How to Prevent Plosives and Breath Pops While Recording

Plosives are bursts of air produced by sounds such as “p” and “b.” When that air hits a microphone capsule, it can create a large low-frequency thump unrelated to the musical note. The waveform may look like a massive bass hit, and compression often makes the disruption more obvious.

Fix the air path first

Place a pop filter a short distance in front of the microphone to slow down direct airflow. A filter also helps the singer maintain a repeatable position. Angle the microphone so the capsule sits slightly above or to the side of the mouth, rather than directly in the path of the breath. Check this with a sentence that contains several P sounds.

Do not force the singer to exaggerate or swallow consonants. Clear pronunciation matters, especially in rap, spoken voice and intimate pop vocals. Solve the blast at the microphone whenever possible, not by compromising the performance.

Recognize a plosive in the waveform

A plosive often looks like a relatively slow, high-amplitude bump around a consonant. Listen to a problem region through headphones and compare it with the same word from another take. If the entire note is distorted, you may have clipping rather than a simple air thump.

A gentle high-pass filter can sometimes reduce the low-frequency burst, but do not apply an aggressive cutoff to the whole recording if it removes the singer's body. Try a targeted filter or clip gain on the affected word. A short crossfade can prevent a click at the edit boundary.

Know when restoration will fail

If the plosive overloaded the microphone capsule or converter, the missing clean audio cannot be perfectly reconstructed. Software restoration can make the damage less distracting, but exaggerated repairs often produce unnatural consonants. Re-recording a short phrase may be faster than processing it for an hour.

Treat lip smacks and saliva clicks separately: they are short, often high-frequency events. Manual cuts or dedicated click repair may work, but a breath sound is not automatically an error. Many breaths carry phrasing and emotion.

Five-minute plosive check

• Read “Peter brought a bright paper package” at normal performance intensity.
• Record with and without the pop filter while keeping distance comparable.
• Move the mic slightly above mouth level and compare the bass thumps.
• Inspect one problematic word in the waveform; edit just that word if necessary.

Preventing the blast usually gives a cleaner result than removing it later.