xaoc-devices-sewastopol

XAOC Devices Sewastopol

Audio Port & Voltage Extractor

8 HP Eurorack module

Sewastopol combines an audio input/output and external-effects interface with an independently usable envelope follower and voltage comparator.

Features

  • External effects adaptor with send and return level conversion.
  • Audio input and output interface for external instruments and modular equipment.
  • Bipolar peak-detecting envelope follower with stable, ripple-free output for constant-level signals.
  • Switchable low-cut filter for the envelope-follower input.
  • Voltage comparator with optional hysteresis.
  • Optional soft clipping on the import preamplifier path.

Controls & Jacks (19)

  • Threshold— Sets the comparator threshold used to generate gate and trigger signals.
  • FX Send Export— Sends the attenuated export signal to an external effects chain.
  • Import Gain— Sets the gain used to amplify the returning or externally imported signal to modular level.
  • FX Return Import— Receives the processed signal returning from an external effects chain.
  • Export Level— Attenuates the Export signal before it is sent to external equipment.
  • Envelope Release— Sets the envelope follower release time while retaining rapid transient response.
  • Gate Out— Outputs a gate when the compared voltage crosses the threshold.
  • Low End Cut— Selects bypass, 33 Hz low-cut, or 3 kHz high-pass filtering for the envelope-follower input.
  • Follower In— Accepts an audio signal for independent envelope-following analysis, breaking the Import normalization.
  • Comparator In— Accepts a voltage for direct comparison, breaking the envelope-follower normalization.
  • Gate State— The separate indicator directly beneath Gate Out shows gate activity.
  • Envelope Out— Outputs the extracted envelope voltage.
  • Envelope Level— Indicates the extracted envelope-voltage range.
  • Trigger Pulse— The separate indicator directly beneath Trigger Out shows trigger activity.
  • Trigger Out— Outputs a trigger when the compared voltage crosses the threshold.
  • Export— Receives dry modular audio for attenuation before it leaves the module at FX Send Export.
  • Export Overload— Indicates overload on the export path.
  • Import Overload— Indicates overload on the import preamplifier path.
  • Import— Outputs the amplified imported signal at modular level; it is normalled to the envelope follower.

How-To Guides

  • Use an external effects chain
  • Follow an independent audio source

Explore the interactive Sewastopol panel on BleepDex — tap any control to learn what it does.

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