Bouncing Multiple Bus Channels

This is very simple. However, it requires some basic setup and understanding of that setup.

Step 1

First, the command you need is File ➤ Export ➤ n Tracks as Audio Files. It bounces all the currently selected Tracks as a separate Audio File. The command automatically detects how many Tracks are currently selected. In my screenshot below, I have two Tracks selected so it says "2 Tracks as Audio Files".

Step 2

This command also applies to Aux Tracks, even if they don't contain any Audio Region on their Track. If you select an Aux Track, then the Export bounces the signal on that Aux Tracks, which means all the Tracks that are routed to that Aux Track. In my screenshot, I have two Aux Tracks selected, the Aux Group where all the Strings are routed to and a Drum Group where all the Drum Tracks are routed to. If I use that export command, I end up with two audio files, the Strings Group and the Drum Group.

Step 3

This is actually a step that you have to do before step 2. You have to make sure that the Aux Channel Strip is assigned to a Track so it shows up in the Tracks Area because that's where you select it (not in the Mixer Window). However, when you create an Aux Channel Strip, it is not automatically assigned to a Track. It only shows up in the Mixer as an Aux Channel Strip. Just select that Channel Strip, right-click on it and select the command "Create Track" from the Shortcut Menu (or use Key Command ctr+T). Now an Aux Track shows up in the Tracks Area, which has the positive side effect that you can actually position its corresponding Aux Channel Strip on the Mixer by position it in the Tracks Area.

Step 4 (optional)

This is a step that I highly recommend. WIth the workflow you are describing, creating Aux Groups of your musical instruments (Drums, Strings, Keys, etc), I would create Summing Stacks. Regarding the routing it is the same, however, it has the advantage that the groups are organized in these show/hide units that makes it very easy to work on, especially on bigger configurations with lots of Tracks. You can easily move the Main Track of a Summing Stack and the entire section moves along with it.

You can even create those Summing Stack after you created your Aux Groups already. Just select the Tracks in a Group and use the Create Summing Stack command. This saves you the extra step of creating an Aux Track because it creates the Aux Track for the existing Aux Channel Strip and makes it the Main Track of the SUmming Stack.

If you are not familiar with Track Stacks, I explain them in great details in my Graphically Enhanced Manual "Logic Pro X - How it Works". I explain the important difference and relationship between a Track and a Channel Strip, in case you are confused with the terms "Aux Track" and "Aux Channel Strip" that I used in my explanations above. THese are two different objects representing the same "thing".

On my screenshot, I use one Group as a Summing Stack and one as regular Tracks with an Aux Track.

Hope that helps

EdgarR. -

(Author of the "Graphically Enhanced Manuals")

<Links Edited by Host>

You can select any Track in the Tracks List to export it as an individual audio file. Usually, Aux Channel Strips don't have a Track assigned, so the only thing you have to do is create a Track for an Aux Channel Strip (select the Channel Strip and use the Key Command ctr+T).

That does not work, because now you are talking about exporting to Multi-channel Audio. Logic can bounce to Multi-Channel Audio Files (depending on your configuration), but it is a specific surround format of a multi-channel signal, that means, the individual audio channels in that file are formatted, labled (i.e. L, R, Ls, Rs, C, LFE).