diff --git a/include/preferences.html b/include/preferences.html
index 2ffcb2db..f410b08b 100644
--- a/include/preferences.html
+++ b/include/preferences.html
@@ -1789,9 +1789,9 @@
     <dfn>DSP CPU Utilization</dfn>
     <ul>
       <li>
-        <dfn>Signal processing uses:</dfn> sets how many cpu processors can be
-          used to do signal processing. It can be set to use one up to all
-          processors.
+        <dfn>Signal processing uses:</dfn> sets an upper limit on how many CPU 
+        cores or processors can be used to signal processing. By default Ardour uses
+        all but one (leaving one core for the GUI, and other tasks).
       </li>
       <li>
         <dfn>Power Management, CPU DMA latency: </dfn> modern processors try
diff --git a/include/status-bar.html b/include/status-bar.html
index 133ce7e9..effdac6b 100644
--- a/include/status-bar.html
+++ b/include/status-bar.html
@@ -19,7 +19,7 @@
 	<tr><th>Timecode Format:</th><td>is the timecode, i.e. the number of frames per second used by the session (for videos)</td></tr>
 	<tr><th>Audio:</th><td>gives the sample rate used in the session, and the latency computed from the buffer size</td></tr>
 	<tr><th>Disk Space:</th><td>reports the remaining hard disk space as the time that can be recorded with the current session setting</td></tr>
-	<tr><th>DSP:</th><td>for <em>D</em>igital <em>S</em>ound <em>P</em>rocessing, shows how much of the CPU is used by Ardour and its plugins</td></tr>
+	<tr><th>DSP:</th><td>for <em>D</em>igital <em>S</em>ound <em>P</em>rocessing, shows worst case system load used by Ardour and plugins for realtime processing. The value is the percentage of <em>time used to process</em>over<em>time available to process</em>.</td></tr>
 	<tr><th>Wall Clock</th><td>showing the system time (especially useful in full screen mode)</td></tr>	
 	<tr><th>Log button</th><td>that indicates if Ardour has encountered any warning or error.</td></tr>
 </table>