The symbol for Digital Audio is a microphone. Digital Audio is one of our newest modules. In it, you will learn about recording technologies like microphones, learn about sound file formats and how they are different from each other, the different qualities of MP3S and how they are different, and what makes a good recording. You are then given a commercial that has no sound. Using Sound Forge Studio, you will write and record a script, record sound effects, and add music to the commercial.