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Infrared and thermal cameras are carefully positioned, and audio detectors are set to bat friendly frequencies.
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Nature, Published online: 26 February 2026; doi:10.1038/d41586-026-00672-z
Let me introduce you to what I call the PCM boundary. PCM (Pulse-Code Modulation) is the raw, uncompressed digital audio format that eventually gets sent to your speakers. It’s the terminal endpoint of every audio pipeline, regardless of how aggressively encrypted the source was.