Spectrum Processing
Spectrum processing can be used to process short regions of up to 60 seconds offline. This type of processing can be used to reduce, remove, or replace unwanted sound artifacts in the audio material with great precision.
To apply spectrum processing to regions over 60 seconds, use the Rectangle Selection tool and activate Master Section in the Processing Algorithm menu.
For example, you can replace a part of a live recording that contains an unwanted noise such as a mobile phone ring tone, with a copy of a similar region of the spectrum that contains a clean signal.
In general, the spectral copy/paste combination gives the best results if the source and destination regions are properly chosen.
First, you have to define a time/frequency region. Once a region has been set, you can use the spectrum processing functions. Filtering operations allow you to filter the selected region in various ways. Copy operations allow you to copy the spectrum region and apply it to another region.