diff Code/Test/checkVUV.m @ 0:ea0c737c6323

first commit

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Code/Test/checkVUV.m	Thu Jul 26 14:46:25 2012 +0100
@@ -0,0 +1,109 @@
+function [] = checkVUV()
+
+sampleName = '01_a_male01_pos';
+[x, fs, frameLength, noOfFrames] = openFile( [sampleName '.wav'] );
+y = buffer( x, frameLength );
+
+ %---------------- GET THE SILENT FRAME VALUES -------------------
+    
+% only wish to consider pitch values from voiced frames.
+% silent and unvoiced frames will produce pitch values that
+% are random and therefore will bias our results
+segmentFrames = getSilenceDecision( sampleName );
+[ silentFrames ] = removeSilentData( segmentFrames, noOfFrames );
+    
+
+% % open original annotation file
+% fileName = [sampleName '.txt'];
+% % read metrics from file
+% fileID = fopen( fileName );
+% data = fscanf( fileID, '%d', inf );
+% annotatedPitch = data(3:4:end);
+% fclose( fileID );
+
+% open HNR file
+fileName = [sampleName '_HNR.txt'];
+% read metrics from file
+fileID = fopen( fileName );
+data = fscanf( fileID, '%f', inf );
+harmonic2noise = data(2:2:end);
+fclose( fileID );
+
+largestH2NValue = max( [max(harmonic2noise) abs(min(harmonic2noise))] );
+%normalise
+harmonic2noise = harmonic2noise/largestH2NValue;
+%round to 1dp
+harmonic2noise= (round(harmonic2noise*10))/10;
+
+% open audio power file
+fileName = [sampleName '_AP.txt'];
+% read metrics from file
+fileID = fopen( fileName );
+data = fscanf( fileID, '%f', inf );
+audioPower = data(2:2:end);
+fclose( fileID );
+maxPower = max(audioPower);
+
+
+minFreq = ceil(fs/getVariables('getMinFreq')); %default minimum fundatmental frequency
+maxFreq = ceil(fs/getVariables('getMaxFreq')); %default maximum fundamental frequency
+    
+% open pitch file
+fileName = [sampleName '_YIN_pitch.txt'];
+% read metrics from file
+fileID = fopen( fileName );
+data = fscanf( fileID, '%f', inf );
+pitch = data(2:2:end);
+fclose( fileID );
+
+% open band power file
+% fileName = [sampleName '_ASBP_norm.txt'];
+% % read metrics from file
+% fileID = fopen( fileName );
+% data = fscanf( fileID, '%f', inf );
+% bandPowerRatio = data(2:2:end);
+% fclose( fileID );
+% bandPowerRatioRMS =   sqrt( mean(( bandPowerRatio/max(bandPowerRatio) ).^2 ));
+% 
+
+
+HNRThresh = 0;
+hold off; 
+minLength = min([length(harmonic2noise) length(audioPower) length(pitch)]);
+plotUnits = 1/frameLength;
+for( i=1:minLength )
+
+
+     if( silentFrames(i) == 0 ) % harmonic2noise(i) == 0 )
+         %silent
+%         plot( ((i-1)*frameLength)+1:(i*frameLength), y(:,i), 'y' );hold on; 
+        plot( i-0.5 + plotUnits : plotUnits : i+0.5, y(:,i), 'y' );hold on; 
+        vuv(i) = 0;
+     elseif( ((harmonic2noise(i) <= HNRThresh))... %|| (bandPowerRatio(i)/max(bandPowerRatio) < 0.001)) ...
+            || (pitch(i) > minFreq) ...
+            || (pitch(i) < maxFreq)) %...
+%             || (audioPower(i)/maxPower < 0.0005))
+        % unvoiced
+%         plot( ((i-1)*frameLength)+1:(i*frameLength), y(:,i), 'r' );hold on;
+        plot( i-0.5 + plotUnits : plotUnits : i+0.5, y(:,i), 'r' );hold on;
+        vuv(i) = 2;
+     else
+         %voiced
+%         plot( ((i-1)*frameLength)+1:(i*frameLength), y(:,i), 'g' );hold on;
+        plot( i-0.5 + plotUnits : plotUnits : i+0.5, y(:,i), 'g' );hold on;
+        vuv(i) = 1;
+    end
+end
+
+    
+% plot( 1 : 1 : length(harmonic2noise), harmonic2noise, 'b' );hold on;
+% plot( 1 : 1 : length(pitch), pitch/max(pitch), 'w' );hold on;
+% % pitch thresholds
+% L=line([0 noOfFrames], [maxFreq/max(pitch) maxFreq/max(pitch)]);
+% set(L,'color',[1 0 0]);
+% L=line([0 noOfFrames], [minFreq/max(pitch) minFreq/max(pitch)]);
+% set(L,'color',[1 0 0]);
+% 
+% %HNR threshold
+% L=line([0 noOfFrames], [HNRThresh HNRThresh]);
+% set(L, 'color', [0 0 1] );