“Entry Number Seventeen Dark Darker Yet Darker The Darkness Keeps Growing The Shadows Cutting Deeper Photon Readings Negative This Next Experiment Seems Very Very Interesting … What do you two think”
I always hated the moan/grunt that happened around 0:38, and I never saw anyone else comment on it. It sounded as if Gaster was whimpering in pain, and it's the last 2 seconds of the audio.