Robbert van der Helm b9031ecd2f Fix sidechain matching + soft knee in SC

These coefficients change with the thresholds.

2023-03-27 17:26:38 +02:00

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[Unreleased]

The default window size changed to 2048 since this offers a slightly better tradeoff between faster timings and more spectral precision. Existing instances are not affected.

Fixed the soft-knee options in the sidechain matching mode. They previously didn't account for the changing compressor thresholds, which could result in unexpected loud volume spikes.
The sidechain matching mode now caps the relative thresholds to behave more consistently with quiet inputs.

Reworked the resetting behavior again to smoothly fade the timings in after a reset to allow the envelop followers to more gently settle in.

Fixed a regression from version 0.4.0 that caused the envelope followers to always be stuck at their fastest timings.

Added an analyzer that visualizes the target curve, the spectral envelope followers and gain reduction. The current version will be expanded a bit in a future with tooltips and labels to show more information.

The envelope followers reset in a smarter way after the plugin resumes from sleep or when the window size has changed. This avoids loud spikes in these situations when using extreme compression settings and slow timings.
The default window overlap amount setting has changed to 16x. Existing patches are not affected.
On Windows, clicking on the plugin's name no longer takes you to Spectral Compressor's home page. This is a temporary workaround for an issue with an underlying library.

Added the version number and a link to the GitHub page to the GUI to make it easier to determine which version you're using.

The DC filter option is gone. It was used to prevent upwards compression from amplifying DC and very low subbass signals in the original Spectral Compressor, but this iteration of Spectral Compressor doesn't need it and the feature only caused confusion.

The compression part of Spectral Compressor has been rewritten to have theoretically smoother and cleaner transfer curves and to be slightly more performant.
The downwards hi-freq rolloff parameter now correctly scales the ratios. Previously the parameter didn't do much.