Lesson 11

Basic Audio Editing
We have already addressed MIDI editing earlier in this tutorial and in many ways editing
Audio Regions in Logic is quite similar. The following tutorial will show you just enough to "get the job done". But editing audio is an ongoing learning process and I encourage you to use Google, ask questions, and learn, learn, learn!
I have created a Logic project with some audio regions.
There are two methods of editing audio in Logic
Sample Editor
Arrange Window
I prefer to work in the
Arrange Window when editing audio so I will take you through some basic audio editing via the Arrange Window
When you are editing audio, you really need to expand your audio track so that you can make adjustments and edits. You can start by placing your mouse on the
Lower Left Hand Corner of the Track Name until it turns into a pointing finger.
You may then grab the track and expand it downward to make it larger.
You may also use the
Sliders located on the lower right hand side of the Arrange Window to adjust track size.
Adjusting Track Length
To adjust the length of a track, click on the
Track Region to highlight it, place your mouse on the left or right side of the region and click and drag to shorten the track.
REMEMBER: Logic uses NON Destructive Editing. This means that your audio is still there. It is just not being accessed by Logic. You can always undo any edit that you make!
Cut, Copy, Paste, Delete, Etc.
This is
Exactly the same as MIDI editing. We already went over that.
Split By Locators, Split By Playhead
When you are editing audio it is sometimes useful to split an audio region into smaller segments. You can to this using two methods.
Split by Locator.
You do this by selecting the audio region you want to split by setting the
Cycle Region using Cycle.
Use the
Cycle Ruler to select the portion of audio you want to split.
Make sure that you click on the
audio region so that it is selected.
Notice that I have set the
Cycle ruler to the section of audio that I want to split and have clicked on the audio region to select it (the name bar has turned black).
Now locate the
Split By Locators icon located at the top of the Arrange Window and click on it.
You will now see your audio region split by cycle locator.
This method allows you to edit the track as separate audio regions.
Split by Playhead you follow the same steps outline above except that you don't use the Cycle Ruler. You place the Playhead where you want to split the audio and then click on the Split By Playhead icon.
Once you have made your edits, you may want to
Merge the split regions back into a single region (less wear and tear on your hard drive as Logic is only looking for a single audio file). To do this.
Shift-Click the audio regions that you want to merge,
Select the
Merge icon at the top of the Arrange Window and click on it.
Your separate audio regions will now be merged into a single audio region.
Muting An Audio Region
Once an audio region is split, you can use the
Mute Tool to mute the split region.
Select the region that you want to mute by clicking on it.
Hit the
esc key on your computer keyboard and select the Mute Tool
Your cursor will now turn into an
M for mute.
Click on the region that you want to mute and it will be grayed out.
To undo a muted region, just click on it again with the
Mute Tool
Hit the
esc key twice to de-select the Mute Tool.
Audio Editing Tools (A Brief Overview)
Hitting the
esc key on your computer keyboard while in Logic will provide you with a menu of Audio Editing Tools. You will be using these a lot when editing your audio tracks.
Solo Tool and the Eraser Tool function just like the Mute Tool. Select the tool and click on the region that you want to change.
Glue Tool can be used to merge two regions together.
Hit the
esc key on your computer keyboard and select the Glue Tool.
Your cursor will now turn to a tube of glue.
Click on the first region that you want to merger to select it.
Shift-Click on the region or regions that you want to glue to your selected region and the Glue Tool will now merge the regions.
Zoom Tool allows you to Zoom a region in or out. This tool functions a little differently in that you have to Click and Drag and area to zoom it out.
The following is an audio track Zoomed out using the
Zoom Tool.
To return to
Normal View, simply click the region again with the Zoom Tool.
Text Tool allows you to change the name of the text in an audio track.
Select the
Text Tool.
Click on the text that you want to rename in the
Arrange Window
Type in your new name and hit
return on your computer keyboard.
Your new text will now appear in the audio file name in the
Arrange Window.
Note: This will not change the name of the original audio file as it appears in the Media Bin.
Notice in the picture above that although I changed the name of my audio track to
Bass Grove 1 (sorry about the misspelling of Groove) the original audio name Cool Upright Bass remains the same in the Media Bin.
Fade Tool
There are times when you may be joining two audio loops together and you hear pops, or clicks during the playback. This may also happen at the end of a loop or region as well. Using the
Fade Tool is a good way to solve this problem.
In the example below, I am going to join two audio regions together.
I will be using my mouse to drag the two closer, until they form a continues audio region.
Logic defaults to
Smart Snap mode (located on the top right hand side of the arrange window.
In this mode, it may be hard to get the two audio regions to slide together. Switch to
QF Mode or Sample Mode for a finer drag.
Now that I have combined my two audio regions, I have noticed a slight pop occurring between them.
Hit the
esc key on your computer keyboard and select the Fade Tool.
Place your cursor on the upper right hand corner at the end of your first audio region, and drag to your left and you will see a fade appear.
Repeat the process for the second audio region. You should see something like the picture below:
The pops or clicks, should now disappear!
To view a brief tutorial on using the Fade Tool, click on the following link:
Clip 16

Track Volume and Panning Automation
You may also automate
Track Volume, Panning, Solo, and Mute functions in the Arrange Window.
Make sure that your audio track is expanded by pulling down on the left-hand corner of the track name in
Global Tracks.
Hit the
A key on your keyboard and you will now see the following appear under the track name:
Click on
Volume to view another pull down menu.
For this example we are going to select volume. You will now see a line appear reading
0.0 dB at the top of the audio Region in your Arrange Window
Let's add a
node by clicking on the line. Notice that the line will now turn yellow.
I wan to create a volume change at the beginning of the track. I am first going to click on the line again to create two more
nodes. This is the area where I want to create my volume change.
I can now grab any of the
Nodes to create a volume change up or down.
When you play back the track, you can see the fader move for that track in the
Mixer window.
If you select
Panning, Mute, or Solo, the process is the same.
To view a brief tutorial on creating automation in Logic, click on the following link:
Clip 17
Logic Project 11:
Create a new Logic Project and add a couple of audio tracks. These could be loops, or recorded tracks. Add some Volume, Pan, Mute, and Solo automation to the tracks.

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