Overview

Get the best characteristics of multiple optical compressors

Brainworx’s bx_opto is an optical compressor plugin that blends the most desirable characteristics and anomalies of legendary light-dependent circuits. The color, character, and tone of various optical compressors have been combined into a single user-friendly interface. bx_opto is easy to operate and packed with gooey optical flavor that mixing engineers will love.

Add warm and open optical compression to your mixes

bx_opto delivers the warm and open sound many engineers look for in an optical compressor VST. It’s a top choice for compressing natural-sounding vocals, acoustic guitars, drum buses, and mix buses. This opto compressor has a generally slower attack time than other types of compressors, which helps preserve detail and articulation while musically gluing your mixes together.

Experience the dynamic sound of photocells

The bx_opto compressor VST reacts differently to various parts of a track, emulating the behavior of photocells that change attack and release times based on accumulated heat. This dynamic response, constantly in motion, delivers a pleasing sound that makes bx_opto a great vocal compressor plugin. A short attack and release are used to tame brief transients like snare hits, while a long attack and release are applied to sustained material such as basslines.

Control release time and shape transients with precision

There’s a Speed knob included with bx_opto that modifies the release time, which is a feature that many optical compressors lack. As a result, you can shape transients with precision and use bx_opto to process a wide assortment of audio material. Providing even more control, the Sidechain section includes four types of filters, allowing you to adjust the range of frequencies that bx_opto responds to.

Features

  • Warm, open, and dynamic optical compression
  • Peak Reduction knob
  • Speed control that affects the release time
  • Sidechain filter options
  • Mix control to apply parallel compression
  • Gain reduction meter
  • Output gain control
  • Included bx_opto Pedal plugin

Audio Examples

Industry Reviews

  • Tony Vincent

    Tony Vincent

    Artist/Producer (Queen’s We Will Rock You, Green Day’s American Idiot, The Voice)

    I find myself using this on bass guitar habitually. It adds a presence and clarity that is completely its own.

  • Jody Wisternoff

    Jody Wisternoff

    DJ, Producer (Way Out West)

    Lovely compressor, just sounds very natural and really glues the drum buss together nicely!!

Customer Reviews

  • Top

    ★★★★★
    by Top
    Top!!
  • ええやん!EEYAN-FUYU

    ★★★★★
    by 初音もっこり(え?)
    Read More
  • GOOD TONE

    ★★★★★
    by Kitar
    Easy to use but has a good sound.
  • Great Compressor

    ★★★★★
    by Aether Audio
    There's not really much to say. This thing is freaking amazing. It's clean and tight, and I use it on basically everything.
  • plugin

    ★★★★☆
    by beau3369
    awesome it almost changed my life

Specifications

Supported Plugin Formats
AAX DSP, AAX Native, AU, AAX AudioSuite, VST2, VST3

Supported Operating Systems
macOS 14 down to macOS 11
Windows 11 down to Windows 10

Mac
Intel, or Apple Silicon

PC
x64-compatible CPU

System Requirements
Display resolution: 1440 × 900px or 1280 × 960px or higher
Memory: 2 GB RAM

Downloads

With the Installation Manager you can select, download & install all the Plugin Alliance products. Select any and all formats you need for your system! Mac & PC.

ChangeLog

bx_opto

Brainworx bx_opto - Changelog

Version 1.10.1 (Oct 9, 2023)
- General: fixed CPU spikes on Mac OS

Version 1.10.0 (Aug 15, 2023)
- General: added native Apple Silicon compatibility for AAX
- General: added macOS Ventura support
- General: improved plugin loading time in the DAW
- General: fixed issue causing Logic to crash when closing the plugin UI
- General: improved font drawing behavior

Version 1.9 (Mar 15, 2022)
- General: added native Apple Silicon compatibility for VST3, VST2 and AU
- General: added macOS Monterey support
- General: added Windows 11 and Windows 10 21H1 support
- General: discontinued Windows 7 support
- General: discontinued macOS 10.9 and 10.11 support
- General: fixed metering behavior in block sizes of 2048 samples and higher

Version 1.8 (Mar 22, 2021)
- General: Compatibility with Logic on Apple Silicon devices via the Rosetta-2 layer
- General: Fixed possible artefacts when freezing or bouncing tracks in Pro Tools
- General: Fixed automation highlighting disappearing in Studio One
- General: Improved license dialog visibility in dark mode

