[css2] Added sentence to explain that 'leftwards' actually means

bert-github · bert-github · commit e34c93626371 · 1998-01-26T18:34:42.000Z
'counter-clockwise'.

--HG--
extra : convert_revision : svn%3A73dc7c4b-06e6-40f3-b4f7-9ed1dbc14bfc/trunk%40697
diff --git a/css2/aural.src b/css2/aural.src
@@ -1,6 +1,6 @@
 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
 <html lang="en">
-<!-- $Id: aural.src,v 1.15 1998-01-20 23:20:13 ijacobs Exp $ -->
+<!-- $Id: aural.src,v 1.16 1998-01-26 18:34:42 bbos Exp $ -->
 <HEAD>
 <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
 <TITLE>Aural style sheets</TITLE>
@@ -346,9 +346,14 @@ be specified using absolute keywords:
 </table></div>
 
 <p>or relative keywords. The value <tt>leftwards</tt> moves the sound
-more to the left (subtracts 20 degrees) while the value
+more to the left (more precisely: subtracts 20 degrees) while the value
 <tt>rightwards</tt> moves the sound more to the right (adds 20
-degrees). Arithmetic is carried out modulo 360 degrees.
+degrees). Arithmetic is carried out modulo 360 degrees. Note that
+'leftwards' is more accurately described as "turned
+counter-clockwise," since it <em>always</em> subtracts 20 degrees,
+even if the inherited azimuth is already behind the listener (in which
+case the sound actually appears to move to the right). 'Rightwards' is
+analogous.
 
 <p>This property is most likely to be implemented by mixing the same
 signal into different channels at differing volumes.  It might also
