It’s normal to hear pops in vocal recordings. This is due to a few letters that when spoken produce rapid bursts of air that overloads the microphone. There’s no need to replace your microphone but you have to have to add a little tool to prevent pops - a pop filter. It removes pops by dissolving the bursts of air so that they will not be picked up by your microphone. Letters that produce blasts of air are known as plosives and can include letters P, B, T and D.