# UBACCH Audio Plug-In Release Notes

Release Notes
UBACCH Audio Plug-In

GUIDE: https://cdn.shopify.com/s/files/1/0752/4083/3333/files/uBACCH_Audio_-_User_Guide_v2.pdf?v=1716500597

Overview:

The uBACCH Audio Plug-In is a VST3 plugin that implements BACCH's Universal BACCH 3D for Speakers algorithm (uBACCH).

uBACCH is a universal BACCH filter tuned solely by the angle of the speakers.

The uBACCH Audio Plug-In simply requires user input of the angle of the speakers compared to the listener to create a 
spatial audio soundstage that can come close to that of a measured custom BACCH (c-BACCH) filter, if the speakers are 
well matched in frequency and phase response and the listening configuration/environment is symmetrical and balanced.

More information can be found at: https://bacch.com/ubacch
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Release Notes Version: v1.4.5
Release Notes Date: 09/4/2024

Fixes:
- New Feature - Headroom Toggle - Add 6dB of headroom
- Fix Center Gain Volume Range

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Release Notes Version: v1.4.4
Release Notes Date: 08/13/2024

Fixes:
- Update Initialization Process to run under non-realtime mode in Audirvana

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Release Notes Version: v1.4.3
Release Notes Date: 07/08/2024

Fixes:
- Update to handle block sizes other than 2^N

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Release Notes Version: v1.4.2
Release Notes Date: 05/14/2024

Fixes:
- UI update to Center Parameter


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Release Notes Version: v1.4.1
Release Notes Date: 05/14/2024

- Re-Enable limiter to avoid distortion

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Release Notes Version: v1.4.0
Release Notes Date: 05/01/2024

 - Improvements to UI and usability
 - New Feature: Master On/Off switch
 - New Feature: Center Gain allows the listener to dial down the volume of the center image in order to increase depth and immersion of the BACCH image. The u-BACCH filter is only applied to the side images, and rather leaves the center perfectly intact.

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Release Notes Version: v1.3.0
Release Notes Date: 05/19/2023

Issues:
1) Activating a purchased license on a trial licensed uBACCH Plug-In causes the plug-in to output silence.
   Affected platforms:  macOS Intel/Arm
   Workaround: If upon activating a purchased license the plug-in outputs silence:
	* remove the uBACCH Audio Plug-In from the DAW diagram
	* re-add the uBACCH Audio Plug-In to the diagram


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Release Notes Version: v1.2.1
Release Notes Date: 06/04/2023

Issues:
1) Operating at longer blocksizes produces irregularities in audio.
   Workaround: Set ideal blocksizes for given samplerates to the following
    44.1k/48k  - 512
    88.2k/96k  - 1024
    176.4/192k - 2048

Fixes:
- Fixed occasional glitch at large blocksize
- Improved License Handling & Identification