Audio Plosive Reducer

Audio Plosive Reducer | Online Free Tool | Elysia Tools

Tool usage guide

Learn when to use this tool, what it supports, and how real users apply it.

Key facts

Category: Media
Input types: file, select, range, number, checkbox
Output type: file
Sample coverage: 4
API ready: Yes

Overview

The Audio Plosive Reducer helps you clean up close-mic speech recordings by targeting and reducing low-frequency P and B consonant thumps. By detecting burst regions and applying high-pass filtering, low-band attenuation, compression, and limiting, it restores vocal clarity while preserving the natural warmth and body of the voice.

When to use

When close-mic vocal recordings suffer from distracting low-frequency thumps caused by P and B plosive sounds.
When editing podcast episodes, audiobooks, or voice-overs where speakers did not use a physical pop filter.
When you need to clean up dialogue tracks for video projects without stripping away the natural warmth and body of the speaker's voice.

How it works

1Upload your audio file and select your desired reduction mode, such as light, podcast, or aggressive.
2Adjust the plosive sensitivity and low cut frequency to target the specific low-frequency burst regions.
3Enable the warmth preservation option to protect the natural body of the voice during attenuation.
4Process the file to apply high-pass cleanup, compression, and limiting, then download the repaired audio in your chosen output format.

Use cases

Repairing podcast interviews recorded with budget microphones or without pop filters.
Cleaning up voice-over tracks for audiobooks to meet strict distribution quality standards.
Polishing video dialogue tracks where wind or close-mic placement caused low-frequency thumps.

Examples

1. Fixing Plosives in a Podcast Interview

Podcast Editor

Background

A host recorded a remote interview using a headset microphone, resulting in heavy P and B pops throughout the audio.

Problem

The low-frequency thumps are distracting to listeners and clip the audio meters.

How to use

Upload the WAV recording, select the 'Podcast De-plosive' mode, set the low cut frequency to 95 Hz, and keep warmth enabled.

reductionMode: podcast, plosiveSensitivity: 0.70, lowCutHz: 95, keepWarmth: true, outputFormat: wav

Outcome

The distracting thumps are attenuated, leaving a clean, professional-sounding dialogue track with its natural warmth intact.

2. Polishing an Audiobook Voice-Over

Voice Actor

Background

An audiobook narrator recorded several chapters in a home studio, but close-mic proximity caused occasional low-frequency bursts.

Problem

The audio needs to pass ACX quality standards, which reject files with excessive low-frequency thumps.

How to use

Upload the MP3 files, choose 'Aggressive P/B Control' for stubborn pops, set sensitivity to 0.8, and export as FLAC.

FAQ

What audio formats are supported for output?

You can export your processed audio as MP3, WAV, FLAC, M4A, or OGG.

How does the Keep Warmth option work?

It prevents the tool from over-filtering the lower frequencies of the voice, ensuring the speaker still sounds natural and full-bodied.

What is the difference between the reduction modes?

Light is for minor cleanup, Podcast is optimized for standard speech, and Aggressive targets heavy P/B thumps.

Can I adjust the frequency threshold for the low-cut filter?

Yes, you can set the low cut frequency anywhere between 40 Hz and 220 Hz.

Will this tool remove background noise?

No, this tool specifically targets low-frequency plosive bursts (P/B sounds) rather than general background noise.

reductionMode: aggressive, plosiveSensitivity: 0.80, lowCutHz: 110, keepWarmth: true, outputFormat: flac

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Learn when to use this tool, what it supports, and how real users apply it.

Key facts

Overview

When to use

How it works

Use cases

Examples

1. Fixing Plosives in a Podcast Interview

2. Polishing an Audiobook Voice-Over

FAQ

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