--- a/webaudio/specification.html Wed Nov 14 12:56:06 2012 -0800
+++ b/webaudio/specification.html Wed Nov 14 13:16:57 2012 -0800
@@ -2604,7 +2604,13 @@
<dt id="dfn-setOrientation_2">The <code>setOrientation</code> method</dt>
<dd><p>Describes which direction the listener is pointing in the 3D
cartesian coordinate space. Both a <b>front</b> vector and an <b>up</b>
- vector are provided.</p>
+ vector are provided. In simple human terms, the <b>front</b> vector represents which
+ direction the person's nose is pointing. The <b>up</b> vector represents the
+ direction the top of a person's head is pointing. These values are expected to
+ be linearly independent (at right angles to each other). For normative requirements
+ of how these values are to be interpreted, see the
+ <a href="#Spatialization-section">spatialization section</a>.
+ </p>
<p>The <dfn id="dfn-x_setOrientation">x, y, z</dfn> parameters represent
a <b>front</b> direction vector in 3D space, with the default value being (0,0,-1) </p>
<p>The <dfn id="dfn-x_setOrientation_2">xUp, yUp, zUp</dfn> parameters