While the vast majority of videos have been four- or five-second clips, there have been several anomalies. One is a 10-second jarring high-pitched squeal. Another video posted in early February contains blurry images coupled with unintelligible digital audio, somehow creating an effect more troubling than usual. Two days in particular were unlike any other: August 10 and 11, when several videos were posted with irregular visual and audio patterns. One was 11 hours of mostly silence. Another video features the voice reciting the alphabet.
via The Unsettling Mystery of the Creepiest Channel on YouTube | Atlas Obscura.
