Initial commit

gen.c

@@ -0,0 +1,25 @@
+#include <math.h>
+#include <stdint.h>
+#include <stdio.h>
+
+#define SAMPLE_RATE 44100
+#define DURATION 5
+#define FREQUENCY 440
+#define VOLUME 0.3f
+
+int main() {
+    for (size_t i = 0; i < DURATION * SAMPLE_RATE; ++i) {
+        float t = (float)i / SAMPLE_RATE;
+        float volume = (float)INT16_MAX * VOLUME;
+        int16_t sample = 0;
+
+        sample = (int16_t)
+        (
+            (sinf(2*M_PI *   FREQUENCY * t) * volume) +
+            (sinf(2*M_PI * 2*FREQUENCY * t) * volume)
+        );
+        fwrite(&sample, sizeof(sample), 1, stdout);
+    }
+
+    return 0;
+}