diff --git a/src/dsp/mod.rs b/src/dsp/mod.rs
index 2061310..65f2a21 100644
--- a/src/dsp/mod.rs
+++ b/src/dsp/mod.rs
@@ -1156,7 +1156,8 @@ impl Node {
             ) => {
                 match self {
                     Node::$v1 => {},
-                    $(Node::$variant { node } => node.process(ctx, atoms, params, inputs, outputs, led),)+
+                    $(Node::$variant { node } =>
+                        node.process(ctx, atoms, params, inputs, outputs, led),)+
                 }
             }
         }
diff --git a/tests/sample_sin.wav b/tests/sample_sin.wav
new file mode 100644
index 0000000..af5f62d
Binary files /dev/null and b/tests/sample_sin.wav differ