1 files changed, 8 insertions, 0 deletions
diff --git a/src/audio/window.cc b/src/audio/window.cc
index b68c747..bcdd768 100644
--- a/src/audio/window.cc
+++ b/src/audio/window.cc
@@ -12,3 +12,11 @@ void hamming_window_512(float* window) {
         0.54f - 0.46f * cosf(2.0f * PI * (float)i / (float)(WINDOW_SIZE - 1));
   }
 }
+
+void hann_window_512(float* window) {
+  const float PI = 3.14159265358979323846f;
+  for (int i = 0; i < WINDOW_SIZE; ++i) {
+    window[i] =
+        0.5f - 0.5f * cosf(2.0f * PI * (float)i / (float)(WINDOW_SIZE - 1));
+  }
+}