PreSonus Blog

Monthly Archives: August 2020

Why Overlap Correction is Totally Cool


Studio One’s Overlap Correction feature for Note data isn’t new, but it can save you hours of boring work. The basic principle is that if Note data overlaps so that the end of one note extends long enough to overlap the beginning of the next note, selecting them both, and then applying overlap correction, moves the overlapping note’s end earlier so that it no longer overlaps with the next note.

My main use is with keyboard bass. Although I play electric bass, I often prefer keyboard bass because of the sonic consistency, and being able to choose from various sampled basses as well as synth bass sounds. However, it’s important to avoid overlapping notes with keyboard bass for two main reasons:

  • Two non-consonant bass notes playing at the same time muddies the low end, because the beat frequencies associated with such low frequencies are slow and disruptive.
  • The sound is more realistic. Most bass parts are single-note lines, and with electric bass, there’s usually a finite amount of time between notes due to fingering the fret, and then plucking the string.

One option for fixing this is to zoom in on a bass part’s note data, check every note to make sure there aren’t overlaps, and shorten notes as needed. However, Overlap Correction is much easier. Simply:


  1. Select All Note data in the Edit View.
  2. Choose Action > Length, and then click the Overlap Correction radio button.
  3. Set overlap to -00.00.01.
  4. Click OK.

Normally I’m reluctant to Select All and do an editing function, but any notes that don’t overlap are left alone, and I haven’t yet run into any problems with single-note lines. Fig. 1 shows a before-and-after of the note data.

Figure 1: The notes circled in white have overlaps; the lower copy of the notes fixes the overlaps with the Length menu’s Overlap Correction feature.

Problem solved! The reason for setting overlap to -00.00.01 instead of 00.00.00 is because with older hardware synthesizers or congested data streams, that very slight pause ensures a note-off before the next note-on appears. This prevents the previous note from “hanging” (i.e., never turning off). You can specify a larger number for a longer pause—or live dangerously, and specify no pause by entering 0.

Also, although I referenced using this with keyboard bass, it’s useful for any single-note lines such as brass, woodwind, single-note MIDI guitar solos, etc. It can also help with hardware instruments, including electronic drums, that have a limited number of voices. By removing overlaps, it’s less likely that the instrument will run out polyphony.

There’s some intelligence built into the overlap correction function. If a note extends past another note, there won’t be any correction. It also seems to be able to recognize pedal points (Fig. 2).


Figure 2: Overlap Correction is careful about applying correction with polyphonic lines.

Selecting all notes in the top group of notes and selecting Overlap Correction didn’t make any changes. As shown in the bottom group of notes, preventing the pedal point from overlapping the final chord requires selecting the pedal point, and any of the notes in the last chord with which the pedal point overlaps.

It’s easy to overlook this gem of a feature, but it can really help with instrumental parts—particularly with keyboard bass and solo brass parts.

Sound on Sound Reviews Studio One!

Sound on Sound Magazine is “the independent voice of music recording technology for over 34 years.” Their team is based in the United Kingdom and, like the rest of the world, Covid-19 has thrown a wrench in their day-to-day and service to their customers. In response to the lockdown, they’re now offering access to their September issue for FREE! Read cover to cover digitally here. 

The PreSonus Quantum landed on the cover of Sound on Sound back in 2017.  We are very excited to see Studio One featured in their latest issue! Writer Robin Vincent gives an extremely detailed review of many of Studio One 5’s enhancements, new features and so much more.  All we can say is THANK YOU!

Here is a direct link to their deep dive into Studio One 5! 

They also shout out to PreSonus Sphere! Here’s a little snippet:

The pricing is impressive, achievable, realistic and it keeps you in the upgrade loop.

Learn more about PreSonus Sphere here:


Transient Shaper FX Chain


As you can probably tell, I’m a fan of FX Chains—they satisfy my inner DIY impulse to put things together, and result in some cool, useful, new processor I didn’t have before. For this Friday’s tip, let’s put together a Transient Shaper designed specifically for drums and percussion. It can emphasize the attack, the post-attack section (called “Girth” in the FX Chain), or both, as well as mix any blend of them. Of course, there’s a download link for the multipreset—but first, let’s listen to what transient shaping can do.


