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change gain reduction logic

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KubaPro010
2025-03-29 21:12:13 +01:00
parent 9b5bd5bd3e
commit c845798bd1
1 changed files with 4 additions and 9 deletions
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src/fm95.c
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@@ -527,15 +527,10 @@ int main(int argc, char **argv) {
float mpower = measure_mpx(&power, output[i] * 75000); float mpower = measure_mpx(&power, output[i] * 75000);
if (mpower > mpx_power) { if (mpower > mpx_power) {
float excess_power = mpower - mpx_power; float excess = mpower - mpx_power;
float reduction_factor_db = excess_power; float attenuation_db = excess * 0.5f;
float attenuation_linear = dbr_to_deviation(attenuation_db)/75000;
float reduction_factor_linear = powf(10.0f, -reduction_factor_db / 20.0f); output[i] *= attenuation_linear;
output[i] *= reduction_factor_linear;
mpower = measure_mpx(&power, output[i] * 75000);
printf("Reduced overpower: %f -> %f (target: %f)\n", mpower + excess_power, mpower, mpx_power);
} }
output[i] *= master_volume; output[i] *= master_volume;