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do dbr properly

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This commit is contained in:
KubaPro010
2025-12-31 10:51:22 +01:00
parent 55dba6dbed
commit d3c39c4827
1 changed files with 2 additions and 2 deletions
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4
filter/bs412.c
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@@ -1,7 +1,7 @@
#include "bs412.h"
inline float dbr_to_deviation(float dbr) {
return 19000.0f * pow(10.0, dbr / 10.0);
return 19000.0f * sqrtf(pow(10.0, dbr / 10.0));
}
inline float deviation_to_dbr(float deviation) {
@@ -16,7 +16,7 @@ void init_bs412(BS412Compressor* mpx, uint32_t mpx_deviation, float target_power
mpx->sample_rate = sample_rate;
mpx->attack = expf(-1.0f / (attack * sample_rate));
mpx->release = expf(-1.0f / (release * sample_rate));
mpx->target = target_power;
mpx->target = deviation_to_dbr(19000.0f * pow(10.0, target_power / 10.0)); // target is expected to not be our rms format
mpx->gain = 0.0f;
mpx->max = max;
mpx->can_compress = 0;