# Noise Removal and Repair

## MuseFX Noise Gate

A noise gate. Part of the [#muse-fx](https://plugins.audacityteam.org/plugin-suites#muse-fx "mention") pack.

<details>

<summary>Details</summary>

See the pack for installation instructions.

A noise gate keeps noise in quiet parts out while not affecting the audio you want at all.

![](https://2455084635-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FklCVENFte0GRy5IqVz0W%2Fuploads%2F9oJA7SX7djxBRS8gohhV%2Fimage.png?alt=media\&token=2bf1745e-0984-4679-a75b-c8c0229ba075)

</details>

## MuseFX De-Ess

An easy to use de-esser. Part of the [#muse-fx](https://plugins.audacityteam.org/plugin-suites#muse-fx "mention") pack.

<details>

<summary>Details</summary>

See the pack for installation instructions.

Has presets for female and male voices, harshness, sibilance, steel guitar and strings rosin.

<img src="https://2455084635-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FklCVENFte0GRy5IqVz0W%2Fuploads%2F7iVYswoEKZwW8w6GdUhi%2Fimage.png?alt=media&#x26;token=6bf364de-0eb4-44df-b30d-4ba6cd6599f6" alt="" data-size="original">

</details>

## ReaFIR

A multi-purpose dynamics processor, can be used for EQ, compressor, gate and noise reduction purposes. Part of ReaPlugs.

{% embed url="<https://www.reaper.fm/reaplugs>" %}
Download page
{% endembed %}

{% hint style="info" %}
Hint: ReaFIR in Subtract mode can be used to remove noise.
{% endhint %}

<details>

<summary>Details</summary>

Copyright (C) 2006-2016, Cockos Incorporated VST PlugIn Technology by Steinberg Media Technologies GmbH

Information from the vendor:

* FFT based dynamics processor
* Supports FFT sizes of 128-32768
* Useful in/out frequency response display
* Supports defining response curves both using any number of points, or freehand mouse
* EQ - can be used as a linear phase mastering EQ, or as a super-effective surgical EQ
* Compressor - can compress at a fixed ratio with a per-band threshold
* Gate - can gate with per-band threshold
* Subtract - can build noise profiles and subtract noise from the signal

<img src="https://2455084635-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FklCVENFte0GRy5IqVz0W%2Fuploads%2Fxxyny0TmqQjq9TjHcOrW%2Fimage.png?alt=media&#x26;token=4ee20e38-5d41-4343-8530-3cefb25f1342" alt="" data-size="original">

</details>

## ReaGate

A noise gate effect, part of ReaPlugs.

{% embed url="<https://www.reaper.fm/reaplugs>" %}
Download page
{% endembed %}

<details>

<summary>Details</summary>

Copyright (C) 2006-2016, Cockos Incorporated VST PlugIn Technology by Steinberg Media Technologies GmbH

Information From the vendor:

* Ultra-configurable gate
* Sidechain filters, sidechain input
* Lookahead for pre-open
* Hold control
* Hysteresis control
* Variable RMS size
* Can send MIDI events on gate open/close
* Wet/dry mix, noise mix (can add noise when gate is open)

<img src="https://2455084635-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FklCVENFte0GRy5IqVz0W%2Fuploads%2FwXahzNzgabDRWJqQChEK%2Fimage.png?alt=media&#x26;token=9c577c75-cc19-4207-bbe5-06fcadb99e84" alt="" data-size="original">

</details>

## RNNoise suppression for voice

Removes most sounds that aren't speech.

{% hint style="warning" %}
This plugin only works with a 48000Hz sample rate. You can change the project sample rate in Audio Setup -> Audio Settings.
{% endhint %}

{% embed url="<https://github.com/werman/noise-suppression-for-voice/releases>" %}
Download page
{% endembed %}

## NVIDIA Broadcast

A virtual device that sits between your microphone and Audacity and other programs which allows you to use an AI denoiser.

{% hint style="warning" %}
**Caution:** NVIDIA Broadcast only works on Windows machines with a NVIDIA RTX GPU.

Further, it only works on spoken word content; musical content is treated as noise and filtered out.
{% endhint %}

{% embed url="<https://www.nvidia.com/en-gb/geforce/broadcasting/broadcast-app/>" %}
Download page
{% endembed %}

<details>

<summary>Details</summary>

Copyright © 2022 NVIDIA Corporation

Requires NVIDIA GeForce RTX 2060, Quadro RTX 3000, TITAN RTX or higher

Full setup guide: <https://www.nvidia.com/en-gb/geforce/guides/broadcast-app-setup-guide/>

Technically, NVIDIA Broadcast isn't a plugin but a virtual device. You will find it in Audacity's audio settings as an input. It does not show up in the Plugin Manager.

</details>

## See also

* [dynamics-processing](https://plugins.audacityteam.org/realtime-effects/dynamics-processing "mention") - Dynamics processors can often be used for noise reduction purposes