---
title: Audio Restoration
description: Audio restoration involves repairing damaged, degraded, or noisy audio recordings. Learners will understand how to use spectral editing tools, noise reduction software, and equalization techniques to remove hums, clicks, and background noise without compromising original audio quality.
category: music-audio
subcategory: audio-engineering
difficulty: beginner, intermediate, advanced
url: /subject/audio-restoration
---

# Audio Restoration

Audio restoration involves repairing damaged, degraded, or noisy audio recordings. Learners will understand how to use spectral editing tools, noise reduction software, and equalization techniques to remove hums, clicks, and background noise without compromising original audio quality.

## Where to start

Start with Audacity Manual - Restoration, which documents the restoration plugins in Audacity, a free open-source audio editor. If you only use one resource, make it izotope.com/learn, iZotope's free education hub with tutorials and guides on noise reduction, spectral repair and restoration workflows. For a book-length treatment, read Digital Audio Restoration by Simon J. Godsill and Peter J. W. Rayner.

## Available Resources

1 Books • 4 Websites

## Websites

### 1. Audacity Manual - Restoration

Official Audacity manual page for the Noise Reduction effect, explaining how to capture a noise profile from a silent section and tune reduction, sensitivity, and frequency smoothing. Readers will be able to remove steady hiss and hum from recordings without obvious artifacts.

**Difficulty:** Beginner | **Price:** Free

**Link:** https://manual.audacityteam.org/man/noise_reduction.html

**Tags:** audacity, noise-reduction, audio-restoration, audio-editing

### 2. izotope.com/learn

iZotope Learn is the company's education hub offering tutorials, articles, webinars, and guides on audio restoration and production, including how-tos and tips on noise reduction, spectral repair, and restoration workflows using iZotope tools.

**Difficulty:** Intermediate | **Language:** English | **Price:** Free

**Link:** https://izotope.com/learn

**Tags:** websites, music-performing-arts, audio-engineering

### 3. soundonsound.com

Sound On Sound is a long-running audio recording magazine and website. It publishes in-depth tutorials, gear reviews, and practical how-to articles on recording, mixing, mastering, microphone technique, DAWs, plugins, and studio setup.

**Difficulty:** Intermediate | **Language:** English | **Price:** Free

**Link:** https://soundonsound.com

**Tags:** websites, music-performing-arts, audio-engineering

### 4. mixonline.com

Mixonline.com is the online home of Mix Magazine, a professional audio trade publication. It features news, reviews, feature stories, and buying guides about mixing consoles, studio and live sound gear, and audio production technology.

**Difficulty:** Intermediate | **Language:** English | **Price:** Free

**Link:** https://mixonline.com

**Tags:** websites, music-performing-arts, audio-engineering

## Books

### 1. Digital Audio Restoration

**Author:** Simon J. Godsill, Peter J. W. Rayner

Graduate monograph on statistical signal processing for restoring degraded audio, covering click removal, hiss reduction, autoregressive modelling, and Bayesian and Markov chain Monte Carlo methods. Readers gain the mathematical basis for building and evaluating algorithms that repair damaged recordings.

**Difficulty:** Intermediate | **Language:** English | **Price:** Paid

**Link:** https://www.amazon.com/dp/3540762221?tag=edmonddante07-20

**Tags:** books, music-performing-arts, audio-engineering

---

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