If we listen to a before and after, starting at 3:18 in the video clip that accompanies this tutorial, it sounds pretty quiet without the volume adjusted up, but when we boost the volume by 8 dB, we ...

Whenever you apply noise reduction you want to check for two things: First, you want to visually check that the fuzziness or bushiness around the center line is gone or mostly gone (see Figures 13 and ...