A deep-dive analysis by film criticism site Vague Visages explored the boundary between pure sound design and conventional composing in contemporary genre filmmaking. Obsession thrives precisely where that boundary blurs. Rather than leaning on lush melodic leitmotifs, the production’s composer score cues lean heavily on infrasound frequencies, often humming between 18 Hz and 35 Hz.
These ultra-low frequencies operate just below the threshold of conscious listening on high-end theater systems, yet they trigger real physical reactions: unexplained dread, tension, and mild inner-ear pressure. By pairing these frequency manipulations with metallic bowing and erratic tape decay, the soundtrack functions like an acoustic vice. Melodic motifs emerge only sparingly, acting as brief memories of normalcy before the discordant drone crashes back over the mix.
