PreSonus Blog

Friday Tip of the Week – Trolling for Slices

So there you are, with your shiny new Impact XT virtual instrument. You want to populate the pads with some fun drum sounds, and although you like the included kits, you’re itching to get creative and come up with some kits of your own. Fortunately, it’s easy to use Audioloops to populate your Impact XT with a custom selection of drum sounds.

Open the Browser, and under Loops, look for files with the .audioloop suffix. The reason why .audioloop files stretch elegantly is because the loop is cut into slices, with each slice representing an individual “block” of sound—kick, snare, clap, kick and cymbal hitting at the same time, snare and high-hat hitting at the same time…whatever.

When you expand an .audioloop, you’ll see each slice listed individually. Some have only one or two slices, but others—for example, the Combo Beat loops under Electronic > Drums > Loop (Fig. 1)—are rich sources of slices.


Figure 1:  The Browser’s Loop tab is loaded with slices, just waiting to be used with Impact XT to create custom kits.

Next, open up Impact XT. To audition the slices, toward the bottom of the browser turn off the loop and metronome options, select a slice, and then click on the Play > button. Click on various slices and when you hear something you like, drag it over to an Impact XT pad (Fig. 2). You won’t have to click the Play button again to audition slices until after you drag a slice over.


Figure 2: Drag slices over to Impact XT pads.

The real fun begins when you start to use Impact XT’s sound-shaping options. For example in Figure 2, one of the kick slices has been dropped in pitch, truncated, filtered, and given a new Amp decay setting to sound more like an explosion. Note that the pad’s name will be the same as the .audioloop, so if you’re using multiple slices from the same .audioloop, rename the pad to avoid confusion (right-click on the pad and choose Rename).

And remember, you’re not limited to dragging over slices from the Browser—you can split any file in the Edit window at the Bend markers, and drop those slices into Impact XT.

Sure, Impact XT comes with a lot of preset, ready-to-go kits when you just want to load something and start grooving. But you might be surprised how doing a little mixing and matching with the Browser slices can create something new and different—and each new pad sound is only a click + drag away.




It’s #PreSonusFamFriday with Alexandra Medina!

Bringing back a blog favorite this season… #PreSonusFAMFriday! If you’re not familiar with the series, catch up here.

Up first is Alex Medina! She’s in charge of making sure everything gets paid for here at PreSonus. She’s also in charge of  baking up all kinds of tasty treats for the office. We are coworkers but we’re also her certified taste testers and let’s just say, Betty Crocker WHO?!

Here’s more on Alex and her favorite PreSonus product the Eris 3.5s!

How long have you worked for PreSonus?
8 Months.

What’s your official job title? 
Accounts Receivable and Credit Manager.

What do you love about your job? 
I love the people I work with. Also, I pretty much get to talk to everyone we do business with and its awesome when they share the latest things they are working on with our products or tell me stories about how our products made their lives easier. I enjoy checking out the youtube links they send. I get introduced to all kinds of new music.

What was the first 8 track, cassette, CD or digital download you purchased?
Salt-N-Pepa “Push It.” Odd choice maybe but I heard it in a movie and it just stuck so I downloaded it same day. Remember when ring back tones were a thing? This was totally mine.

Who’s your go to band or artist when you can’t decide on something to listen to?
When that happens I turn on Spotify and listen to the new releases. You never know what you will come across.

What’s your go to Karaoke song?
Journey, “Don’t Stop Believing.”

Everyone has a side gig, what’s yours? OR when you’re not at PreSonus, what are you up to?
I’m in the Air National Guard so sometimes I’m working there., or I’m off on some new adventure with my son. Toddlers are never boring!

What instruments do you play?
I dabble in rock band… the drums… on easy. Plus it’s color coded so…


Why did you choose the Eris 3.5s as your favorite? 
They are very satisfying for the size and price. I just needed some small speakers that wouldn’t clutter my desk and these work great. Almost too well, the sound is crystal clear no matter how high I turn them up, which usually isn’t the case with speakers this size. I feel people always like to talk about the big flashy and fancy products, so I wanted to give the little guys some love too!

Anything else you want to share? 
Ummm PreSonus rocks and GEAUX SAINTS! #WHODAT



Learn more about one of the best selling monitors on the market, the Eris 3.5s HERE!

Friday Tip of the Week – EZ Squeez: the One-Knob Compressor!

Sometimes you just want a compressor that’s quick and easy. Maybe you’re tracking and need to compress the vocals, or hear what the bass will sound like when you add some compression on mixdown. But you know what happens—you adjust the threshold, and then the ratio, but now realize you need to re-adjust the threshold, which means the output gain needs adjusting…and maybe the knee…

If you have a bunch of ready-to-go presets, great. But here’s another option: The EZ Squeez compressor. It uses an FX Chain macro to alter six compressor parameters at once, so that a single knob sweeps from no compression, to some compression, to compression that’s more like a guitar sustainer stompbox. Although there’s a downloadable preset, I’d recommend reverse-engineering this to learn the power of the FX Chain’s Macro Controls. The principles used in this FX Chain apply to many other processors.


