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The Electronic Audio Experiments Hypersleep is a solid-state analog reverberator. It evokes the immediate acoustic reflections of metal and tile, with a gritty timbre and a ringing, fluttering decay—forgoing epic atmospherics in favor of liminality.
At the heart of the Hypersleep is the unusual and obsolete MN3011 bucket brigade device. Unlike other BBDs with one input and one output, the MN3011 uses an array of staggered delay outputs to produce a smeared-out echo. Feeding this echo back upon itself produces a reverberant texture. The reverb length can be modulated via the onboard LFO for atypical chorus and vibrato effects, or the haunting sound of a room changing size in real time. As always, careful signal conditioning ensures that Hypersleep is friendly to any instrument or line level signal source.
Level: overall effect level, gracefully overloads at higher settings
Space: delay time of the BBD, simultaneously controlling six taps on a single delay line
Mix: blend of clean and effected signals, from full dry to full wet
Feedback: increases the decay time of the reverb; will self-oscillate at extreme settings
Rate: modulation rate, from imperceptibly slow to nearly audio rates
Depth: modulation depth, from subtle vibrato to warped pitch bending
Version 2 (Fall 2021)
Updated filter scheme for improved bandwidth and clock suppression
Minor changes to feedback, for a less “boomy” low end response
Optimized power supply for reduced current draw and background noise
Bypass relay replaced with silent electronic switch
Version 1 (2020)
Original release
Bypass:Electronic switching with FET-input op amp bypass buffer
Input impedance @ 1Khz: 1MΩ
Output impedance @ 1Khz: <1kΩ
Power: 9VDC, 2.1mm center negative barrel. The current draw is 60mA.
We recommend a regulated, isolated power supply rated for 100mA minimum. The DC input is protected against reverse polarity and over-voltage up to 24V. Our pedals do not accept batteries.
