better integrations

quantum/audio.h

@@ -0,0 +1,11 @@
+#include <stdint.h>
+#include <stdbool.h>
+#include <avr/io.h>
+#include <util/delay.h>
+
+void play_sample(uint8_t * s, uint16_t l, bool r);
+void play_note(double freq, int vol);
+void stop_note(double freq);
+void stop_all_notes();
+void init_notes();
+void play_notes(float (*np)[][2], uint8_t n_length, bool n_repeat);