Figure 1: Three different Macro Control settings.

Figure 1 (top) shows the compressor settings with the EZ Squeez knob turned all the way counter-clockwise (minimal compression). As you turn up the EZ Squeez control, the Ratio, Release, and Gain increase, while the Threshold, Knee, and Attack decrease. The middle image shows the EZ Squeez knob turned up about 60% of the way. Turned up all the way, the parameter values become more extreme, as shown in the lower part of the screen shot.

Figure 2: (Top) Macro Controls parameters and (bottom) Macro Controls interface.

Figure 2 shows the Macro Controls. Rather than expose the control settings, it’s easier just to download the Multipreset, and then click on the curves for yourself. Note the curves on the Gain and Release parameters. Given that there’s only one node on the curve you can’t get too sophisticated, but these are close enough to give a fairly even response as you move the knob from fully counter-clockwise to fully clockwise.

Because compressors are so dependent on the input signal level, I did cheat on the “one-knob” concept and added an input level control. This allows trimming the input level so that it falls in the compressor’s “sweet spot.” There’s also a bypass button so you can compare the compressed and uncompressed sounds.

As to applications, you’ll probably find that EZ Squeez knob settings of 30% to 65% will work for a variety of signal sources. Past that point, the compressor gets into a more extreme territory that pumps mixed drums, and acts more like a sustainer for guitar. But it’s easy enough to find what works the best—just turn the knob until the compression sounds right. After all, that’s the whole point!

Download the EZ Squeez.multipreset




Friday Tip: Delay-Free Stereo from Mono

After a recent tip on how to extract two mono tracks from a stereo track, one of the comments asked for how to convert mono into stereo. Well, we aim to please…so here’s one option.

A common way to create stereo from mono is by duplicating the track, delaying one of the tracks compared to the other, and panning them left and right. However, this approach has two problems. First, you might not want a delay. Second, when you collapse the signal back to mono, there will likely be partial cancellation due to phase differences. The method we’ll cover here not only produces stereo imaging from a mono source, but collapses perfectly to mono. It works with pretty much any instrument, but is most effective with instruments that play chords (for example, try this on acoustic guitar—it works well).

Console Setup

Create two buses. One of these will become the left channel, and the other, the right channel. In your mono source track, create two pre-fader sends (one for each bus). Turn down the mono source’s fader.


Multiband Dynamics Setup


Insert a Multiband Dynamics into one of the bus inserts. Solo the bus with the Multiband Dynamics. Click on “Edit All Relative” and set the Ratio control to 1.0. This will set all bands to a ratio of 1.0, which converts the Multiband Compressor into a multiband EQ.

Play the track you want to convert to stereo. Solo each band in the Multiband Compressor, and adjust the frequency sliders to divide up the frequency response evenly over the five bands (the screen shot shows frequencies selected for dry electric guitar). Mute bands 1, 3, and 5.

Next, drag the Multiband Dynamics into the other bus’s Inserts slot. For this bus, mute bands 2 and 4 instead of bands 1, 3, and 5, then pan the two buses left and right. Now the frequency responses are equal and opposite for the two buses. Voilà! Stereo! (Note that you probably don’t want to pan the buses too far to the left and right, because the stereo effect will be unrealistically exaggerated—as in the audio example. But it does get the point across.)


We’re not done yet, though. The levels of the two buses will be fairly low because with only two or three bands, the output level will be down quite a bit. Turning up the bus faders may be sufficient to compensate, but if not, turn up the Multiband Dynamics processors’ master Gain controls (not the per-band Gain controls). Feel free to play around with the pan and Gain controls to achieve the desired sonic balance. Also, no law says you need to mute every other band. For example, you might want a bassier sound on the left by muting the three upper bands, and a brighter sound toward the right by muting the two lower bands.

Finally, note that when you toggle the master bus from stereo to mono, the sound collapses to mono without any funky phase interactions. Done!

PreSonus Interface Comparison Chart

UPDATED 8-17-18 to add new interfaces!

This might come in handy if you’re in the market for a new recording interface. Click the image below to download a convenient PDF to get a convenient at-a-glance look at I/O, sampling rates, connectivity methods, and more. Enjoy!



Studio Magic Suite Demo and Tutorials with Richard Gaspard!

