radio95/fm95
0
1
Fork 0
mirror of https://github.com/radio95-rnt/fm95.git synced 2026-07-31 00:39:17 +02:00
Code Issues Activity

change frequency filters implemententaton

Browse Source
This commit is contained in:
kuba
2025-01-31 17:40:47 +01:00
parent 2557c19b2e
commit 9b4cec73c9
4 changed files with 66 additions and 89 deletions
Download Patch File Download Diff File Expand all files Collapse all files
lib/filters.h
+3 -9
View File
@@ -15,15 +15,9 @@ typedef struct {
void init_preemphasis(BiquadFilter *filter, float tau, float sample_rate);
float apply_preemphasis(BiquadFilter *filter, float input);
typedef struct {
float coeffs[FILTER_TAPS];
float delay[FILTER_TAPS];
int index;
} FrequencyFilter;
void init_lpf(FrequencyFilter* filter, float cutoffFreq, float sampleRate);
void init_hpf(FrequencyFilter* filter, float cutoffFreq, float sampleRate);
float apply_frequency_filter(FrequencyFilter* filter, float input);
void init_lpf(BiquadFilter* filter, float cutoffFreq, float qFactor, float sampleRate);
void init_hpf(BiquadFilter* filter, float cutoffFreq, float qFactor, float sampleRate);
float apply_frequency_filter(BiquadFilter* filter, float input);
float hard_clip(float sample, float threshold);
float soft_clip(float sample, float threshold);