First PPM experiment

sound_server.h

@@ -0,0 +1,12 @@
+#pragma once
+#include <cstdint>
+
+struct sound_producer_1bit {
+  // false = off, true = on
+  virtual bool tick() = 0;
+};
+
+struct sound_server_1bit {
+  sound_server_1bit(uint16_t samplerate, sound_producer_1bit& producer);
+  ~sound_server_1bit();
+};