Hello all, one of my students was asking about using white noise and filter sweeps to create dramatic transitions. I started experimenting with the idea and had a ball playing with the possibilities and exploring sound. So, here is how I responded:
Hey guys, the white noise sweep is a cool effect, here is my version. I have attached the screenshot and the preset, you can drop it into a MIDI track and hold down any note to hear the sweep.
The noise generator is Operator, I have the first two oscillators set to create noise.
Then the filter in Operator is used to create the sweep, It is a band pass filter and its envelop is controlling the cutoff frequency of the filter. You may want to adjust the Attack parameter of the filter envelope to control how fast the filter moves to the top, Resonance will change how obvious the filter is, and you may want to play with the Shaper and Drive amount, very cool.
After the operator is a Frequency Shifter that adds a nice movement to the noise, notice the settings, I am using a tiny amount of shift, I find that is the best way to use the effect(it adds a nice modulating phasey quality, any more and it turns into a crazy Dr. Who effect), and Dry/Wet is set below 50%.
Next is a delay to add some lingering motion to help glue the sections and an EQ to tame the high end and boost the bass.
Here is the preset: NoiseSweepAdg
Drop it into a MIDI track and hit a key on your keyboard to hear it in action.
Enjoy, and thanks for the challenge I enjoyed building the patch, and I will probably use it in my future productions. Feel free to use it yourself, and explore explore explore!