EffectsTips

Help with specific effects

 * Amplify and Normalize to modify the track volume - when to use each one...


 * Change Pitch and Change Tempo - see SoundTouch


 * Change Speed


 * Click Removal - using Audacity's Click Removal, Draw Tool and other solutions


 * Compressor


 * GVerb - a reverb plug-in which was replaced from Audacity 2.0.4 onwards by a built-in Reverb effect. There are also alternative reverberation plug-ins which you can add to Audacity such as Anwida Light and Freeverb.


 * High Pass Filter - attenuates frequencies below a limit that you set, allowing through (passing) those above the limit. Can be used to reduce low frequency noise.


 * Low Pass Filter - attenuates frequencies above a limit that you set, allowing through (passing) those below the limit. Can be used to reduce high pitched noise.


 * Noise Removal - using Audacity's Noise Removal Effect and other solutions for removing steady noise

Accessing Effects with Shortcuts
You can use (or  on a Mac) to repeat the last used effect with those last used parameters. Audacity does not yet allow use of shortcuts to access frequently or recently used effects, but external macro programs provide a solution. See Accessing Effects with Shortcuts in Navigating Effects.

Chains in Audacity
Current Audacity allows a chain of multiple effects to be created and run as a batch process. Click to create the chain. Click to apply the chain to the current project, or to audio files. Chains can be applied to a selected track or region in the project, just as you can when running an individual effect. However, you cannot yet specify a region of audio for individual effects inside a chain. Therefore chains will always be applied to all of an audio file.

Where an effect does not remember its parameters or does not allow multiple presets to be saved, Chains provide a workaround where you can have a different chain for different parameters of that effect.