Vibrato & Pitchbend

Vibrato & Pitchbend

Important Setup for Sabre Pitchbend Effects

One of the hard things about pitch bending is ensuring that you stop precisely on an actually note – otherwise things tend to sound out-of-tune. AC Sabre employs a special algorithm to pull the current value towards the nearest note as you slow down. AC Sabre also has a vibrato effect, the amount of which you can set independent of the total pitchbend range (see Settings). In other words, you can still have a nice subtle, 1/4 step vibrato even when the min/max pitchbend of your synth is ±24!

In order for these features to work accurately, AC Sabre’s External Pitchbend value must match the min/max pitchbend on your synth or sampler’s currently loaded patch. You can change this value via the “Extern PB” button in QuickPanel 2:

Sabre-Screenshot-External-Pitchbend-button     Sabre-Screenshot-External-Pitchbend-popup



When you “shake” the AC Sabre up and down in a linear fashion (i.e. without changing the angle of the phone – see Motion Controls) it sends out small pitchbend data to allow you to perform vibratos. The vibrato amount can be set in the Patch Settings section and varies from a quarter step (1/4 the distance between two chromatic notes) up to the current max pitchbend amount (for a wild time!).

QUICK TIP: If you suddenly notice that the shake vibrato effect is too extreme or too subtle then it is likely that your synth/sampler’s min/max pitchbend value no longer matches the one in AC Sabre. Open Quick Panel 2 and update the External Pitchbend Amount (see above).

Pitchbending and Whammy Bar Mode

There are two ways to do pitchbends in the Sabre. The first is with a Ribbon. By default, Ribbon 2 is set to control pitchbend.

The second way is available on the top bottom in some of the Blooms


When this button is pressed the nearest Beam/note is triggered like normal, but when the device is then moved, would-be “plucks” are suppressed and translated into pitchbend information. This allow much more precious note bending than with traditional controllers.