radio95/fm95
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change frequency filters implemententaton

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This commit is contained in:
KubaPro010
2025-01-31 17:40:47 +01:00
parent 2557c19b2e
commit 9b4cec73c9
4 changed files with 66 additions and 89 deletions
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20
src/fm95.c
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@@ -11,7 +11,7 @@
#define DEFAULT_STEREO_SSB 0
#define DEFAULT_CLIPPER_THRESHOLD 1.0f
#define DEFAULT_SOFT_CLIPPER_THRESHOLD 0.95f
#define DEFAULT_ALSA_OUTPUT 1
#define DEFAULT_ALSA_OUTPUT 0
#define DEFAULT_SCA_FREQUENCY 67000.0f
#define DEFAULT_SCA_DEVIATION 7000.0f
#define DEFAULT_SCA_CLIPPER_THRESHOLD 1.0f // Full deviation, if you set this to 0.5 then you may as well set the deviation to 3.5k
@@ -28,7 +28,7 @@
#define SAMPLE_RATE 192000
#define INPUT_DEVICE "FM_Audio.monitor"
#define OUTPUT_DEVICE "plughw:1,0"
#define OUTPUT_DEVICE "alsa_output.pci-0000_00_14.2.analog-stereo"
#define MPX_DEVICE "FM_MPX.monitor"
// #define SCA_DEVICE ""
@@ -470,16 +470,16 @@ int main(int argc, char **argv) {
init_preemphasis(&preemp_l, preemphasis_tau, SAMPLE_RATE);
init_preemphasis(&preemp_r, preemphasis_tau, SAMPLE_RATE);
FrequencyFilter lpf_l, lpf_r;
init_lpf(&lpf_l, LPF_CUTOFF, SAMPLE_RATE);
init_lpf(&lpf_r, LPF_CUTOFF, SAMPLE_RATE);
BiquadFilter lpf_l, lpf_r;
init_lpf(&lpf_l, LPF_CUTOFF, 1.0f, SAMPLE_RATE);
init_lpf(&lpf_r, LPF_CUTOFF, 1.0f, SAMPLE_RATE);
FrequencyFilter hpf_l, hpf_r;
init_hpf(&hpf_l, HPF_CUTOFF, SAMPLE_RATE);
init_hpf(&hpf_r, HPF_CUTOFF, SAMPLE_RATE);
BiquadFilter hpf_l, hpf_r;
init_hpf(&hpf_l, HPF_CUTOFF, 1.0f, SAMPLE_RATE);
init_hpf(&hpf_r, HPF_CUTOFF, 1.0f, SAMPLE_RATE);
FrequencyFilter bass_hpf;
init_hpf(&bass_hpf, CENTER_BASS, SAMPLE_RATE);
BiquadFilter bass_hpf;
init_hpf(&bass_hpf, CENTER_BASS, 1.0f, SAMPLE_RATE);
// #endregion
signal(SIGINT, stop);