Spectrum Processing
Spectrum processing can be used to process audio regions of up to 20 minutes offline. This type of processing can be used to reduce, remove, or replace unwanted sound artifacts in the audio material with great precision.
For longer audio regions, you can also apply Master Section processing. To do so, use the Rectangle Selection tool, and activate Master Section in the Processing Algorithm menu on the Spectrum tab.
For example, you can replace parts of a live recording that contain unwanted noise, such as a mobile phone ringing, with a copy of a similar region of the spectrum that contains a clean signal.
In general, the spectral copy/paste combination delivers the best results, provided that you have chosen the appropriate source and destination regions.
After defining a time/frequency region, you can use the spectrum processing functions.
Filtering operations allow you to filter the selected region in various ways.
Copying operations allow you to copy spectrum regions and to apply them to other regions.