minor prose improvement.

Author: danielweck

css3-speech/Overview.html

@@ -2177,20 +2177,23 @@ <h2 id=voice-char-props><span class=secno>9. </span>Voice characteristic
 
    <dt><strong>none</strong>
 
-   <dd>Inhibits the synthesizer from emphasizing words it would normally
+   <dd>Prevents the synthesizer from emphasizing text it would normally
     emphasize.
 
    <dt><strong>moderate</strong> and <strong>strong</strong>
 
-   <dd>These values are monotonically non-decreasing in strength.
+   <dd>These values are monotonically non-decreasing in strength. Their
+    application results in more emphasis than what the speech synthesizer
+    would normally produce (i.e. more than the value corresponding to
+    &lsquo;<code class=property>auto</code>&rsquo;).
 
    <dt><strong>reduced</strong>
 
    <dd>Effectively the opposite of emphasizing a word.
   </dl>
 
   <div class=example>
-   <p>Example:</p>
+   <p>Examples:</p>
 
    <pre>
 span.default-emphasis { voice-stress: auto; }

css3-speech/Overview.src.html

@@ -1889,20 +1889,22 @@ <h2 id="voice-char-props"><span class="secno">9. </span>Voice
 <dd>Represents the default emphasis produced by the speech synthesizer.</dd>
 
 <dt><strong>none</strong></dt>
-<dd>Inhibits the synthesizer from emphasizing
-words it would normally emphasize.</dd>
+<dd>Prevents the synthesizer from emphasizing
+text it would normally emphasize.</dd>
 
 <dt><strong>moderate</strong> and
 <strong>strong</strong></dt>
 <dd>These values are monotonically non-decreasing in strength.
+Their application results in more emphasis than what the 
+speech synthesizer would normally produce (i.e. more than the value corresponding to 'auto').
 </dd>
 
 <dt><strong>reduced</strong></dt>
 <dd>Effectively the opposite of emphasizing a word.</dd>
 </dl>
 
 <div class="example">
-<p>Example:</p>
+<p>Examples:</p>
 <pre>
 span.default-emphasis { voice-stress: auto; }
 span.lowered-emphasis { voice-stress: reduced; }