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v1.1.1 Sound Radix PI

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Sound Radix PI
  

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Sound Radix PI

Phase Interaction Mixer – ensures phase correlation in DAW summing

PI is an innovative, multi-channel phase interactions mixer plug-in engine for Mac and PC.


Highlights

sound radix piGood phase relationships are key to a great sounding mix. When tracks are summed into a stereo mix bus, instruments tend to overlap and interact with each other across the frequency range and phase position. A bass track could be temporarily out of phase with the kick or rhythm guitar tracks, and when summed together the two instruments would cancel each other out over the overlapping frequency range, causing a temporary “hole” in the low end. Similarly, a snare track could end up sounding thin in a mix when the toms' resonance is out of phase with the snare.

Enter PI.

Designed to enhance any mix, PI dynamically rotates the phase of the individual mixer channels to achieve maximum phase correlation within the mix. PI minimizes negative interaction and significantly improves the overall sound of the mix. Just drop PI into the last insert slot of each of your DAW mixer channels and listen.

WHY PI

PI works to improve the summing of your favorite Digital Audio Workstation. PI minimizes overlapping frequency cancellations between instruments within the mix, improves mono compatibility, and brings back the depth and focus lost when out-of-phase frequencies in the mix cancel each other out.

DYNAMIC PHASE ROTATION

Instruments with similar frequency content, such as bass and bass-drum, can be temporarily out of phase and cancel each other's fundamental frequencies. The resulting sound is often described as “thin” and “hollow”. Because those interactions happen randomly across varying frequencies and to different degrees, this effect cannot be remedied using a simple, fixed phase-rotator or equalizer.

PI constantly analyzes the phase correlation of each track and dynamically adjusts their respective phases to achieve optimal correlation and maintain the full depth and timbre of the instruments in the arrangement.

TRUE MULTI-TRACK AWARENESS

PI utilizes a unique central background processor to sample-accurately analyze and process the phase position of each track to achieve the optimal phase relationships in your mix in real-time.

MULTI-BAND PHASE CORRELATION METER

PI's multi-band Phase Correlation Meter displays the phase correlation of each frequency band as well as overall phase correlation.

GROUPS & GLOBAL OPERATION MODES

Use any of the 64 groups to bind multi-microphones recording or related instruments to further optimize their phase relationships in the mix.

Two operation modes enable Full Range phase optimization or focus on the Low Frequency range of your mix.

Features

  • Groundbreaking, true multi-channel engine for optimizing phase interactions
  • Track grouping for related instruments and multi-mic setups
  • Full Range and Low Frequency global optimization modes
  • Unique multi-channel display for viewing phase relationships within the mix
  • Internal sample-accurate routing, no side-chaining required

Updates

What's new in PI v1.1?

Changes

  • Pi now uses iLok protection. (no iLok key required).
  • Added support for VST3 bypass.
  • Pro Tools (AAX): Added Pro Tools automation key-command support.
  • Pro Tools (AAX): Improved Control Surface support.
  • Audio pass-thru when transport is stopped.
  • Pro Tools TDM: Users must now turn off "Report Latency" explicitly.
  • Removed support for Windows XP.

Bug Fixes

  • Fixed UI not showing under Wavelab on macOS.
  • Fixed possible denormalization under VST/VST3.
  • Various Bugfixes.
  • Mac: Intel Core CPU, 2GB RAM, OS X 10.6 or higher
  • Windows: Intel Core CPU, 2GB RAM, graphics card supporting OpenGL 2.1, Windows 7 or higher
  • Plug-in formats: AAX, Audio Unit, RTAS, VST, VST3
  • Free iLok account and iLok License Manager (iLok USB key is not required)

What's new in Version 1.1.1

2018-06-03:

Fixed

  • Logic X could provide inaccurate sample-position.
  • Cubase (VST3): Inaccurate sample position while looping cause clicks & pops.
  • Improved host compatibility.
  • Improved Windows installer behavior.


