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maybe this is wrong?

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kuba
2025-05-31 11:50:30 +02:00
parent 0a138420ad
commit 82a74db8b1
1 changed files with 2 additions and 2 deletions
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dsp/bs412.c
+2 -2
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@@ -3,12 +3,12 @@
#define LOG2_19000 log2f(19000.0f) #define LOG2_19000 log2f(19000.0f)
inline float dbr_to_deviation(float dbr) { inline float dbr_to_deviation(float dbr) {
return 19000.0f * powf(2.0f, dbr * 0.332193f); return 19000.0f * powf(10.0f, dbr / 20.0f);
} }
inline float deviation_to_dbr(float deviation) { inline float deviation_to_dbr(float deviation) {
if(deviation == 0.0f) return -100.0f; if(deviation == 0.0f) return -100.0f;
return 10.0f * (log2f(deviation) - LOG2_19000) * 0.30103f; return 20.0f * (log2f(deviation) - LOG2_19000) * 0.30103f;
} }
void init_modulation_power_measure(MPXPowerMeasurement* mpx, int sample_rate) { void init_modulation_power_measure(MPXPowerMeasurement* mpx, int sample_rate) {