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rms?

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KubaPro010
2025-12-30 22:31:50 +01:00
parent 3146e838e0
commit 37b2ff7857
1 changed files with 2 additions and 2 deletions
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4
filter/bs412.c
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@@ -6,7 +6,7 @@ inline float dbr_to_deviation(float dbr) {
inline float deviation_to_dbr(float deviation) { inline float deviation_to_dbr(float deviation) {
if (deviation < 1e-6f) return -100.0f; if (deviation < 1e-6f) return -100.0f;
return 10*log10f(deviation/19000); return 10*log10f((deviation*deviation)/((19000.0f / sqrtf(2.0f)) * (19000.0f / sqrtf(2.0f))));
} }
void init_bs412(BS412Compressor* mpx, uint32_t mpx_deviation, float target_power, float attack, float release, float max, uint32_t sample_rate) { void init_bs412(BS412Compressor* mpx, uint32_t mpx_deviation, float target_power, float attack, float release, float max, uint32_t sample_rate) {
@@ -38,7 +38,7 @@ static inline float soft_clip_tanh(float sample, float threshold) {
float bs412_compress(BS412Compressor* mpx, float sample) { float bs412_compress(BS412Compressor* mpx, float sample) {
mpx->avg_power += mpx->alpha * ((sample * sample * mpx->mpx_deviation * mpx->mpx_deviation) - mpx->avg_power); mpx->avg_power += mpx->alpha * ((sample * sample * mpx->mpx_deviation * mpx->mpx_deviation) - mpx->avg_power);
float avg_deviation = sqrtf(mpx->avg_power) * sqrtf(2); float avg_deviation = sqrtf(mpx->avg_power);
float modulation_power = deviation_to_dbr(avg_deviation); float modulation_power = deviation_to_dbr(avg_deviation);
if(mpx->target <= -100.0f) { if(mpx->target <= -100.0f) {