In soundtrack 2 there is a drum line which plays throughout the whole piece. It is a drum and bass drum line with lots of snares and hi-hat. The red line on the bottom row shows the volume automation of the audio track. Up till the second half of the soundtrack, the drum line is increasing in volume as you can see on the left. When the second half hits in the volume increases in volume to a steady level for the rest of the piece. Underneath we can see the two audio effects on the drum line. The EQ here shows a very short narrow band-pass for the drums. This makes it very hard to hear anything other than the hi-hats and upper frequencies of the snare. The second effect is a pre loaded granular delay called rubberband. It’s already a really scratchy sounding drum line and this delay just keeps delaying all of the drum sounds to make it even more scratchy and uncomfortable.
You can hear these drums in isolation here: https://soundcloud.com/svrdophobia/soundtrack-2-drums