What's new in Version 1.1 - iLok Support

2017-12-19:

Changes

  • Pi now uses iLok protection. (no iLok key required).
  • Added support for VST3 bypass.
  • Pro Tools (AAX): Added Pro Tools automation key-command support.
  • Pro Tools (AAX): Improved Control Surface support.
  • Audio pass-thru when transport is stopped.
  • Pro Tools TDM: Users must now turn off "Report Latency" explicitly.
  • Removed support for Windows XP.

Bug Fixes

  • Fixed UI not showing under Wavelab on macOS.
  • Fixed possible denormalization under VST/VST3.
  • Various Bugfixes.


Version 1.0.11

2015-05-11:

Bug Fixes

Fixed and optimized CPU Utilization
Improved compatibility with older GPUs


Version 1.0.10

2015-03-23:

New Features and Improvements

  • Accessibility improvements for Pro Tools with Apple VoiceOver
  • Improved Unicode input handling

Bug Fixes

  • Fixed AAX 32-bit issues under Windows 
  • Fixed RTAS issues 
  • Fixed AU Validation under Mac OS 10.6.x 
  • Dropdown selection now works properly


Version 1.0.9

2015-03-18:

Bug fixes

  • Fixed AAX 32-bit issues under Windows
  • Fixed RTAS issues
  • Fixed AU Validation under Mac OS 10.6.x

Version 1.0.8

2015-01-29:

New Features and Improvements

  • Trial period can now be further extended upon request
  • Significantly reduced windows installer loading time

Bug Fixes

  • Fixed silence in Logic Pro X 10.1 due to change in host sample time reporting
  • Fixed bypass not working correctly in Pro-Tools
  • Fixed crash on windows with old OpenGL drivers
  • Fixed VST3 and AAX 32-bit issues


Version 1.0.7 - VST3

2014-04-30:

New Features

  • VST3 format available
  • OS X: Installer is signed for Gatekeeper

Bug fixes

  • Windows: Fixed crashes in Pro Tools in machines with Nvidia GPUs
  • Fixed default preset in Pro Tools 11 (plugin started as disabled)


Version 1.0.6 Pro Tools 11 Compatability Fix

2013-06-24:

  • Pi AAX now works in the released version of Pro Tools 11.


Version 1.0.5 - AAX

2013-04-08:

New Features

  • AAX compatibility. 32 and 64 bit, Pro Tools 11 compatible
  • Option to avoid reporting latency to the host. Useful for hosts with limited latency-compensation support.

Bugfixes

  • Fixed rare crashes in Windows.

Version 1.0.4

2013-04-08:

New Features

CHNL WEIGHT

Since gain plays a major role in channels' phase influence and sensitivity in a mix, some program material can get strongly influenced by other channels in the mix when their level is relatively low or when they decay into lower levels. With CHNL WEIGHT It is now possible to manually adjust the channel's low level and overall phase sensitivity and intensity within the mix. As CHNL WEIGHT increases - the less sensitive and more influential it'll be to other channels in the mix. This can help minimize artifacts on some program material, especially on low level, mid-range sustain notes and tails.

GLOBAL LOOKAHEAD BUFFER

Allows the use of larger audio buffers and other high latency plug-ins. If Pi doesn't get all the samples it needs in time due to a larger audio buffer or other high latency plug-in, it can't do its magic and it'll displays Sync Errors. If you're getting Sync Errors messages, Increase the lookahead buffer until they're gone.

Click on the Sound Radix logo to open the About screen and access this setting.

Bugfixes

  • Major performance improvements in Windows.
  • Fixed bug causing drop-outs in some VST hosts.
  • Fixed keyboard focus issues in Cubase and Pro Tools in Windows.


Version 1.0.1 - Bug fix Release

2012-12-06:

What's New

  • Fixed crashes in Windows.
  • Fixed Sync Errors.
  • Improved CPU usage.
  • Improved latency behavior with Pro Tools 9.


Version 1.0.0 - Initial Release

2012-11-20:

  • Pi - Phase Interactions Mixer released to the world for the first time!