May 19, 2016

If you want to do some editing of audio files, download the free application Audacity.   Audacity has a range of sophisticated options.   You can easily export clips of audio files, record new files, and add tracks to existing files.   A good example of Audacity's editing abilities is the Noise Reduction tool in the Effects menu.  It allows you remove background noise from a recording, such as tape of a conversation made outdoors.  


You first need to identify a portion of the recording which only contains the background noise you want to remove.




 Select that area, and then go to Effects . . . Noise Reduction.   A dialog box will open.   Click where it says "Get Noise Profile".    





Now select the full range that you want the background noise removed from and go back to Effects . . . Noise Reduction.     Accept the default setting and click OK.  You should see a noticeable reduction in the background noise.















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