A classic tension riser that lifts and speeds up towards the drop.
We’re using Sylenth for this walkthrough, but just about any virtual analogue synth will be more than capable. All you need is a noise generator, low-pass filter and LFO.
Initialise the patch by clicking on Menu in the central window and selecting Init Preset from the drop-down menu. Now move to Oscillator A1, click and drag all the way up on the box to the right of Wave until you see the Noise waveform.
The noise needs to be filtered. In the Filter A section, click and drag up on the box below Filter Type to activate the low-pass filter, then reduce both the cutoff and resonance controls to around 33%.
Next, under LFO1, click on the first modulation panel (the green backlit box) and select Cutoff A as the modulation destination. Apply modulation by clicking and dragging up on the dial to the left of the modulation box until it’s at 100%. Now do the same with the LFO gain dial to hear the LFO effect in action. Finally, turn the Rate dial to around 40%.
With the LFO now modulating the cutoff frequency, we’ll increase the LFO rate for the classic wind-up effect. The easiest way of doing this is by automating the LFO rate in your DAW for precise control over its speed (and, as before, remember a straight line is rarely best).
Finally, add a little reverb to to give the sound a sense of space.