All of the steps that we've done previously are the start to performing a mix. Now we can downmix. Downmixing is the process of combining many tracks of different types of audio and making it into a single recording. Like the previous examples, we are mixing speech with background music, other audio, and sound effects. You could even add instruments.
Just remember that when you export as one audio file format—in this case, it has been mixed—you won't be able to "break" apart the pieces anymore. This is why we recommend that you keep your Audacity project files!
We explained the export process in Chapter 6, Saving Projects and Exporting Podcasts, but the process is given in short here, so that you can make a mix of your new podcast, with all its additional features.