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quadro?

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This commit is contained in:
kuba
2024-12-31 14:23:26 +01:00
parent 64538478e4
commit c96fe78618
4 changed files with 324 additions and 12 deletions
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sca_mod.c
+5 -5
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@@ -74,14 +74,14 @@ float get_next_sample(Oscillator *osc) {
typedef struct {
float alpha;
float prev_sample;
} PreEmphasis;
} Emphasis;
void init_pre_emphasis(PreEmphasis *pe, float sample_rate) {
void init_emphasis(Emphasis *pe, float sample_rate) {
pe->prev_sample = 0.0f;
pe->alpha = exp(-1 / (PREEMPHASIS_TAU * sample_rate));
}
float apply_pre_emphasis(PreEmphasis *pe, float sample) {
float apply_pre_emphasis(Emphasis *pe, float sample) {
float audio = sample-pe->alpha*pe->prev_sample;
pe->prev_sample = audio;
return audio*2;
@@ -191,8 +191,8 @@ int main() {
Oscillator osc;
init_oscillator(&osc, FREQUENCY, SAMPLE_RATE);
#ifdef PREEMPHASIS
PreEmphasis preemp;
init_pre_emphasis(&preemp, SAMPLE_RATE);
Emphasis preemp;
init_emphasis(&preemp, SAMPLE_RATE);
#endif
#ifdef LPF
LowPassFilter lpf;