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1001 Uses of Ableton Live's Utility Device - Part 1

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This post is part of a series called 1001 Uses of Ableton Live’s Utility Device.
1001 Uses of Ableton Live's Utility Device - Part 2

At the bottom of Ableton Live's device list lies the Utility device. At first glance, the device doesn't seem to be so useful to users compared to other Ableton Live devices. The truth is, thought, that the Utility can perform some very useful tasks, indeed. Let's have a look at some of them.


Mute

The Mute button simply silences the incoming signal when enabled. However, since the Utility can be placed anywhere in a signal chain, it's mute function can be used to cut the input of a delay line or reverb without turning off the output of these devices.

A Utility device with Mute activated, placed before a Ping Pong delay device.


DC Switch

The DC switch filters out DC offsets and extremely low frequencies that are far below the audible range. It will only have a sonic effect if a signal contains these frequencies and is
processed after Utility with nonlinear effects such as compressors or waveshapers.

A Utility device with DC switch activated.


Gain

The Gain control adjusts the level of the input signal +/- 35 dB. The presence of the Gain control is a very important one here. It allows the user to use volume automation on a particular channel in a more efficient way than using automation on the volume control. Imagine the scenario where you created volume automation on a particular channel through the channel volume control. It would be extremely difficult to adjust the overall volume of that channel after all volume automation has been created. Instead, volume automation can be created on the actual Utility Gain control and the Track volume control can be left alone to be used for more traditional mixing duties. If more drastic volume automation changes are needed, two or more Utility devices can be easily grouped to an Effect Rack.


Channel Mode Chooser

The Channel Mode chooser allows selective processing of the left and right channels of a sample. If, for example, Left is selected, the right channel is ignored and the left channel
appears on both outputs. This is especially useful if you have a stereo file that contains different information on both channels and you want to use only one. Channels can also be swapped by selecting the Swap channel mode.


Panning

The Panorama chooser pans the signal anywhere in the stereo field and acts as a panning control.


Width Control

The Width control acts as a continuous mono to stereo controller when set from 0 to 100 percent. Values beyond 100 percent emphasize the stereo or "out of phaze" components of a signal and at 200 percent the output contains only the difference between the left and right channels. If either Left or Right have been chosen in the Channel Mode Chooser, the Width control has no function and is therefore disabled.

Let's see an example. It might be useful to use your headphones so that you hear the difference.

The first is the original audio file.

Now, listen to the same file as mono with the Width knob turned all the way to 0 percent.

Finally, listen to the same file with the Width knob turned all the way to 200 percent.


Left-Right Phaze

Finally, there are the Phz-L and Phz-R switches at the bottom of the device. These two switches invert the left, right or both channels of an audio signal. They can be used to fix the incorrect polarities of microphones or to create stereo special effects.

In Part 2 of this tutorial we are going to examine a few more practical examples using the Utility device that may come in handy in your production.

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