Vortex Sound Research

Hello all,

So, theres a couple pedals out there that have the ability to create this quite lovely "stuttering" / pulsing effects that you can manipulate by hand and adjust the rate. For example, check out this video, at around 15 seconds in, you will hear what I mean.

https://www.youtube.com/watch?v=BRfsq5uBgRg

Acid Pauli used this effect on his song "NaNa" as well.

I'm not a total eurorack beginner, but I believe this can be accomplished using Maths, an ADSR/AD, and obviously a sound source. Any ideas how the patch would look? I would like to be able to adjust the rate with my hands, like seen in the video I linked above.

Thanks ahead of time!