PreSonus Blog

Monthly Archives: May 2018

Friday Tip: The Imaging Phaser

I’ve been experimenting with phasers lately, and found some interesting tricks. This week we’ll create a mind-melting phaser-meets-stereo-imager. Next week, we’ll create a super-customizable phaser with continuously variable peaks and notches, so you can obtain specialized vintage sounds like the original Electro-Harmonix Polyphase.


You can reproduce the sound of a phaser with several tracking notch filters, so instead of using a phase shifter per se, we can use the Pro EQ.

The five parametric stages are set up as notch filters one octave apart, with a sweep range of four octaves. The FX Chain Frequency control sets their frequencies. If you download the multipreset, I highly recommend reverse-engineering it to see how to control multiple filter stages from a single knob.

The FX Chain Q control sets the phase effect’s resonance/sharpness by altering the Q for all five stages simultaneously. Broader Q settings reduce volume, with a less focused, gentler phasing sound. High Q settings are sharper, with a more pronounced phasing effect.

But the secret ingredient here is splitting the signal path into the Pro EQ-meets-phaser and the Mixtool. Inverting the phase for the Mixtool’s left and right channels cancels out any remaining dry signal from the Pro EQ “phaser,” which accents the phasing sound.


If you compare this to the sound of the PreSonus Phaser, it’s like the PreSonus Phaser supplements the audio with the phasing effect, while the Imaging Phaser replaces the audio with the phasing. They both have their uses.



The real mind melt happens if you run program material through the Imaging Phaser and then click the Image Xpand button. This swaps the right and left channels, which because they’re out of phase, creates insane imaging effects. The first time I tried this was on a laptop, and clicking on Image Xpand made it seem like the speakers were located somewhere else in the room. The effect is less dramatic with signals that don’t contain a lot of stereo information and ambiance, or on headphones, but it still makes a difference.



The first part showcases the phaser effect. After the word “Reunited” appears, you’ll hear an unprocessed version of the track for four measures. After that, it’s Image Xpand time, with the FX Chain control being varied to alter the sound somewhat.


And for those without the patience to build their own Imaging Phaser, here’s an FX Chain multipreset you can download. Have fun!


Click here to download the multipreset! 


Friday Tip: The Project Page Meets Bluetooth

The Project Page Meets Bluetooth
After mastering a project, I like to check out its suitability in a variety of contexts by listening to it over and over again—in the foreground, in the background while people are talking, while the dishwasher runs, whatever. This can be very instructive when trying for masters that are transportable not just for different playback systems, but for different listening conditions.

And that’s when it hit me: Bluetooth! I have IK Multimedia’s iLoud portable Bluetooth speaker, and carry it around the house to listen to music that’s streaming from a mobile device. Why not carry it around while listening to a mastered Project? Or even loop a Song, so I can get lyric ideas while the instrument tracks play in the background? Or listen over other Bluetooth devices, to get an idea of the type of sonic violence the music will have to endure at the hand of consumers?

Okay, so I was a little slow to tumble to this…but reality checks can indeed be useful, and I hope you find this tip useful as well. We’ll do the Mac first, and then Windows.

1. Choose Apple menu > System Preferences > Bluetooth.
2. Turn on Bluetooth at the Mac if it isn’t already.
3. Turn on your Bluetooth playback device, and enable pairing for it (usually by pressing a pairing button on the device).
4. When the Connection Request appears, click Connect.

5. The Bluetooth window will show the device as connected.
6. In Studio One, choose Preferences.

7. For Playback Device, choose your Bluetooth playback device.

1. Choose Settings > Devices > Bluetooth & other devices.
2. Turn on Bluetooth in Windows if it isn’t already.
3. Click on Add Bluetooth or other device, then choose Bluetooth when Add a Device appears.
4. Turn on your Bluetooth playback device, and enable pairing for it (usually by pressing a pairing button on the device).

