Is this what you were thinking of?
: Mansell utilized "artistic and untraditional" techniques [1]. He famously used a voice sample from an EMU ESI 32 sampler floppy disk—a specific "ahhhh" sound—to create a sense of eerie lull in the tracks [12]. clint mansell pi soundtrack
The result is a soundtrack that feels "sick." It is the auditory equivalent of a migraine aura; it pulses, throbs, and refuses to let you look away. Is this what you were thinking of
The soundtrack is a blend of Mansell's original compositions and prominent electronic artists from the 1990s. Rate Your Music clint mansell pi soundtrack