stubbed out oscillator

main.cpp

@@ -3,9 +3,11 @@
 #include <stdio.h>
 #include <unistd.h>
 
+#include "oscillator.cpp"
+
 int main() {
     const int sample_rate = 48000;
-    const float freq = 50.0f;
+    const float freq = 600.0f;
     float phase = 0.0f;
     int duration = 1;