De-plosive

STD & ADV
Module & Plug-in

Overview

A plosive is a consonant speech sound that occurs when the vocal tract briefly blocks the flow of air during speech. When the block in the vocal tract is resolved, an audible release of pressure occurs, called a plosive. Pop filters (in a studio) or wind filters (on location) are commonly used when recording vocals or dialogue, in order to reduce the popping effect that can occur when the higher pressure plosive signal comes into contact with the diaphragm of a microphone.

De-plosive can intelligently identify, separate and reduce plosives in an input signal while still preserving the fundamental frequency content and harmonics of the dialogue.

Controls

The following section describes the controls available for refining plosive reduction.

Sensitivity

Adjusts how much of the input audio will be categorized as a plosive. Sensitivity has a greater effect on the overall effectiveness of plosive reduction than simply increasing the Strength control.

• Lower values will instruct the algorithm to narrowly define what it will detect as a plosive. This may result in less overall reduction of plosives with the benefit of maintaining the quality of the speech signal.
• Higher values will instruct the algorithm to more broadly detect plosives in the input signal, which may result in too much of the speech signal being identified as, and subsequently reduced with, the plosive signal content.

Strength

Adjusts the amount of reduction applied to the detected plosive signal content. Higher values can result in significant plosive reduction at the cost of decreasing the quality and clarity of the speech signal. To maintain the speech signal while still reducing plosives, try increasing the Sensitivity control and decreasing the Strength control.

Frequency Limit [Hz]

Sets the upper frequency boundary for plosive reduction. Plosives typically manifest between 20Hz to 300Hz, but may sometimes reach as high as 500Hz. Setting this control just above where the plosives are occurring in the input signal can help reduce unwanted reduction of frequency above where the plosives are occurring.