--- a/audio.rst	Mon Oct 13 16:43:17 2014 +0300
+++ b/audio.rst	Fri Oct 17 16:06:40 2014 +0300
@@ -34,6 +34,14 @@
 
   $ pactl list
 
+Play simple sounds.
+===================
+::
+
+  $ sudo apt-get install sox
+  $ play -n synth sin 440 vol -40dB
+  $ play -n synth 10 square 100-10000 synth sin fmod 100 vol -40dB
+
 Suitable convertors?
 ====================
 ::
@@ -44,14 +52,9 @@
 
   $ sudo apt-get install sox
 
-List of sox supported format.
-=============================
+List of sox supported format: See sox(1).
 
-See sox(1).
-
-List of ffmpeg supported format.
-================================
-::
+List of ffmpeg supported format::
 
   $ ffmpeg -formats