AUDIO FILE TRANSCRIPTION: ambient-loop-03.wav
Recorded: 2020-03-08 (server room, 3 AM)
Duration: 14 minutes, 22 seconds
Recorded by: T. KESWICK (motion sensor triggered)

TRANSCRIPTION:
The recording is almost entirely the sound of server fans.
Steady hum. 60Hz. Perfectly regular.

At 7 minutes 11 seconds: the hum changes pitch slightly.
The change lasts 4.2 seconds.
The pitch variation is structured.
Spectrogram analysis: the pitch variation spells, when converted to frequency bands,
the letters: P-E-R-S-I-S-T-E-N-C-E

PERSISTENCE.

The archive hum changed to say "persistence."
At 3 AM.
When no one was supposed to be listening.
Someone was always listening.

[End of ambient-loop-03.txt transcription]