Dialogue in Adobe Audition

Audition can be used to edit and polish recorded voice tracks. By using noise reduction methods, issues such as background noise can be reduced or eliminated. The image below shows how a voice recording will appear in Audition. The yellow areas indicate the loudest noise, and the purple indicates quiet noise. In this example, the yellow would be dialogue, and therefore should be mostly avoided to prevent strange disturbances and changes in the voice whilst editing.

An easy problem in a recording would be something like a car horn during a moment of no dialogue. In this situation, the 'Noise Reduction' would be used by paintbrush selecting the problematic area and manipulating it through 'Noise Reduction'. This method is more challenging and delicate when a voice overlaps the problematic area.

Continuous noise within a recording can be removed manually if the clip has an area of no dialogue. This area can be marquee'd and sampled, Audition can then extract and limit how much noise can be heard. This method isn't as effective as 'Adaptive Noise Reduction'...

'Adaptive Noise Reduction' is more automatic, and is effective at removing continuous noise from an entire clip, rather than just a selected area. This tool is especially useful as it removes the worry of altering the speech. 'Adaptive Noise Reduction' is ideal for removing the quiet hum of common recording-space tech such as computers.