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Code Issues Activity

add soft clipping

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This commit is contained in:
KubaPro010
2025-01-27 10:51:51 +01:00
parent 6af57685fd
commit 59ec78948a
4 changed files with 73 additions and 41 deletions
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20
lib/filters.c
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@@ -74,7 +74,7 @@ void init_hpf(FrequencyFilter* filter, float cutoffFreq, float sampleRate) {
filter->index = 0;
}
float apply_freqeuncy_filter(FrequencyFilter* filter, float input) {
float apply_frequency_filter(FrequencyFilter* filter, float input) {
// Shift delay line
filter->delay[filter->index] = input;
@@ -92,6 +92,24 @@ float apply_freqeuncy_filter(FrequencyFilter* filter, float input) {
return output;
}
float hard_clip(float sample, float threshold) {
if (sample > threshold) {
return threshold; // Clip to the upper threshold
} else if (sample < -threshold) {
return -threshold; // Clip to the lower threshold
} else {
return sample; // No clipping
}
}
float soft_clip(float sample, float threshold) {
if (fabs(sample) <= threshold) {
return sample; // Linear region
} else {
float sign = (sample > 0) ? 1.0f : -1.0f;
return sign * (threshold + (1.0f - threshold) * pow(fabs(sample) - threshold, 0.5f));
}
}
void init_delay_line(DelayLine *delay_line, int max_delay) {
delay_line->buffer = (float *)calloc(max_delay, sizeof(float));
delay_line->size = max_delay;