

To remove background noise based on threshold: Click Next to preview the file, then click Next again to apply the changes.In the Wizard menu, select the type of background noise you would like to remove.Click Cleanup > Noise Reduction > Noise Removal Wizard.

To remove background noise based on type of noise:

Click on your file to deselect the highlighted portion of your clip.Select Noise reduction from the menu, then select Spectral Subtraction based on Noise Sample.In the edit tab toolbar at the top of your screen, click Cleanup.

Click and drag your mouse to select a portion of dead air from your clip (a section that captures the background noise of your file).To remove background noise based on a noise sample: You can find links to other useful Open Source audio and audio-visual applications, that you can download and use, in the Audacity Wiki.There are many ways to remove background noise from your file in WavePad.Other Open Source Audio and Audio-Visual Applications You may copy, distribute, modify and/or resell Audacity, under the terms of the GNU GPL.To build Audacity yourself, download the source code.Although there are a number of sellers of Audacity software on ebay, Amazon, Microsoft Store and Apple Store, none of these sellers are affiliated to Audacity, and none have contributed in any way to the Audacity project.Source code and user manuals for some old versions are available on FossHub, as well as AppImages since version 3.0.3. For Linux, the appropriate version of Audacity for your operating system is usually included in your distribution’s repository.For macOS 10.12 (Sierra) and earlier, legacy versions of Audacity are available on the Legacy Mac downloads page.For Windows 7 and earlier, legacy versions of Audacity are available on the Legacy Windows downloads page.
