This circuit **broken link removed** looks quite good and if the sensitivity is to low try to increase it by increasing the value of the potentiometer (R2) to, say, 470kΩ - 1MΩ ..
This circuit **broken link removed** looks quite good and if the sensitivity is to low try to increase it by increasing the value of the potentiometer (R2) to, say, 470kΩ - 1MΩ ..
The 741 opamp is your microphone amplifier .. the amplifier's gain is set by the value of potentiometer, so try to increase it ..
Also, keep in mind that this circuit has been designed to operate with an electret microphone ..
The 741 opamp is your microphone amplifier .. the amplifier's gain is set by the value of potentiometer, so try to increase it ..
Also, keep in mind that this circuit has been designed to operate with an electret microphone ..