Check out the great Studio Magic Suite Demo playlist from Richard Gaspard below. It features six videos that cover each plug-in available for free with the Studio Magic Plug-in Suite, like Klanghelm SDRR2tube, Brainworx Opto, Lexicon MPX-1, Maag EQ2, Output Movement, and SPL Attacker. ALL FREE when you buy a PreSonus interface or mixer… That’s over a $400 value!

Take a look at the whole suite here:


Learn more about the Studio Magic Suite here! It’s FREE and available right now in your My.Presouns account!

Friday Tip: Rotating Speaker Emulator FX Chain

A rotating speaker is an extremely complex signal processor (as most mechanical signal processors are—like plate reverbs). It combines phase shifts, Doppler shifts, positional changes, timbral variations, and more. And of course, Studio One includes the Rotor processor, which does a fine job of capturing the classic rotating speaker sound.

However, I’ve always felt that rotating speakers have a lot more potential as an effect than just emulating physical versions—hence this FX chain. By “deconstructing” the elements that make up the rotating speaker sound, you can customize it not only to tweak the rotating speaker effect to your liking, but to create useful variations that don’t necessarily relate to “the real thing.” What if you want a speed that’s between slow and fast? Or a subtler effect that works well with guitar? Or simulate the way that the horn spins faster when changing speeds because it has less inertia than the woofer? This FX chain provides a useful, more subtle variation on Rotor’s rotating speaker sound—check out the audio example—but the best way to take advantage of this week’s tip is to download the multipreset, roll up your sleeves, and start playing around.

Rotating speaker basics. There are two rotating speakers—one high-frequency driver, and one low-frequency drum. A crossover splits the signal to these two paths, so we’ll start the emulation by setting the Splitter to Frequency Split mode around 800 Hz. Here’s the routing.

The high-frequency and low-frequency paths each go into a Flanger to provide Doppler and phase shifts, and an X-Trem for subtle panning to provide the positional cues. Let’s look at the individual module settings.


The Analog Delay adds a 23 ms reflection for a bit of a room sound vibe, with some modulation to add a Doppler shift accent. Finally, an Open Air reverb (using the 480 Hall from Medium Halls) creates a space for the rotating speaker.

Knob Control. This was the hardest part of the emulation, because changing speed has to alter (of course) Flanger speed, but also the Flanger’s LFO Width because you want less width at faster LFO speeds. The X-Trem speed and Analog Delay LFO speed also need to follow the range from slow to fast.

However, the curves for the control changes are quite challenging because the controls don’t all cover the same range. Fortunately you can “bend” curves in FX Chains, but you can’t have more than one node. As a result, I optimized the knob settings for the lowest and highest speeds—besides, a real rotating speaker switches to either speed, and “glides” between the two settings as it changes from one to the other. An additional subtlety is that the high-frequency “speaker” needs to rotate just a little faster than the low-frequency one. Also, they shouldn’t track each other exactly when going from the slowest to the fastest speed because with a physical rotating speaker, the low-frequency drum has more inertia.

All these curves do complicate editing any automation, because you need to write-enable each parameter when you turn the knob. So if you need to change some automation moves you made, I recommend not trying to edit each curve—just try another performance with the knob.

Oh, and don’t forget to try this on instruments other than organ!



Listen here:

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Friday Tip: Smoother, Gentler Sidechain Gating

I’ve always been fascinated with using one instrument to modulate another—like using a vocoder on guitar or pads, but with drums as the modulator instead of voice. This kind of processing is a natural for dance music, and using a noise gate’s sidechain to gate one instrument with another (e.g., bass gated by kick drum) is a common technique.

However, the sound of gating has always seemed somewhat abrupt to me, regardless of how I tweaked a gate’s attack, decay, threshold, and range parameters. I wanted something that felt a little more natural, a little less electro, and gave more flexibility. The answer is a bit off the wall, but try it—or at least listen to the audio example.


Setup requires copying the track you want to modulate (the middle track below), and then using the Mixtool to flip the copy’s audio 180 degrees out of phase (i.e., enable Invert Phase). This causes the audio from the original track and its copy to cancel. Then, insert a compressor in the copy, and feed its sidechain with a send from the track doing the modulating. In this case, it’s the drum track at the top.



When the compressor kicks in, it reduces the gain of the audio that’s out of phase, thus reducing the amount of cancellation. However, as you’ll hear in the example, the gain changes don’t have the same character as gating.

You can also take this technique further with automation. The screen shot shows automation that’s adjusting the compressor’s threshold; the lower the threshold, the less cancellation. Raising the threshold determines when the “gating” effect occurs. Also, it’s worth experimenting with the Auto and Adaptive modes for Attack and Release, as well as leaving them both turned off and setting their parameters manually.

Using a compressor for “gating” allows for flexibility that eluded me when adjusting a standard noise gate. If you want super-tight rhythmic sync between two instruments, this is an unusual—but useful—alternative to sidechain-based gating.

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