Alyri2.mp4 -

At the time, players theorized it was a teaser for a new Valve game or a viral marketing campaign for a horror project. Analysis Summary Media Type MP4 Video / WAV Audio Primary Leads Spectrographic analysis of audio tracks Visuals Low-quality, "glitchy" footage including a flash of a face Outcome

A user claimed to be digitizing three old tapes containing "weird stuff." alyri2.mp4

how to use spectrographs for similar ARG puzzles. At the time, players theorized it was a

The videos (alyri1.mp4 and alyri2.mp4) featured distorted imagery and eerie audio. Investigators ran the audio files (e

Investigators ran the audio files (e.g., horrorbark.wav ) through spectrographs , revealing banding patterns that resembled Morse code or musical scales.

💡 The "alyri" series is a classic example of early 2010s internet mystery culture, relying heavily on hidden metadata and spectrography to hide clues.

Largely considered an unsolved or abandoned ARG from the early 2010s