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Audio Compressor

· Last updated：2025-12-05

Apply dynamic range compression with configurable threshold, ratio, attack/release, and makeup gain

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Written by the Elysia Tools team
Audio312
Compression131
Ratio55
Dynamic Range7

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

This audio compressor tool applies dynamic range compression to audio files, allowing you to reduce volume variations by adjusting threshold, ratio, attack, release, and makeup gain parameters for consistent loudness.

When to use

  • When you need to reduce dynamic range in audio recordings for more even volume levels.
  • When preparing audio for broadcast or streaming to comply with loudness standards.
  • When enhancing vocals or instruments by controlling peaks and boosting quieter parts.

How it works

  1. 1Upload your audio file in a supported format like MP3, WAV, or AAC.
  2. 2Set compression parameters: threshold (dB), ratio, attack time (ms), release time (ms), and makeup gain (dB).
  3. 3Select the output format and process the file to apply compression.
  4. 4Download the compressed audio file with reduced dynamic range.

Use cases

  • Podcast editing to level out voice volumes across different speakers and segments.
  • Music production for mastering tracks with controlled dynamics and increased loudness.
  • Voiceover processing to minimize sudden volume spikes and ensure clear, consistent audio.

Examples

1. Podcast Audio Leveling

Podcaster

Background

A podcaster records interviews with varying voice levels due to different speakers and emotional tones.

Problem

The audio has inconsistent volume, requiring listeners to frequently adjust their volume controls.

How to use

Upload the podcast audio file, set threshold to -20 dB, ratio to 3:1, attack to 10 ms, release to 100 ms, and makeup gain to 5 dB.

thresholdDb: -20, ratio: 3, attackMs: 10, releaseMs: 100, makeupDb: 5

Outcome

The compressed audio has more uniform volume, improving listener comfort and engagement.

2. Music Track Mastering

Music Producer

Background

A producer is finalizing a song with dynamic elements like loud drum hits and quiet vocal passages.

Problem

The track needs to be louder and more balanced for streaming platforms without distortion.

How to use

Upload the mixed audio, apply compression with threshold at -10 dB, ratio of 4:1, attack of 5 ms, release of 150 ms, makeup gain of 3 dB, and output as MP3.

FAQ

What is dynamic range compression?

It reduces the difference between the loudest and quietest parts of an audio signal for more consistent volume.

What does the threshold parameter control?

Threshold sets the audio level in dB above which compression is applied to the signal.

How does the ratio affect compression?

Ratio determines the amount of compression; a 4:1 ratio means signals above the threshold are reduced to one-fourth of their original level.

What are attack and release times?

Attack time is how quickly compression starts after exceeding the threshold; release time is how quickly it stops when the signal drops below.

Why is makeup gain used?

Makeup gain boosts the overall audio level after compression to compensate for volume reduction and achieve desired loudness.

Hub

Audio Loudness, Dynamics, and Mastering Delivery

Measure LUFS, true peak, and dynamics, apply suitable control, and verify podcast, broadcast, or music audio before delivery.

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Outcome

The mastered track has reduced dynamic range, making it suitable for streaming with consistent loudness and clarity.