/ (2.0f * PI * LP_FC); const float aLP = dt / (rcLP + dt); double sumSq = 0.0; for (int i=0; i<n; ++i) { // INMP441 gives 24-bit audio inside a 32-bit slot. Relative scaling is sufficient. float x = (float)samples[i] / 2147483648.0f; hpY = aHP * (hpY + x - hpXPrev); hpXPrev = x; lpY += aLP * (hpY - lpY); sumSq += (double)lpY * (double)lpY; } return sqrtf((float)(sumSq / n)); } void updateAudio(float rms) { // Fast peak envelope, slow adaptive
in
„Auftragsarbeit gesucht: ESP32 / RGBW / Audio-Reactive Feuerhand-Umbau“
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Markt
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