diff --git a/examples/mutable_streaming_node.jl b/examples/mutable_streaming_node.jl
new file mode 100644
index 0000000..ba6b681
--- /dev/null
+++ b/examples/mutable_streaming_node.jl
@@ -0,0 +1,40 @@
+# This demos how real-time audio manipulation can be done using AudioNodes. To
+# run it, hook up some input audio to your default recording device and run the
+# script. The demo will run for 10 seconds alternating the node between a muted
+# and unmuted state
+using AudioIO
+
+type MutableNode <: AudioIO.AudioNode
+  active::Bool
+  deactivate_cond::Condition
+  muted::Bool
+
+  function MutableNode(muted::Bool)
+    new(false, Condition(), muted)
+  end
+end
+
+function MutableNode()
+  MutableNode(false)
+end
+
+import AudioIO.render
+function render(node::MutableNode, device_input::AudioIO.AudioBuf, info::AudioIO.DeviceInfo)
+  return device_input .* !node.muted, AudioIO.is_active(node)
+end
+
+function mute(node::MutableNode)
+  node.muted = true
+end
+
+function unmute(node::MutableNode)
+  node.muted = false
+end
+
+mutableNode = MutableNode()
+AudioIO.play(mutableNode)
+muteTransitions = { true => unmute, false => mute }
+for i in 1:10
+  sleep(1)
+  muteTransitions[mutableNode.muted](mutableNode)
+end