The first two measures are the straight Crowish Acoustic Bridge 2 w. Fill drum loop from Studio One’s sound library. The next two measures add Attack shaping, the next two add Girth only, and the final two measures combine Attack and Girth, with 1 dB of limiting. All examples are normalized to the same peak level.

How it Works

Fig. 1 shows the block diagram. Mixtool 3 adjusts the input level, because when feeding any dynamics processors, you need to find the sweet spot where the processors act as expected. In this case, you want the input level to provide a signal that uses up most of the headroom.


Figure 1: Block diagram for the Transient Shaper FX Chain.


The incoming audio splits into three paths. The left path is an expander, set up to provide upward expansion. This is what emphasizes the attack. The Mixtool adjusts the path’s level.

The middle path is a compressor, set for the shortest attack time possible to reduce any existing attack to a minimum. Some compression brings up the post-attack part of the audio. Mixtool 4 adjusts this path’s level.

The right-most path sets the dry signal’s level. This is an important parameter, because you can take out the dry signal and be left with only what’s contributed by the Attack and Girth paths, or use them to enhance the dry sound.

The Macro Controls

It takes a little effort to get familiar with the controls. The Attack shaper is the main point of this FX Chain, so to acquaint yourself with what the Attack parameters do, load up a drum loop of your choice, and then do the following.

Figure 2: Default control settings for the Transient Shaper FX Chain.



  1. Turn Girth, Dry, and Limiting down all the way.
  2. Turn off all switches except Attack Enable.
  3. If the drum loop doesn’t use up the available headroom, normalize it, or turn up the input control.
  4. Turn the three attack-related controls up about 2/3 of the way. Vary Attack Width; turning it clockwise shortens the attack transient.
  5. Set Attack Width to around 1:4.5. Now, vary the Attack Amount. Turning it counter-clockwise raises the level below the attack. This provides a smoother transition if the enhanced attacks sound too isolated.
  6. Turn up the Dry control about 2/3 of the way. Mix in the desired amount of attack with the Attack Level control.
  7. Next, disable Attack, enable Girth, and vary the Girth control to find out how it affects the sound. As with Attack, you can vary the proportion of the Girth and Dry sounds.
  8. The Inv Phase button inverts the Dry path phase. It’s not something you’d normally enable, unless you’re in search of bizarre special effects…but you’re a creative bunch, so I figured I might as well put it in.
  9. If you want to perk up those drums even further, go ahead and slam the limiter.


One final comment: It’s easy to go overboard with transient shaping, but after the novelty wears off, you’ll find that even a little bit of enhanced attack can make a track sound more lively. And while we’ve covered this only with drums, it also works for bass attacks, plucked strings, and strange percussion instruments…basically if something has an attack, this FX Chain can shape it.


Download the preset here!

Studio One 5’s Dynamic EQ Meets EDM

I’ve always loved having one track impart its characteristics to a different track (“cross-modulation”), particularly for EDM. A good example is using a vocoder for “drumcoding,” where drums—not a microphone—provide the vocoder’s modulation source. Previous Friday Tips along these lines include The Ultra-Tight Rhythm Section, Smoother/Gentler Sidechain Gating, Pumping Drums – With No Sidechain, and most recently, Rockin’ Rhythms with Multiband Gating.

Sending audio from one track over a sidechain to control dynamic EQ in another track is great for cross-modulation effects—and now this is easy to do in Studio One 5 because sidechaining has been added to the Multiband Dynamics processor. One of my favorite effects is using the kick drum to boost the upper midrange on a rhythm guitar part or keyboard pad so that the guitar or pad emphasizes the rhythm…and that’s just one possibility.

This isn’t about “textbook” dynamic EQ in the sense of being able to use any type of filter (e.g., highly resonant bandpass) as the EQ, but as pointed out in the Friday Tip Studio One’s Secret Equalizer, the Multiband Dynamics combines both EQ and dynamics. We’ll use that to our advantage—and in a way, a relatively broad filter response is better for this kind of application. (The typical dynamic EQ application involves fixing a problem, and for that, you often need precise filtering.)

