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Code Issues Activity

the peak limiter is too harsh

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kuba
2025-04-04 15:37:20 +02:00
parent 615fd2253e
commit 044d46544f
1 changed files with 0 additions and 5 deletions
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src/fm95.c
-5
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@@ -545,11 +545,6 @@ int main(int argc, char **argv) {
float excess_power = mpower - mpx_power; float excess_power = mpower - mpx_power;
audio *= powf(10.0f, -excess_power / 20.0f); audio *= powf(10.0f, -excess_power / 20.0f);
} }
float mpower_peak = deviation_to_dbr((audio+mpx) * mpx_deviation);
if (mpower_peak > (mpx_power+0.1f)) { // According to the FM22 standard (https://cept.org/documents/fm-22/16691/fm22-14-14_fm-broadcast-deviation-and-mpx-measurements) the peak power should never be more than 0.1 dB above the designated power
float excess_power = mpower_peak - (mpx_power+0.1f);
audio *= powf(10.0f, -excess_power / 20.0f);
}
output[i] = (audio+mpx)*master_volume; output[i] = (audio+mpx)*master_volume;
if(rds_on || stereo) advance_oscillator(&osc); if(rds_on || stereo) advance_oscillator(&osc);