Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

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


    User Avatar
    Science Advisor
    Gold Member

    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 µPa, just the same that the human ear is comfortable with.......:cool:
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Required Sound Sensor type
  1. Motion sensor (Replies: 5)

  2. Sensor Failure (Replies: 1)

  3. What is this sensor? (Replies: 1)