Change the default SC window size to 2048

plugins/spectral_compressor/CHANGELOG.md

@@ -6,6 +6,14 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic
 Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [Unreleased]
+
+### Changed
+
+- 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.
+
 ## [0.4.2] - 2023-03-22
 
 ### Changed