In editing my vocal tracks I need to reduce p-pops. In other audio software I’ve had to make cuts in the waveline peaks in order to reduce these plosives. Is there a filter or a more efficient way to reduce these? Thanks.
Here is the requested sample. I have already reduced this p-pop somewhat by cutting small sections from the waveform, but if I cut much more I’ll lose the ‘p’ sound or at least turn in into something that sounds more like a ‘b’ than a ‘p’.
Try using the High Pass Filter effect.
As a ballpark figure, try “Roll off” = 12 dB per octave and “Frequency” = 100 Hz. Experiment to find results that you are happy with.
You could also try moving the microphone and/or pop-shield positions a little - the popping does not seem too bad, but it may still be catching some wind blast from your P’s.
I generally place the pop-shield about mid-way between microphone and mouth and the microphone so that the diaphragm is a little higher than the mouth.
Steve, I’ll give that a try, but I think perhaps I’ve not explained what I’m looking for clearly enough. I’m under the impression that the Audacity crew developed a hiss/pop filter. If this is true, that’s what I’m interested in trying first. Thanks.
There is a “Pop Mute” effect available as a plug-in. I’m the developer of that It’s not really designed for this type of issue, it’s more of a “disaster recovery tool”. For example, if you hadn’t used a pop shield at all then there could have been a massive “pop” completely ruining your show - “Pop Mute” is designed to handle that type of thing by rapidly reducing the volume of loud pops and then quickly restoring the volume again.
That is not the problem with your audio sample. There’s just a bit of “sub-sonic wobble” of the waveform - if you have sub-woofers in your speaker system the “P” may flap your trouser legs due to the excess bass, but other than that it is not too bad. Mixing desks and microphone pre-amps usually have a built-in “hpf” (high pass filter) or “lcf” (low cut filter) that are essentially the same as the filter that I am suggesting. It is normal when recording vocals to reduce very low frequencies, both for the problem that you describe and for reducing any rumbling noise that may be present. Some microphones have such a filter built in.
It’s very common to use 100Hz cut filters in live recording. There is very little good sound down that low and rumble just creates problems (See: trousers moving in front of the speaker). I have one mixer with selectable 80, 100, 120 filters.