nice refactors, now way cleaner to work with!

include/sound/wav.h

@@ -0,0 +1,18 @@
+#ifndef WAV_H
+#define WAV_H
+
+#include <stdio.h>
+#include <stdint.h>
+
+typedef struct {
+  FILE *file;
+  uint32_t sample_rate;
+  uint32_t samples_written;
+} wav_t;
+
+int wave_open(wav_t *wav, const char *filename, uint32_t sample_rate);
+void wave_write_sample(wav_t *wav, int16_t sample);
+
+void wave_close(wav_t *wav);
+
+#endif // !WAV_H