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A non-linear editing system (NLE) is a video editing (NLVE) program or application, or an audio editing (NLAE) digital audio workstation (DAW) system. These perform non-destructive editing on source material. The name is in contrast to 20th-century methods of linear video editing and film editing.
Audio editing software typically offer the following features: The ability to import and export various audio file formats for editing. Record audio from one or more inputs and store recordings in the computer's memory as digital audio. Edit the start time, stop time, and duration of any sound on the audio timeline.
Noise reduction techniques exist for audio and images. Noise reduction algorithms may distort the signal to some degree. Noise rejection is the ability of a circuit to isolate an undesired signal component from the desired signal component, as with common-mode rejection ratio.