In music production, mixing your edited tracks down to a final track for export is necessary for a number of reasons. While mixing and rendering your podcast tracks in Audacity isn’t always necessary, it’s recommended. For one thing, It gives you a look at the final waveform before it’s exported. Other benefits include more consistency for things like loudness leveling and other mastering techniques. But there’s one caution you need to be aware of if you use mix and render in Audacity.