habilita null sink

mpd.conf

@@ -298,17 +298,17 @@ input {
 #
 ## An example of a null output (for no audio output):
 #
-#audio_output {
-#	type		"null"
-#	name		"My Null Output"
+audio_output {
+	type		"null"
+	name		"My Null Output"
 #	mixer_type      "none"			# optional
-#}
+}
 #
 # This setting will change all decoded audio to be converted to the specified
 # format before being passed to the audio outputs. By default, this setting is
 # disabled.
 #
-#audio_output_format		"44100:16:2"
+audio_output_format		"44100:16:2"
 #
 # If MPD has been compiled with libsamplerate support, this setting specifies 
 # the sample rate converter to use.  Possible values can be found in the