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Prevent threshold from reaching zero

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This commit is contained in:
Robbert van der Helm 2022-07-22 23:36:04 +02:00
parent 8fbdc43ce3
commit 43f86bcc85
1 changed files with 4 additions and 2 deletions
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6
plugins/spectral_compressor/src/compressor_bank.rs
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@ -528,7 +528,9 @@ impl CompressorBank {
{ {
let offset = log2_center_freq - log2_freq; let offset = log2_center_freq - log2_freq;
let threshold_db = intercept + (slope * offset) + (curve * offset * offset); let threshold_db = intercept + (slope * offset) + (curve * offset * offset);
*threshold = util::db_to_gain(threshold_db) // This threshold may never reach zero as it's used in divisions to get a gain ratio
// above the threshold
*threshold = util::db_to_gain(threshold_db).max(f32::EPSILON);
} }
} }
@ -545,7 +547,7 @@ impl CompressorBank {
{ {
let offset = log2_center_freq - log2_freq; let offset = log2_center_freq - log2_freq;
let threshold_db = intercept + (slope * offset) + (curve * offset * offset); let threshold_db = intercept + (slope * offset) + (curve * offset * offset);
*threshold = util::db_to_gain(threshold_db) *threshold = util::db_to_gain(threshold_db).max(f32::EPSILON);
} }
} }