5. Click on the device name to connect it. Once it’s connected, click on Done.
6. In the Windows search box, type Sound and then select Sound Control Panel.

7. Your Bluetooth device should appear in the list of potential playback devices. Click on it, and then click Set Default to make the Bluetooth device your default playback device.
8. Now that Windows is set up, open Studio One, and choose Options. Select Windows Audio for your Audio Device, and you’re good to go.

Friday Tip: Pedal Power

Here’s a follow-up to last Friday’s tip on creating an authentic sounding wah with the Pro EQ. That’s fine, but what if you want to control it with a footpedal instead of a mouse? Keep reading.

First, you need a pedal that generates MIDI data. There are several options. Most keyboard controllers have an expression pedal input. Plug an expression pedal into this, and the controller will likely output controller 11 over MIDI. You may be able to assign this to a different controller number (see your hardware’s documentation); however, this probably won’t be necessary.

If you don’t have a keyboard (or floor multi-effects with a pedal that produces MIDI out), then check out the Pedal Controller, a small box from MIDI Solutions. This accepts an expression pedal input and outputs your choice of MIDI controllers. (For do-it-yourselfers, the circuit board is small enough you can probably mount it in a pedal if you want a stand-alone MIDI pedal.)

Assuming you’re using a keyboard with an expression pedal input, you now need to add the control surface to Studio One if you haven’t already. Call up the Options menu, and add the keyboard. Here, I’ve added The Laboratory controller from Arturia.

Next, you need to map the pedal. Go to the right-hand side of the Control Link menu and select the device to open the Device Control map. Note that The Laboratory is selected as the device. 

If you can’t see the right section of the Control Link menu, then your monitor resolution is probably 1600 pixels wide or less. Another way to open the Device Control map is to open the Mix view [F3], and then click on External in the Console navigation column (to the far left of the Console). This opens the External panel; double-click on the desired device in the External panel.

Now click on the Device Control’s MIDI Learn button, and then move the footpedal. As if by magic, Control 1 appears, with its controller number assignment.

Now whenever you want something in Studio One to react to the footpedal, you just select Control 1. You can also rename this—perhaps not surprisingly, I changed Control 1 to Footpedal.

Now let’s suppose you want to control the Pro EQ Mid Frequency (Freq) control, which we used last week to vary the wah frequency. It’s simple:

  1. Vary the Freq control.
  2. Move the pedal.
  3. Right-click on the Freq knob.

Now choose the desired assignment—in my case, “Assign MF-Frequency to Footpedal on the Laboratory.” Move the pedal, and it will change the frequency.

However, you probably don’t want the pedal to cover the full frequency range, but just a typical wah’s range so you have more precise control. We have a solution for that, too. Instead of right-clicking on the knob and assigning it to the footpedal, assign it to a Channel Macro Control, like Knob 1. Open up the Channel Editor, right-click on Knob 1, move the knob, next move the pedal, and then choose “Assign MF-Frequency to Footpedal on the Laboratory.” (By the way, you can assign pretty much everything in Studio One to a controller using the right-click + move controller + choose assignment protocol.)

Now you can use the Transition settings graph to limit the pedal’s range. Alter the curve shape to a response you like—it doesn’t have to be linear—or even change the “sense” of the pedal travel so that pulling back on the pedal raises the wah frequency.

Once you’ve done this kind of assignment a few times, it will become second nature and you’ll be able to take advantage of pedal power for increased expressiveness. So put your foot down, get on the good foot, or put your best foot forward—the choice of clichés is yours!

Using the FaderPort 8 with Neil Zaza


Neil Zaza is a career guitar virtuoso who recently took some time out of his schedule to discuss his personal workflow with the PreSonus FaderPort 8 controller. He covers everything from set up to plugins to automation, he goes deep and covers it all! For your enjoyment, we complied the full series into one playlist here. Check it out and enjoy!

For more on the FaderPort, click here! 

For more on Neil, click here!