A way to reduce "P" popping sounds, after already recorded?

Try to squeeze high-end frequencies with EQ. If it's still a problem, you can perform some micro surgery: cut out the spikes and replace them with the slice of sound that immediately precedes it. However, if there are many of these over a long recording, that will be a lot of work.

Plosives are low frequencies.



Try a high pass filter. Start cutting at around 80-90Hz and adjust the cutoff frequency from there using your ears....

**** wrote:
Plosives are low frequencies.

Oh, that's good to know! The pass filter was the best advice.