The Setup

Insert the Multiband Dynamics in the Target track, like guitar, pad, organ, etc. Then, insert a Send (pre-fader is probably best) in the Source track (e.g., kick or snare drum). Assign the Send to the Multiband Dynamics sidechain (Fig. 1).


Figure 1: This technique requires a source track to trigger the Multiband Dynamics’ sidechain and a target track that’s processed by the Multiband Dynamics.

Multiband Dynamics Settings

This is where the fun begins. The sidechain feeds all Multiband Dynamics bands simultaneously, so the most basic implementation would be bypassing all the bands except for one, which you then set to either cut or boost a particular frequency range. The amount of boost or cut depends on the level that the source track sends to the sidechain.

For example, with compression, you can create pumping effects (Fig. 2).



Figure 2: The Multiband Dynamics attenuates the selected frequency range whenever it receives a signal from the source track.

In this example, a kick drum is modulating a pad. Every kick drum hit attenuates the HM (High-Mid) range; the amount of attenuation fades over the 1000 ms Release time. A shorter Release parameter creates a more percussive effect. Choose the frequency range you want to modulate by adjusting the crossover frequencies. Even better, note that you can automate the Multiband Dynamics’ crossover frequencies, so the frequency range can sweep over time—this is a novel effect that adds considerable animation.

Another option is to raise the target band’s Gain so that any modulation lowers the band’s level. In other words, the default state for that band is boosted, and modulation reduces the boost.

You can also boost a band’s level in response to dynamics, by setting the Multiband Dynamics parameters for upward expansion (Fig. 3). Note how the graphic in the upper left shows an expansion curve instead of one for compression.

Figure 3: Upward expansion boosts the target audio in the selected frequency range.


The control settings here are fairly crucial. Ratio must be set for upward expansion, so the second number in the ratio control needs to be greater than one—the bigger the number, the steeper the expansion. For the maximum expansion effect, set High Threshold to 12.00. The Low Threshold parameter determines where expansion begins, and Gain increases the overall level to compensate for the lower level below the point where expansion kicks in. Adjust Attack and Release to shape the boost’s dynamics. Because upward expansion boosts the output signal level, you may need to reduce the Global gain somewhat.

But Wait—There’s More!

The best way to understand all the possibilities is to create a basic setup like the one in Fig. 1 with a kick drum as the source and a very simple, sustained pad (e.g., a chord with sawtooth waves) as the target. This will make it easy to hear the results of playing around with the Multiband Dynamics’ controls. And of course, it is a multiband processor, and the sidechain feeds all the bands, so you could have one band attenuating while another is boosting. If you get into automating parameters, the sky’s the limit.

Dynamic EQ can also be useful to process signal processing. For example, suppose there’s a main reverb inserted in a bus, to which you send drums, guitar, voice, etc. To avoid muddiness, insert a Multiband Dynamics after the reverb, use kick as the sidechain source, and attenuate the low frequencies whenever the kick hits.

Cross-modulation with dynamic EQ can be serious fun…give it a try.

Bucket Brigade Delay FX Chain

I wanted a Bucket Brigade Delay (BBD) effect in Studio One. Seriously.

Although some analog delays (e.g., Binson Echorec) were based on tape, others used analog “bucket brigade” technology. Bucket brigade integrated circuits (like the Panasonic/Matsushita MN3005 or Reticon SAD-1024) incorporated thousands of capacitive elements controlled by a clock. Each clock cycle passed the analog signal at the input from one stage to the next, so slower clocks meant longer delays. But because sampling (albeit analog) was involved, so was the Nyquist theorem—the more you slowed down the clock, the more likely you’d hear aliasing and distortion. At really long delays, sometimes you’d even hear leakage from a clock that had gotten down to the audible range.

