Thanks a lotYou need a DC offset cap on the output 1uF should be enough.
Also the 330 Ohm might be too low, you could have clipping on the output.
Most important, you need a reference that is 3V to pin 3. This is easy to do, take two 100k resistors in series to form a voltage divider. Connect the middle to pin 3 and one outside leg to 6V and the other to GND.
Thanks a lot6)
The Non-Inverting-Input must be "Grounded" a Supply-Point
that is 1/2 of the Supply-Voltage.
I got that part wrong.Thanks a lot
But it didn't work
Thanks a lot
I can't understand this part
Thanks a lot I will try it
I think low pass filter will reduce the high frequency of this self feedback.The lousy old LM358 is too noisy (hiss) to be a mic preamp and it produces crossover distortion. Also it has a poor response to high audio frequencies.
Use an audio opamp instead.
What will prevent the microphone from hearing the speakers and producing acoustical feedback howling?
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by Jake Hertz
by Jake Hertz