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zen-verb

ZenVerb

ZenVerb is an implementation of “Zita reverb”, an open-source algorithmic reverb by Fons Adriaensen (see https://ccrma.stanford.edu/~jos/pasp/Zita_Rev1.html). Our first implementation was called “Reverb-Z”, and this is still reflected in the GUI, although we changed the effect name to “ZenVerb”.

What distinguishes ZenVerb from all other reverbs provided with Unify is the fact that low- and mid/high frequencies are separated (via an internal dual-band EQ) and processed with completely separate timing. This allows very flexible control over the dark and bright parts of your mix.

Controls/parameters

EmVerb has ten control knobs, each corresponding to an identically-named parameter available for modulation, as follows.

  • Predelay: amount by which “wet” signal is delayed relative to “dry”, 0-200 ms, default 60 ms.
  • Crossover Freq: crossover frequency separating low and middle frequencies, 10-1000 Hz, default 200 Hz
  • Low Release: time to decay 60 dB in low-frequency band, 0.1-10 sec, default 3 sec
  • Mid Release: time to decay 60 dB in mid-frequency band, 0.1-10 sec, default 2 sec
  • Damping Freq: frequency at which high- and mid-band decay release times are equal, 10 Hz - 20 kHz, default 6 kHz
  • EQ Range 1: center frequency of EQ section 1, 10-1000 Hz, default 315 Hz
  • EQ Level 1: peak level of EQ section 1, -20 to +20 dB, default 0 dB
  • EQ Range 2: center frequency of EQ section 2, 10-20000 Hz, default 1500 Hz
  • EQ Level 2: peak level of EQ section 2, -20 to +20 dB, default 0 dB
  • Dry/Wet Mix: percentage, 0 (all dry) to 100% (all wet), default 50%.

Tips and Tricks

  • Adjust Low Release to control the tail length for low frequencies, and Mid Release for high frequencies. The ability to adjust these separately is the main distinctive characteristic of ZenVerb vs. other reverbs.
  • Increase Damping Freq for a bright sound, reduce for a dark sound (also reduces tail length).
  • Experiment with the EQ controls to balance tail length and tonal balance.
  • The Predelay setting allows you to delay the onset of the wet signal, to allow the dry signal to stand out in the mix with a clean “punch”. Use extreme Predelay settings for creative effects.
  • When using this or any reverb effect on an AUX layer, set (Dry/Wet) Mix to 1.0. When using as an in-line effect on an INST layer, you would normally keep the Wet Level below 0.5. Low values can be subtle but quite effective.
zen-verb.txt · Last modified: 2021/09/02 22:03 (external edit)