If you are working to get your audio track from a video clip, needing to craft an audio piece together, or needing to refine an audio track, Adobe Audition CS6 might be the easiest tool to use. At times the workspace can seem a bit overwhelming, but with a little work you can get used to it. Here is a link to an Adobe TV showing you all of the possibilities for what Audition can do. If you are trying to pull the audio from a video you can load it in Audition and then export the video as an MP3. In some ways this is easier than using Audacity and Premiere.