X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=docs-mini%2FREADME.xmlsound;h=c8ed950cf2efc990aa805b042f66ac36f6930c1d;hb=f8c24745b6fe927c74c8ef4fe0442d43c335cc8b;hp=4b9632340eaf2774ed08bd852bc2cf034c4d9c06;hpb=1c513868b77b38bf90f83d4473f0a436da97fbb8;p=flightgear.git

diff --git a/docs-mini/README.xmlsound b/docs-mini/README.xmlsound
index 4b9632340..c8ed950cf 100644
--- a/docs-mini/README.xmlsound
+++ b/docs-mini/README.xmlsound
@@ -155,7 +155,17 @@ Configuration description:
  
      <property>
  	Defins which property supplies the value for the calculation.
+	Either a <property> or an <internal> should be defined.
  	The value is treatened as a floating point number.
+
+     <internal>
+	Defins which internal variable should be used for the calculation.
+	The value is treatened as a floating point number.
+	The following internals are available at this time:
+
+	dt_play:	the number of seconds since the sound started playing.
+
+	dt_stop:	the number of seconds after the sound has stopped.
  
      <type>
 	Defines the function that should be used upon the property