diff --git a/.gitignore b/.gitignore
index 52b3f2f..b36ff80 100644
--- a/.gitignore
+++ b/.gitignore
@@ -93,7 +93,7 @@ docs/_build/
 target/
 
 # Contents of tmp folder
-tmp/*
+tmp/*.wav
 
 # Jupyter Notebook
 .ipynb_checkpoints
diff --git a/tmp/.placeholder b/tmp/.placeholder
new file mode 100755
index 0000000..e69de29