Creating a Highly Sensitive Sound Sensor: Challenges and Considerations

[Ansuman]

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...

 

[davenn]

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 ?

Dave

 

[Ansuman]

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 ?

Dave

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...