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Official effect

Greyhole

Currently the same oversized trailing-diffuser space as Blackhole-Style Space rather than a separately voiced Greyhole algorithm.

The current blackhole-style family uses the shared diffuse reverb core and feeds it through an oversized trailing diffuser for a longer, softer late bloom. `space` stretches both the base core and the trailing diffuser, `decay` raises the comb feedbacks and trailing diffuser recirculation, and `tone` brightens the underlying wash.

  • Reverb & Space
  • Library #173
  • Preview 8s

Waveform preview

Static peaks come from the compiled FAUST preview render. The live scope is drawn from the browser playback output in real time.

Timeline
0:00 / 0:08
Source
Compiled browser preview
Live oscilloscope from the browser playback output.AnalyserNode keeps the signal path unchanged while exposing the waveform.

How It Works

Technical view

The current blackhole-style family uses the shared diffuse reverb core and feeds it through an oversized trailing diffuser for a longer, softer late bloom. `space` stretches both the base core and the trailing diffuser, `decay` raises the comb feedbacks and trailing diffuser recirculation, and `tone` brightens the underlying wash.

  • Reverb & Space
  • waveshaping / saturation
  • delay processing
  • oscillator / LFO modulation
  • DC blocking

Signal Path

Compiled preview chain

Preview source: An internally generated picked-string phrase is widened to stereo with a 19-sample right-channel delay and slight left/right shelf-EQ offsets before it hits the reverb core.

  1. 1internal picked-string demo phrase
  2. 2stereo spread with a short right-channel delay
  3. 3four parallel damped comb stages
  4. 4two serial diffuser stages
  5. 5post-reverb high-shelf shaping
  6. 6oversized trailing diffuser stage
  7. 7dry / wet blend
  8. 8DC blocker
  9. 9output gain trim
  10. 10final tanh limiter

Preview source

An internally generated picked-string phrase is widened to stereo with a 19-sample right-channel delay and slight left/right shelf-EQ offsets before it hits the reverb core.

Effect core

Diffuse comb-and-diffuser reverb with an oversized trailing diffuser for a longer late bloom.

Signal path

The static waveform and the live player both reflect this compiled signal chain.

  • internal picked-string demo phrase
  • stereo spread with a short right-channel delay
  • four parallel damped comb stages
  • two serial diffuser stages
  • post-reverb high-shelf shaping
  • oversized trailing diffuser stage
  • dry / wet blend
  • DC blocker
  • output gain trim
  • final tanh limiter

Controls that matter

These are the currently active controls detected in the FAUST source for this effect.

  • mix: Blends between the dry source and the wet reverb field after the reverb core.
  • output_gain_db: Applies final post-effect level trim after DC blocking and before the output limiter.
  • space: Expands the base comb-and-diffuser lengths and lengthens the oversized trailing diffuser stage.
  • decay: Raises the base comb feedbacks and the recirculation of the added trailing diffuser.
  • tone: Raises the damping cutoffs in the base reverb core before the trailing diffuser stage.

Code-backed analysis

The generated description is tied to the active helper blocks and routing found in the current DSP.

  • demo
  • fx
  • outputStage
  • leftDemo
  • rightDemo
  • verbFx
  • phraseMono
  • previewShiftSamples

Controls

Audible controls in this DSP

  • mix

    Active

    Blends between the dry source and the wet reverb field after the reverb core.

    Lower settings stay more direct; higher settings move the patch further into the ambient tail.

  • output_gain_db

    Active

    Applies final post-effect level trim after DC blocking and before the output limiter.

    Matches loudness without changing the actual reverb structure.

  • space

    Active

    Expands the base comb-and-diffuser lengths and lengthens the oversized trailing diffuser stage.

    Moves the ambience from large and roomy toward a more stretched, cavernous wash.

  • decay

    Active

    Raises the base comb feedbacks and the recirculation of the added trailing diffuser.

    Extends the ambient tail and thickens the late bloom.

  • tone

    Active

    Raises the damping cutoffs in the base reverb core before the trailing diffuser stage.

    Makes the space darker at low settings and more open at high settings.

Analysis

Code-derived notes

Current implementation shares the same oversized trailing-diffuser reverb core across Blackhole-Style Space and Greyhole. Greyhole is not yet differentiated from Blackhole-Style Space.

Active blocks

  • demo
  • fx
  • outputStage
  • leftDemo
  • rightDemo
  • verbFx
  • phraseMono
  • previewShiftSamples
  • verbWet
  • pickedVoice
  • verbCore
  • diffuser
  • fund
  • pickEnv
  • ampEnv
  • triggerAt
  • combLP
  • maxDelaySamples

Inactive helpers

  • synthVoice
  • organVoice
  • bellVoice
  • softsat
  • quantize
  • echoOnly

Warnings

No current warnings are attached to this effect.

Source

  • library/reverb-space/greyhole.dsp
  • Output stage: DC blocker -> output gain trim -> final tanh limiter
  • Library position: 173

More In Reverb & Space

Continue through the library

Each effect page uses the same generated description pipeline and compiled waveform preview assets.

Plate

Smooth diffuse reverb from a four-comb, two-diffuser plate-style core.

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Spring

Spring-flavored ambience built by layering a short resonant comb onto the shared diffuse reverb core.

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Cloud Reverb

Currently the same expanded-diffusion hall core as Hall rather than a separately voiced cloud engine.

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