Jake Hyatt describes how to overlay audio in Reaper. He opened the Media Explorer to easily listen to sound effects without having to use a separate program. He dragged sounds from the library onto different tracks to create a dialogue. Some clips were too long, so he shortened them by adjusting the edges until the clips were the right length. Finally, he added a fade to the second track by adjusting the corners to gradually increase and decrease the volume of the audio over time.