In other DAWs, buses are essentially their own channel type. Pro Tools and Logic Pro are two DAWs that work in this fashion. You can then assign the output of a channel to a mix bus that you wish to send it to, and additionally assign that bus as the input to another channel. In some cases buses exist explicitly, independent of any channels. Generally speaking, there are a few different ways that buses are implemented inside different DAWs. Unfortunately there’s not room here to go into detail for each DAW, but here’s the general concept, followed by some links to videos that show the process for some of the most common DAWs. How you go about creating a mix bus-and indeed even the wording used to describe it-is going to be a little different in every DAW. We’ll look at these in more detail shortly, but first let’s look at how to create a mix bus. There are at least two other ways to utilize mix buses that can significantly help with organization and control in your mix: subgroups and aux channels.

However, the master bus isn't the only mix bus you can create in a mix session. The master bus could also include things like EQ and compression for tonal shaping and “glue.” More on this later. This could be as simple as adjusting the overall level to properly utilize headroom and avoid clipping-although you shouldn’t get in the habit of using your master bus fader to control your monitor gain, rather, use the level control on your interface. The master bus gives you a way to make final adjustments to your full mix before the audio leaves your DAW. It’s also typically what’s routed to your speakers or headphones. Ultimately this is where your entire mix is funneled down to two channels and it’s what’s used to create the final stereo export, render, or bounce. It’s also usually a stereo bus-unless you’re working in surround-with left and right channels. It’s almost always created by default and is where any new channels you create in your DAW will be routed. The most common mix bus is the main stereo bus, also called the “2-bus,” or 'master bus.' If you only have one bus in your mix, it’s this one. What’s the difference between a mix bus and a master bus?

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