1. Home
  2. Electronics & Gadgets
  3. Radio

How to Edit a Music File - Part 4 of a Free Online Course

Lesson 3

By Corey Deitz, About.com

Today we’re going to learn how to edit a music file. To begin, open up Audacity and then download these three .mp3 files to a directory you will remember:

StarsAndStripesShort.mp3
StarsAndStripesShortEdit.mp3
StarsAndStripesShortEditFrontToEnd.mp3

When you have done that, open the StarsAndStripesShort.mp3 in Audacity. The file contains a short version of the famous “Stars And Stripes Forever”. Play the audio.

Now, open the second file, StarsAndStripesEdit.mp3 and play it. You’ll notice I have extended a portion of it and repeated a few notes right at about 30 seconds into the files. I did this by selecting, copying and then pasting a small portion of the files. Just like editing voice, you look for a pronounced area to cut or in this case, copy. If you tried to write out the area I copied, it might look like this:

da-dutto-dutto-da---da-dutto-dutto-da---da-dutto-dutto-da---da-dutto-dutto-da--

Find the Beat

It’s important to find the beat with music and always edit on the beat. Often, in music cuts, drums will easily let you find a beat to edit with. The more complicated the music, the closer you must examine your area to edit to insure that whatever you are cutting out (or copying and pasting) will leave the rest of the piece “in beat”.

If you miss the beat, even a little bit, it will be noticeable. As a further example, open the third file, StarsAndStripesShortEditFrontToEnd.mp3. In this edit, I have edited the very beginning of the music piece to the very last note. Notice how the beat continues. To see this more visually, play the piece and tap your finger on the beat. You’ll see you are in perfect rhythm.

Editing on the beat is the key to editing music. Now, open up StarsAndStripesShort.mp3 and experiment. Either try to duplicate what I have done or create your own new edits.

Explore Radio

About.com Special Features

Family Tech Center

Stay connected and entertained with reviews on tips on the latest HDTVs, cellphones and more. More >

How to Buy a BlackBerry

Sleek and trim or loaded with extras? Select the right smartphone for your lifestyle. More >

  1. Home
  2. Electronics & Gadgets
  3. Radio
  4. Fun Radio Things To Do
  5. Learn To Edit Audio
  6. How to Edit a Music File - Part 4 of a Free Online Course>

©2009 About.com, a part of The New York Times Company.

All rights reserved.