Crackle Noise When Adjusting Inside SP Software

When controlling the filter frequency within a sampler, I get a crackling/popping noise. The noise is only noticeable while the filter frequency is actively sweeping. (No noise when the frequency is entered and fixed at one value.)

It happens regardless of controller type. Even while manually sweeping the frequency value with mouse, or with an LFO controller. Both Hi Pass and Low Pass filter types are noisy. Adding the Filter Effect on top of a drum, pad, or send still results in noise. It is most noticeable on low end or longer samples.

The same noise occurs when adjusting the volume of a drum, and while adjusting the send. Also happens when controlling any effect parameter on a drum, send or pad.

I’ve tried two different 2nd gen focusrite interfaces, usb cables, speaker systems, and even two different Windows laptops. The noise persists.

Any ideas?

I’m using the 64 bit version of SP 1.6.3 on Windows 10

441 sample rate

128 buffer size

Focusrite Scarlett 18i8 with ASIO Driver