What's hurting this article is how preoccupied it is with detailing a basic compulsion effect, and one that isn't anything spectacular or noteworthy. Audio anomalies which people idolize are nothing new, and dwelling so long on that point isn't doing the piece any favors.
I can't say the secondary effect, being ultra-sensitive to speech, is incorporated in a way which makes it integral to the flow and execution; it just comes across as a boring excuse to hide information (and it's done away with, seemingly for no reason, when it's narratively convenient, which makes it feel even more contrived).
It admittedly does pick up right at the end, but I'd long grown tired of it at that point.
As an minor aside, I'm not sure why they couldn't interview the deaf test subject with someone fluent in sign language.
ETA: If I were to make a suggestion to better structure this, I would see if it isn't possible to do away with the first two logs, or at least weave something through them that isn't belaboring the 'transcendent' nature of the audio. I understood the mechanics of the SCP from the description. From that point, I felt stiffed on story 'sorry, Mario, your plot progression is in another file'…its not endearing to have the plot here screech to a halt to exhaustively act out what amounts to a cliched trope.