machine-generated (voss-mccartney algorithm multi-pass implementation in Python) pink noise audio, with digital signal processing applied to enhance the scale of the perceived soundstage in stereo (early reflections, haas effect, reverb, variously modulated at low frequency to impart movement and interest) and add quiet tones detuned in stereo for 'binaural beat' effects
headphones (or like, big-ass klipsch speakers) recommended
[2026-10-23] current latest file date
[2026-10-23] audio generation improvements: a review found the old reverb applied one decay curve to the whole file, so it's been fading out ~20s in every day. it's now a convolution reverb with a real wet/dry mix. also fixed: filters that were carving 10–20 dB notches into the sound, a right channel that was always louder, settings too subtle to hear, rooms that sounded identical, uneven loudness between days. archive has been regenerated with the new code
the material is also available as a podcast, including historical audio files since 2026-09-08
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Duration: Generated on 2026-10-23
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