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, number, select
Output type: file
Sample coverage: 4
API ready: Yes

Overview

The Audio Multi-band Compressor applies dynamic compression to specific frequency bands in audio files using a 3-band crossover. It allows you to adjust parameters like threshold, ratio, and timing to control dynamics in low, mid, and high frequencies for a balanced sound.

When to use

When mastering music to manage volume inconsistencies across frequency ranges.
When editing podcasts or voice recordings to reduce loudness variations and improve clarity.
When processing audio for broadcast or streaming to achieve consistent loudness levels.

How it works

1Upload an audio file in a supported format (e.g., MP3, WAV).
2Set crossover frequencies to divide the audio into three bands: low, mid, and high.
3Adjust compression settings such as threshold, ratio, attack, release, and makeup gain.
4Choose an output format and download the processed audio file.

Use cases

Mastering a music track to balance bass and treble levels.
Processing a podcast episode to make voice audio more consistent.
Enhancing a live recording by compressing dynamic range in specific frequency bands.

Examples

1. Mastering a Pop Song

Music Producer

Background

A music producer is finalizing a pop song with uneven frequency balance, where the bass is overpowering and vocals are sometimes buried.

Problem

The audio has excessive low-end energy and inconsistent mid-range presence.

How to use

Upload the song file, set Crossover 1 to 150 Hz and Crossover 2 to 5000 Hz, adjust threshold to -20 dB, ratio to 3, attack to 5 ms, release to 100 ms, and makeup gain to 2 dB.

Crossover1: 150 Hz, Crossover2: 5000 Hz, Threshold: -20 dB, Ratio: 3, Attack: 5 ms, Release: 100 ms, Makeup Gain: 2 dB

Outcome

The bass is controlled, and vocals stand out more clearly, resulting in a balanced mix.

2. Improving Podcast Audio

Background

A podcaster has recorded an episode with varying volume levels, making it hard to listen to.

Problem

The audio has loud peaks and quiet sections, reducing overall clarity.

How to use

Upload the podcast audio, use default crossover settings, set threshold to -15 dB, ratio to 2.5, attack to 10 ms, release to 120 ms, and output as MP3.

Outcome

FAQ

What audio file formats can I upload?

You can upload audio files in formats like MP3, WAV, AAC, and others, as long as they are under 200 MB.

How do crossover frequencies work?

Crossover 1 (default 200 Hz) splits low and mid frequencies, and Crossover 2 (default 4000 Hz) splits mid and high frequencies, defining the bands for compression.

Can I apply different compression settings to each band?

No, the compression parameters (threshold, ratio, etc.) are applied uniformly to all bands. Use crossover points to target specific frequency ranges.

What is the maximum file size allowed?

The maximum file size is 200 MB.

What output formats are supported?

Supported output formats include MP3, AAC, M4A, OGG Vorbis, Opus, FLAC, and WAV.

Audio Multi-band Compressor

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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. Mastering a Pop Song

2. Improving Podcast Audio

FAQ

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