So I emailed Arnd Kaiser, the General Manager for PreSonus Software, and told him I wanted to modify the Analog Delay into a BBD. He seemed puzzled and said that if you turn up the Drive and lower the High Cut frequency at longer delays, you’ll get the BBD sound. True, but that sound is of a clean, well-designed BBD where the designer didn’t push the chips, and knew how to layout a circuit board. That’s fine, but I wanted filth…time for an FX Chain (Fig. 1).

Figure 1: The Analog Delay plug-in is the heart of this FX Chain.

 The solution was tracking the Delay Time with the BitCrusher’s Downsampling parameter, so at longer delay times, those lovely violations of Mr. Nyquist’s theorem could grace the sound with aliasing and sonic nastiness.

I was running late submitting the tip because of going down this crazy BBD rabbit hole, so I emailed Ryan Roullard at PreSonus (who among a zillion other things makes sure my Friday Tips roll along smoothly every week) to apologize for the delay and give him a heads-up of what to expect for this week’s tip. He asked if I’d included the clock leakage whine as part of the sound. I was embarrassed to say that I had overlooked it, but Ryan said that if I figured out how to add it in, he’d never tell anyone of my shameful omission.

You can download the Bucket Bridge Delay.multipreset, so I won’t go into much detail—reverse-engineer it to find out how it works, or modify it to do even stranger things. Please note: It’s probably best to insert this into an FX Bus with the Mix control set to wet only because unless none of the three switches is enabled, there’s no way to have a completely clean sound.

The important part is the three switches—Arnd, Craig, and Ryan. You can select none of them or any/all of them. With none of the three switches selected, you have a standard Analog Delay sound, with the other knobs and buttons doing their standard Analog Delay functions. But…

  • Click Arnd, and now increasing the delay Time increases the State Space drive, and pulls back on the High Cut, to get that BBD-but-still-fairly-clean sound.
  • Click Craig, and now the Bitcrusher Downsampling tracks the Delay Time as well.
  • Click Ryan, and you’ll introduce that lovely clock whine, whose frequency also tracks the Delay Time. The whine has its own dedicated level control so you can decide how much clock leakage you want in the sound. (Pro Tip—turn it up to emulate the sound of a bad circuit board layout!)

And there you have it—delicious, modern digital meets filthy, vintage analog. Have fun!


Download the Bucket Bridge Delay.multipreset Here! 

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Justin’s Black Fox Society is available in two editions: Abstract, the “lite” edition, and Vault, the heavy-hitter. Justin literally traveled to obscure corners of the Earth—22 countries, in fact—to record ambient soundscapes from some of the world’s spookiest places, bringing them home to mix, edit, and process over the course of several years.

Black Fox Society: Vault is an intense labor of love that clocks in at a massive 14.9 gigabytes. While we’ve cut the price in half for a very limited time, note that we do not sell external hard drives.

Do yourself a favor and read all about Justin’s travels to create Black Fox Society in this blog post.


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Notion iOS 2.5.3 Release Notes

Notion iOS 2.5.3 Maintenance Release

An update is now available to the recent 2.5 release for Notion iOS, the best-selling notation app on iOS. This is a free update for Notion iOS owners that can be obtained by visiting Notion in the App Store on your device, or checking your available updates in the App Store.

All the changes are below—if you missed all the major news for v2.5 itself, check it out here.

And while you’re here, please join us at our new official Facebook user group:


All Fixes and Enhancements:

Restore Purchases:

  • New ‘Restore Purchase’ button in Settings>Handwriting
  • ‘Restore Purchases’ in Sounds menu no longer also triggers downloading the sounds – it just restores the purchase state

Dragging Improvements:

  • Fix for flickering when dragging score items
  • Score items can now be more easily dragged across measure lines and between staves
  • Improvement when dragging and dropping score item between staves
  • Final drag position of score items more accurate
  • Stability when dragging improved


  • Stability and performance improvements
  • Fix for ‘Insert Barlines’ dialog position on iPhone
  • General translation fixes
  • Now uses original language expression text in Chinese localization (e.g. arco, pizz)
  • Key signature is now always sent in MIDI export even if it is C major
  • Minimum requirements: Apple iOS9 or higher (please note, Notion 2.5.x will be the final version to support iOS9 and iOS10)