Minor updates

index.html

@@ -80,7 +80,7 @@ <h4>Goals</h4>
         <ul>
           <li>Find similarity among audio tracks (group by artist, mood, genre)</li>
           <li>Extract metadata from audio only</li>
-          <li>Song identification (i.e. Shazam)</li>
+          <li>Song identification</li>
           <li>Recommend music for purchasing, playlisting, and streaming radio</li>
           <li>Extract high-level musical information for transcription, compostion, and remixing/DJing</li>
           <li>Use techniques from DSP, Music Theory, Machine Learning, Acoustics, and Psychoacoustics</li>
@@ -256,11 +256,10 @@ <h3>
         </h3>
         <h4>Zero Crossing Rate</h4>
         <p>
-          Zero Crossing Rate (ZCR) is a measure of how many times the signal crosses the y axis. 
+          Zero Crossing Rate (ZCR) is a measure of how many times the signal crosses the x axis. 
         </p>
         <p>
-          It is
-          a crude estimator of pitch and harmonic content.
+          Crude estimator of pitch and harmonic content.
         </p>
         <p>
           A higher ZCR implies a higher pitch and/or 
@@ -541,14 +540,12 @@ <h4>Books</h4>
           <li>Signal Processing Methods for Music Transcription - Anssi Klapuri et al. (2006)</li>
           <li>Music and Probability - David Temperley (2010)</li>
           <li>Audio Content Analysis - Alexander Lerch (2012)</li>
+          <li>Music Data Mining - Tao Li et al. (2012)</li>
         </ul>
         <h4>Blogs</h4>
         <ul>
           <li>MusicMachinery.com - Paul Lamere's blog</li>
         </ul>
-        <p>
-          Special Thanks to Jay LeBoeuf and Steve Tjoa of iZotope for technical consultation.
-        </p>
       </article>
 
     </section>