Add Richard Mann prof talk + EOT

events.xml

@@ -5,6 +5,43 @@
 
 <!-- Spring 2016 -->
 
+<eventitem date="2016-07-25" time="6:00 pm" room="MC Comfy Lounge"
+           title="Richard Mann Prof Talk and EOT">
+  <short>
+    <p>
+	Join us on Monday, July 25th at 6pm in the MC Comfy Lounge for an 
+	exciting prof talk by Richard Mann on Open Source Computer Sound 
+	Measurement. The abstract for the talk is below. We will follow 
+	this up by an EOT event with dinner and board games! 
+	Last event of the term, get hype.
+    </p>
+  </short>
+  <abstract>
+    <p>
+An ideal computer audio system should faithfully reproduce signals of
+all frequencies in the audible range (20 to 20,000 cycles per second).
+Real systems, particularly mobile devices and laptops, may still
+produce acceptable quality, but often have a limited response,
+particularly at the low (bass) frequencies.
+
+Sound/acousic energy refers to time varying pressure waves in air.
+When recording sound, the acoustic signal will be picked up by
+microphone, which converts it to electrical signals (voltages).  The
+signal is then digitized (analog to digital conversion) and stored as
+a stream of numbers in a data file.  On playback the digital signal is
+converted to an electrical signal (digital to analog conversion) and
+finally returned as an acoustic signal by a speaker and/or headphones.
+
+In this talk I will present open source software (Octave/Linux) to
+measure the end-to-end frequency response of an audio system using the
+Discrete Fourier Transform.  I will demonstrate the software using a
+standard USB audio interface and a consumer grade omnidirectional
+microphone.
+
+This is joint work with John Vanderkooy, Distinguished Professor
+Emeritus, Department of Physics and Astronomy.
+    </p>
+   </abstract>
 <eventitem date="2016-07-21" time="6:00 pm" room="MC 4045"
            title="Notorious CS452">
   <short>