diff --git a/doc/8-advanced/osc.md b/doc/8-advanced/osc.md
index db625e71c..de58d70f4 100644
--- a/doc/8-advanced/osc.md
+++ b/doc/8-advanced/osc.md
@@ -1,6 +1,6 @@
 # oscilloscope
 
-the Oscilloscope shows the waveform of the mix of all currently playing sounds.
+the Oscilloscope shows the audio output as a waveform.
 
 ![oscilloscope view](osc.png)