensor....
  2. jcsd
  3. Feb 24, 2013 #2


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    a microphone is the usual way

    a bit more info on your planned application would be helpful so those here could help you better :)

    is the microphone going to be close or distant to the sound source ?
    what distance ?
    what frequency range ?

  4. Feb 25, 2013 #3
    Distance may be 10-15 m and the frquency is the frequency of normal conversation i.e about 500-6000 hz and the sound pressure level is about 20,000 ┬ÁPa, just the same that the human ear is comfortable with.......:cool:
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