---
title: "Gain, Normalize, and Compress Audio | AudioMultiCut Tools"
description: "Adjust gain, normalize peaks, add light compression, and export processed audio in your browser."
canonical: "https://audiomulticut.com/tools/audio-volume-normalizer"
---
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Tools

[All AudioMultiCut toolsBrowse focused audio and video workflows.](https://audiomulticut.com/tools)[AudioMultiCutCut multiple audio segments from a long recording and export them in one pass.](https://audiomulticut.com/)[Remove parts from audioDelete unwanted sections, silence, mistakes, or dead air from an audio file.](https://audiomulticut.com/tools/remove-parts-from-audio)[Gain / normalize / compressionBalance loudness, raise quiet recordings, and tame peaks before sharing or exporting.](https://audiomulticut.com/tools/audio-volume-normalizer)[Audiogram makerTurn podcast clips, interviews, or voice notes into simple social-ready audiograms.](https://audiomulticut.com/tools/audiogram-maker)[Video multi cutCut multiple moments from long videos with the same fast multi-segment workflow.](https://audiomulticut.com/tools/video-multi-cut)[Remove parts from videoDelete unwanted video sections and export one joined local-browser edit.](https://audiomulticut.com/tools/remove-parts-from-video)[Spectrogram editor + noise brushFind noises visually and brush away clicks, hum, bumps, or background artifacts.](https://audiomulticut.com/tools/spectrogram-editor)

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# Gain, normalize, compress

Raise quiet recordings, set a target peak, and smooth loud moments before export.

Preparing the audio engine...

## How to use Gain, normalize, compress

Use this after the edit is chosen and the file needs to be easier to hear. It raises quiet recordings, controls peaks, lifts soft parts, and adds compression when loud and quiet moments are too far apart.

### What to click

- 1Upload the audio and look at the original versus processed waveform.
- 2Start with the master compression amount only if the recording has very uneven loud and quiet parts.
- 3Use gain and normalization for overall level, then quiet boost for sections that still disappear.
- 4Play while adjusting, hold Before to compare, then export the processed audio when it sounds natural.

### Best use cases

- Voice memos, lessons, interviews, and rehearsal notes recorded too quietly.
- Clips where soft speech disappears but loud words or music peaks are already high.
- Making several exported clips feel closer in level before sharing.
- Quick listening cleanup when full mastering tools would be more work than the file deserves.

### Control guide

Gain

Raises or lowers the whole file by a fixed amount.

- Default: 0 dB.
- Range: -12 dB to +18 dB.
- Affects: everything equally.

Normalize

Moves the loudest peak to the target level.

- Default: on.
- Affects: the overall level after gain.
- Use it to raise quiet files without crossing the peak ceiling.

Peak

Sets the ceiling used by Normalize.

- Default: -1 dB.
- Range: -6 dB to 0 dB.
- Example: -1 dB leaves safer headroom than 0 dB.

Quiet boost

Lifts softer parts below the Boost below threshold.

- Default: 0 dB.
- Range: 0 dB to +30 dB.
- Affects: low-level sections more than loud sections.

Boost below

Sets what counts as quiet for Quiet boost.

- Default: -42 dB.
- Range: -72 dB to -18 dB.
- Higher values affect more of the recording.

Compression amount

Reduces the gap between loud and quiet parts.

- Default: 1.8:1.
- Range: 1:1 to 12:1.
- Use less for natural speech, more for uneven recordings.

Threshold

Sets the level where compression starts.

- Default: -12 dB.
- Range: -48 dB to -3 dB.
- Lower threshold means more of the file is compressed.

Attack

Controls how quickly compression reacts.

- Default: 8 ms.
- Range: 1 ms to 120 ms.
- Fast catches peaks; slow keeps more punch.

Release

Controls how quickly compression relaxes.

- Default: 180 ms.
- Range: 30 ms to 800 ms.
- Longer release usually sounds smoother.

Hold before

Temporarily switches playback back to the original.

- Affects: monitoring only.
- Use it to check whether the processed version is actually better.

Format

Chooses the exported file type.

- Default: MP3.
- Options: MP3, WAV stereo, WAV mono.
- Use WAV stereo when left/right detail matters.

When this is not the right tool: This is not a full mastering suite. If you need exact LUFS delivery, multi-band mastering, restoration, or music mix decisions, use a dedicated audio editor.

![Audio Volume Normalizer showing before and processed waveform levels.](https://audiomulticut.com/_next/image?url=%2Farticle-screenshots%2Ftools-audio-volume-normalizer.jpg&w=1600&q=75&dpl=dpl_2JMPia5CMxdedvqoVqs9b5z7XM4q)

### Related guides

[Best Use Cases for an Online Audio Volume Normalizer

When to normalize audio, raise quiet recordings, add light compression, and export a more consistent file without turning the process into mastering.](https://audiomulticut.com/articles/audio-volume-normalizer-use-cases)[Cut Clips First, Then Normalize: A Cleaner Audio Workflow

A practical export-then-import workflow for cutting useful clips first, then importing the final files into AudioMultiCut's volume normalizer.](https://audiomulticut.com/articles/cut-clips-then-normalize-audio-workflow)[Remove Mistakes First, Then Normalize the Cleaned Audio

Use Remove Parts from Audio to delete dead air, stumbles, or private details, then import the cleaned export into the volume normalizer.](https://audiomulticut.com/articles/remove-mistakes-then-normalize-audio-workflow)[Best Audio Volume Normalizer Alternatives for Loudness Cleanup

Compare AudioMultiCut's volume normalizer with Audacity, Auphonic-style processors, DAWs, video editors, and simple web normalizers.](https://audiomulticut.com/articles/best-audio-volume-normalizer-alternatives)[How to Combine AudioMultiCut Tools Without Making the Edit Messy

A practical workflow for using the cutter, remove-parts editors, normalizer, audiogram maker, video tools, and spectrogram editor together without losing track of the job.](https://audiomulticut.com/articles/combine-audio-tools-workflow)

[AudioMultiCut](https://audiomulticut.com/)

Free online audio cutting tools for splitting, cleaning, and preparing recordings in the browser.

© 2026 AudioMultiCut.

Tools

- [AudioMultiCut](https://audiomulticut.com/)
- [Remove parts from audio](https://audiomulticut.com/tools/remove-parts-from-audio)
- [Gain / normalize / compression](https://audiomulticut.com/tools/audio-volume-normalizer)
- [Audiogram maker](https://audiomulticut.com/tools/audiogram-maker)
- [Video multi cut](https://audiomulticut.com/tools/video-multi-cut)
- [Remove parts from video](https://audiomulticut.com/tools/remove-parts-from-video)
- [Spectrogram editor + noise brush](https://audiomulticut.com/tools/spectrogram-editor)

Articles

- [Remove Parts from Video](https://audiomulticut.com/articles/remove-parts-from-video-use-cases)
- [Combine AudioMultiCut Tools](https://audiomulticut.com/articles/combine-audio-tools-workflow)
- [Remove Parts vs Audio Cutter](https://audiomulticut.com/articles/remove-parts-from-audio-vs-audio-cutter)
- [Audio Cutter Alternatives](https://audiomulticut.com/articles/audio-cutter-alternatives)
- [Audio Cutter Comparison Table](https://audiomulticut.com/articles/audio-cutter-comparison-table)

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