Version 1.7 (May 27, 2020)
- General: Qualified for use with the Windows 10 May 2020 Update
- General: VST3: Fixed potential hangs in a DAW upon loading
- General: Fixed logical issues in undo / redo behavior
- General: Fixed UI resizing issues in Ableton Live on Windows
- General: Fixed audio processing initialization issues on amp and delay products

Version 1.6 (Nov 06, 2019)
- General: Qualified for use with macOS 10.15 Catalina
- General: Qualified for use with Windows 10 November 2019 Update
- General: Fixed plugin validation in Logic under macOS Catalina
- General: Fixed preset name restore in Logic when reopening a session
- General: Fixed opening authorization dialog triggering automation
- General: Improved instantiation times for plugins
- General: Improved license functionality and branding for subscription
- General: Removed 32-bit support on macOS and Windows

Version 1.5 (Jul 10, 2019)
- General: macOS 10.14.5 Update compatibility
- General: Windows 10 1903 Update compatibility
- General: Fixed activation issue in Windows hosts set to non-English language (e.g. Cakewalk)
- General: AU: Fixed issue with increased CPU and memory on reopening UI
- General: VST3: Fixed issue with adapting to host knob mode, and now prioritizing linear
- General: VST3: Fixed issue with VST3 preset permissions
- General: VST3: Improved synchronization between parameter states and some UI functions, e.g. toolbar reset


Version 1.4 (Nov 16, 2018)
- General: macOS Mojave compatibility
- General: Windows October 2018 update compatibility
- General: adding Windows High DPI support for VST2/3 plugins
- General: Fixed potential crashes in Cubase and other VST2 / VST3 DAWs
- General: Fixed potential CPU spikes and audio dropouts
- General: Fixed rendering in Pro Tools on the start of a session
- General: Fixed missing presets in Wavelab and other VST3 DAWs
- General: Improving keyboard control, fixing issues with catched keys preventing it from passing through to DAW
- General: Fixed parallel use of host sessions (e.g. with Live)

Version 1.3 (May 24, 2018)
- General: Microsoft Windows Redstone 4 compatibility
- General: Added computer keyboard control for plugin parameters
- General: Fixed Mouse scroll wheel not working in Windows 8
- General: Fixed an issue where plugins will not validate or load after a certain amount of plugins have been loaded (Windows)
- General: Fixed visual GUI freezes when adjusting DAW parameters, meters, analyzers (Mac)
- General: Fixed possible issue with Pick Pack licenses
- General: Small licenser stability fix

Version 1.2 (Oct 23, 2017)
- General: Mac OS High Sierra compatibility
- General: Fixed possible crash on online activation (Mac OS High Sierra)
- General: Fixed Logic Pro X not validating AU plugins (Mac OS High Sierra)
- General: Fixed CPU spikes and crashes with Cubase (Windows)
- General: Fixed bug that could lead to "AAE -6 error" in ProTools (Windows)
- General: Fixed crash with FL Studio
- General: Fixed crash when cross-opening plugins in various hosts
- General: Fixed crash when using mixdown in Audition
- General: Fixed crash in Final Cut Pro
- General: Fixed delayed parameter handling and crackling issues in Cubase with VST3
- General: Fixed bug where plugin settings were not saved in Harrison Mixbus
- General: Fixed bug that led to AAE error -9317 in ProTools when instantiating plugin
- General: Fixed bug where plugins did not render properly when "x ray" option is enabled in Sonar
- General: Modifications to factory presets were lost when reopening session
- General: Fixed mouse wheel behaviour with second monitor setup (Windows)
- Some plugins: Value labels do not appear every time when clicking on parameter in UI
- General: Faster instantiation time for plugins (Windows)
- General: Adding support for automation highlighting in Presonus StudioOne

Version 1.1.1 (Dec 20, 2016)
- General: Mac OS Sierra compatibility
- General: Fixed automation issues in AU and AAX
- General: Fixed license dialog use of special characters
- General: Improved AU preset support
- General: Performance improvements

Version 1.1 (Apr 1, 2016)
- General: Major UI codebase update
- General: Fixed possible crash when authorizing plugin
- General: Added gain reduction meter support for StudioOne 3
- General: Installers show version info in Windows "Programs And Features"
- Added EUCON pagetables

Version 1.0.2 (Jan 18, 2016)
- General codebase update
- Removing RTAS format support

Version 1.0.1 (Jul 18, 2015)
- General codebase update

Version 1.0 (Jun 22, 2015)
- Release version