implement new audio engine

2026-06-05 20:30:12 +02:00
parent 16efeb2fde
commit 61eb9a8be5
24 changed files with 1021 additions and 440 deletions
@@ -0,0 +1,37 @@
+#pragma once
+#include <array>
+#include "AudioBuffer.h"
+
+namespace engine {
+
+class EqProcessor {
+public:
+    static constexpr int   BANDS = 10;
+    static constexpr float FREQS[BANDS] = {
+        32, 64, 125, 250, 500, 1000, 2000, 4000, 8000, 16000
+    };
+
+    EqProcessor();
+
+    void  setBand(int band, float dB);
+    float band(int band) const;
+
+    void process(AudioBuffer &buf);
+
+    void reset();
+
+    void setSampleRate(int sr);
+
+private:
+    void recomputeBiquad(int band);
+
+    int   m_sampleRate { 44100 };
+    float m_gainDb[BANDS] {};
+
+    float m_coeff[BANDS][5] {};
+
+    static constexpr int MAX_CH = 8;
+    float m_state[BANDS][MAX_CH][2] {};
+};
+
+} // namespace engine