Started implementing the program in JAVA. Need to research Goertzel Implementation in Java. Need to continue testing in MATLAB to achieve a higher accuracy

Author: tino1b2be

.classpath

@@ -1,7 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="src" path="source"/>
 	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.7"/>
 	<classpathentry kind="lib" path="lib/MusicG/musicg-1.4.2.0.jar"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.junit.JUNIT_CONTAINER/4"/>
 	<classpathentry kind="output" path="bin"/>
 </classpath>

Documentation/.~lock.DTMF Decoder.odt#

@@ -1 +1 @@
-,tino1b2be,insurrection,10.12.2015 18:37,file:///home/tino1b2be/.config/libreoffice/4;
+,tino1b2be,insurrection,14.12.2015 22:27,file:///home/tino1b2be/.config/libreoffice/4;

Documentation/DTMF Decoder.odt

@@ -78,7 +78,7 @@
 
     for j = 1 : size(dft_data,2) % for each decoded frame
         %get index of highest DTMF high and low frequencies
-        if (mean(dft_data(:,j)) < (0.60 * topAvg))
+        if (mean(dft_data(:,j)) < (0.61 * topAvg))
             rawKeys(j) = '_';
 
         else

Prototyping/generateTestData.m~

@@ -53,9 +53,9 @@
 %         frameSize = 512;
 %     end
 
-    frameSize = 360;
+    frameSize = 370;
 
-    if (length(data) < 512)
+    if (length(data) < frameSize)
         frameSize = length(data);
         numFrames = 1;
     else

Prototyping/getRawKeys.m

@@ -53,23 +53,21 @@ function frames = makeFrames (data, Fs)
 %         frameSize = 512;
 %     end
 
-    frameSize = 360;
+    frameSize = 370;
 
-    if (length(data) < 512)
+    if (length(data) < 370)
         frameSize = length(data);
         numFrames = 1;
     else
-        numFrames = floor(length(data)/frameSize)*3 - 2;
+        numFrames = floor(length(data)/frameSize)*2 - 1;
     end
 
-    
-    
     % must preallocate memory for the output
     frames = zeros(frameSize,numFrames);   % number of frames (columns)
     %frames(:,1) = data(1:frameSize);                         % slice off the first frame
 
     col = 1;
-    for i= 1 : floor(frameSize/3) : length(data)
+    for i= 1 : floor(frameSize/2) : length(data)
         new =  data(i:i+frameSize-1);
         frames(:,col) = new;
         if (col == numFrames) % break when all the frames have been created