From f58e278c857150deb4f382450343bfb75c84ba67 Mon Sep 17 00:00:00 2001
From: Robbert van der Helm <mail@robbertvanderhelm.nl>
Date: Sat, 23 Jul 2022 00:03:22 +0200
Subject: [PATCH] Fix offsets in threshold calculations

---
 plugins/spectral_compressor/src/compressor_bank.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/plugins/spectral_compressor/src/compressor_bank.rs b/plugins/spectral_compressor/src/compressor_bank.rs
index bcead84b..fc05c967 100644
--- a/plugins/spectral_compressor/src/compressor_bank.rs
+++ b/plugins/spectral_compressor/src/compressor_bank.rs
@@ -586,7 +586,7 @@ impl CompressorBank {
                 .iter()
                 .zip(self.downwards_thresholds.iter_mut())
             {
-                let offset = log2_center_freq - log2_freq;
+                let offset = log2_freq - log2_center_freq;
                 let threshold_db = intercept + (slope * offset) + (curve * offset * offset);
                 // This threshold may never reach zero as it's used in divisions to get a gain ratio
                 // above the threshold
@@ -605,7 +605,7 @@ impl CompressorBank {
                 .iter()
                 .zip(self.upwards_thresholds.iter_mut())
             {
-                let offset = log2_center_freq - log2_freq;
+                let offset = log2_freq - log2_center_freq;
                 let threshold_db = intercept + (slope * offset) + (curve * offset * offset);
                 *threshold = util::db_to_gain(threshold_db).max(f32::EPSILON);
             }