diff --git a/.gitignore b/.gitignore
index 892ddfc..8efca60 100644
--- a/.gitignore
+++ b/.gitignore
@@ -40,3 +40,9 @@ portaudio-2.0.pc
 *.exe
 *.out
 *.app
+
+# Visual Studio 2017/2019 state folder
+.vs/
+
+# Visual Studio CMake build output folder 
+out/