Category Archives: Plug-ins

Free plug-ins to add new features and effects to Audacity.

Highest and Lowest Peaks

This plug-in is for measuring the highest and lowest peaks in the selected region. It is intended for fairly short selections. Example use cases include precisely measuring the level of noise prior to using dynamic effects such as Noise Gates, or measuring the amount of asymmetry in a waveform. Unlike most other peak measuring tools, … Continue reading Highest and Lowest Peaks

Aligning Multiple Tracks

This plug-in extends the capabilities of the Align Tracks plug-in. As with the original version, it requires a synchronisation mark near the beginning of each track (see the description for the previous version). This new version, designed for Audacity 2.4.2 or later, locates the synchronisation mark in the first selected track, then adjusts the positions … Continue reading Aligning Multiple Tracks

Binding keys to vertically zoom tracks

A recent feature request for Audacity was for the provision of key bindings to zoom in / out vertically on a track. This feature is already available in a limited fashion from the “Set Track Visuals” macro command. The first step is to create a macro and add the command “Set Track Visuals”. Enable the … Continue reading Binding keys to vertically zoom tracks

Remove space between clips

This plug-in is a Nyquist Macro (it uses Audacity’s Scripting commands to modify the project). As is standard for Nyquist Macros, the plug-in will appear in the “Tools” menu when installed and enabled. I developed this plug-in to address the absence of this feature in Audacity. Usage The plug-in acts on the track that has … Continue reading Remove space between clips

Stretching audio to length

Audacity includes an excellent “Change Tempo” effect which can stretch the length of the selected audio without altering the pitch. The effect includes the ability to specify the required new length, but this option is not available when using the effect in a Macro, or with Scripting. Setting the target length in a Macro Audacity … Continue reading Stretching audio to length

Steganography and “Silent Subliminals”

“Steganography” from the Greek stegan├│s (concealed) and graphia (writing), is the practice of hiding information within another message or physical object. It could be described as a form of “hiding in plain sight”. There are several different stenanogrphic techniques relating to audio. This article, and the associated plug-in uses one specific technique called Amplitude Modulation … Continue reading Steganography and “Silent Subliminals”

De-Clicker and De-Esser

The De-Clicker and De-Esser plug-ins are popular with some audiobook authors. The purpose of the De-Clicker is to remove mouth clicks and similar clicky sounds from the recording, while De-Esser is for reducing excessive sibilance (hissy “s” and “shh” sounds). These plug-ins have horrible code and are only available on the understanding that there is … Continue reading De-Clicker and De-Esser

Editing and Overwriting an Audio File

One thing that is quickly learned about Audacity, is that it is NOT a DAW* (digital audio workstation), and is NOT a wave editor. It is a full featured multi-track audio recorder and editor. When “opening” an audio file for editing, the file itself is never modified by Audacity – the audio data is copied … Continue reading Editing and Overwriting an Audio File