I am working on a small project on sound detection of lungs.
I want to get the sound using a sound sensor and play it on a speaker in real-time using Arduino.
Please suggest to me a good sound sensor that can detect the sound of the lungs.
I have read on google that the best frequency for lungs is 100 to 600 Hz.
By the way, I am using Electret Microphone Amplifier - MAX4466 with Adjustable Gain
But it is not getting the values. I think I need a preamplifier.
Thank you for your help.