PreSonus Blog

Polyphonic Glide with Any Synth

Before getting into this week’s tip, here’s some news.

First, thank you for your continued support of the Studio One eBooks. The goal was to make sure that the books remain current—so there are revisions, as well as new editions.

Revisions are like software “point” updates. They’re free to registered users of the original book, and also make sure new buyers get the latest information. A revision for “How to Make Compelling Mixes with Studio One” will be available next week. New editions expand substantially on the original (like how software advances from one version to the next). The latest is More than Compressors: The Complete Guide to Dynamics in Studio One – 2nd Edition, available now in the PreSonus shop (available to owners of the first edition for half-price).

Second, remember that if you have any questions, comments, corrections, or additional ideas about the books, there’s a support thread where you can ask questions and I’ll answer them. The thread also announces when revisions and new editions are available.

And now…on to the tip!

Why Polyphonic Glide is Cool

Creating steel or slide guitar sounds with keyboards is difficult, because few soft synths have polyphonic glide. If they do, sometimes the results are unpredictable.

For my first, admittedly pathetic attempt at “steel synth,” I tried setting the synth bend range to 12 semitones and using the pitch bend wheel to slide entire chords up or down in pitch. However, hitting an exact pitch with the wheel is really difficult. I tried editing the parts to have correct tuning…but that took forever.

Fortunately, there’s a simple answer. It’s not a real-time solution (you’ll need to use the note data edit view), but it works really well—check out the audio example.


A Studio One Pitch Bend “Secret”

The basic idea for slide emulations is you sustain a note, and then use pitch bend to slide the sustained note(s) up (or down). In Fig. 1, a C major chord is gliding up to F and then G, to create the ever-popular I-IV-V progression.

Figure 1: A C major chord is sliding up to an F major, and then a G major.

To ensure correct tuning, create a pitch bend node where you want the new pitch to begin. Right-click on it, and then enter a number that corresponds to the number of semitones you want to “glide” (see the table below). This assumes the synth’s pitch bend range is set to 12 semitones. If you want to bend down by a certain number of semitones, use the same pitch bend amount—just make it negative.

Remember that pitch bend is based on a percentage scale, so in Fig. 1, the first pitch bend node (circled in white to make it more obvious) is set to 0.417 (5 semitones). The second node for the fifth is 0.583 semitones. Lines from one node to the next create the actual glide.

When you right-click on a node to enter a number, the resolution appears to be only two digits to the right of the decimal point, which isn’t good enough for accurate tuning. However, you can enter a three-digit number, as shown above. Even though it won’t be displayed, if you enter that third digit, the dialog box accepts it and Studio One will remember it—so now, you can glide to the exact right pitch.