Fixing Sound That Only Plays In One Speaker

One question that I get quite often is, “My recorded sound is only coming out of one speaker. How do I fix that?” This is usually a result of recording a mono mic into a stereo recorder or camera. The fix is very simple in Adobe Audition and most other audio editing apps (like Audacity which is free). This same fix also applies to cases where you recorded two mics into a recorder and one mic only comes out of one speaker, and the other mic only comes out of the other speaker.