I am trying to design a microphone circuit that can get sound from a 15ft-20ft distance, and process the data through the PI. I am using small microphone (EM6027LW-42C)
50Hz ~ 10kHz Analog Microphone Electret Condenser 1V ~ 10V Omnidirectional (-42dB ±3dB @ 94dB SPL) Wire Leads
I have tried to amplify it using a LM386 with a gain of 200 but still didn't work as expected
Do you have any advice or how to approach this issue?