+ // sin(2 * pi * f / F) and similar for cos. Used for fast sine generation.
+ // Zero when no audio.
+ float audio_sin = 0.0f, audio_cos = 0.0f;
+ float audio_real = 0.0f, audio_imag = 0.0f; // Current state of the audio phaser.
+ float audio_ref_level;
+