radio95/fm95
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KubaPro010
2025-03-27 18:05:57 +01:00
parent 2b8122c115
commit 0983b8db90
1 changed files with 9 additions and 7 deletions
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16
src/fm95.c
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@@ -414,9 +414,11 @@ int main(int argc, char **argv) {
init_preemphasis(&preemp_l, preemphasis_tau, sample_rate); init_preemphasis(&preemp_l, preemphasis_tau, sample_rate);
init_preemphasis(&preemp_r, preemphasis_tau, sample_rate); init_preemphasis(&preemp_r, preemphasis_tau, sample_rate);
Biquad lpf_l, lpf_r; Biquad lpf1_l, lpf1_r, lpf2_l, lpf2_r;
init_butterworth_lpf(&lpf_l, 15000, 192000); init_butterworth_lpf(&lpf1_l, 15000, 192000);
init_butterworth_lpf(&lpf_r, 15000, 192000); init_butterworth_lpf(&lpf1_r, 15000, 192000);
init_butterworth_lpf(&lpf2_l, 15000, 192000);
init_butterworth_lpf(&lpf2_r, 15000, 192000);
signal(SIGINT, stop); signal(SIGINT, stop);
signal(SIGTERM, stop); signal(SIGTERM, stop);
@@ -473,10 +475,10 @@ int main(int argc, char **argv) {
float ready_l = apply_preemphasis(&preemp_l, l_in); float ready_l = apply_preemphasis(&preemp_l, l_in);
float ready_r = apply_preemphasis(&preemp_r, r_in); float ready_r = apply_preemphasis(&preemp_r, r_in);
ready_l = biquad(&lpf_l, ready_l); ready_l = biquad(&lpf1_l, ready_l);
ready_l = biquad(&lpf_r, ready_r); ready_l = biquad(&lpf1_r, ready_r);
ready_l = biquad(&lpf_l, ready_l); ready_l = biquad(&lpf2_l, ready_l);
ready_l = biquad(&lpf_r, ready_r); ready_l = biquad(&lpf2_r, ready_r);
ready_l = hard_clip(ready_l*audio_volume, clipper_threshold); ready_l = hard_clip(ready_l*audio_volume, clipper_threshold);
ready_r = hard_clip(ready_r*audio_volume, clipper_threshold); ready_r = hard_clip(ready_r*audio_volume, clipper_threshold);