init

2026-07-14 00:26:01 +02:00
commit a2f8c110c4
30 changed files with 3525 additions and 0 deletions
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+//
+// Created by bruno on 13. 7. 2026.
+//
+
+#ifndef AUDIOCODER_GOERTZEL_H
+#define AUDIOCODER_GOERTZEL_H
+
+typedef struct {
+    float coeff;
+
+    float s1;
+    float s2;
+} Goertzel;
+
+
+void goertzel_init(
+    Goertzel *g,
+    float freq,
+    float sampleRate,
+    int samples);
+
+
+void goertzel_add(
+    Goertzel *g,
+    float sample);
+
+
+float goertzel_energy(
+    Goertzel *g);
+
+int goertzel_bin_freq(
+        int freq,
+        int sampleRate,
+        int samples);
+
+#endif //AUDIOCODER_GOERTZEL_H