Dawn@4: function [] = get_Pitch( dirName, statsFileID )
Dawn@4: 
Dawn@4: DEBUG=0;
Dawn@4: % this function collates the results of all HNR values
Dawn@4: 
Dawn@4: % identify the speaker in the stats file
Dawn@4: fprintf( statsFileID, '%s ', dirName );
Dawn@4: 
Dawn@4: metricName = '_YIN_pitch';
Dawn@4: metricFileName = [ dirName metricName '.txt'];
Dawn@4: [ metrics, nanValues ] = readValuesFromFile( statsFileID, metricFileName, metricName );
Dawn@4: 
Dawn@4: %---------------- GET THE VOICED FRAME VALUES -------------------
Dawn@4: 
Dawn@4: % only wish to consider values from voiced frames.
Dawn@4: 
Dawn@4: % going to disregard all unvoiced frames as these produce outliers
Dawn@4: [vuv] = detect_VoicedUnvoiced( [ dirName '.wav' ], 0 );
Dawn@4: % if vuv is longer than the pitch array, truncate.
Dawn@4: if( length(vuv) ~= length(nanValues) )
Dawn@4:     if( (length(vuv) - length(nanValues)) > 1 )
Dawn@4:         disp('EEEK!');
Dawn@4:     end
Dawn@4:     if( length(vuv) > length(nanValues) )
Dawn@4:         %increase metrics
Dawn@4:         nanValues = [ nanValues; 0 ];
Dawn@4:     else
Dawn@4:         vuv = [vuv; 0];
Dawn@4:     end
Dawn@4: end
Dawn@4: 
Dawn@4: 
Dawn@4: % remove any NaN pitch values from the voicing information
Dawn@4: i=1;
Dawn@4: while( i <= length(vuv) )
Dawn@4: 
Dawn@4:     if( nanValues(i) == 1 )
Dawn@4:         if( i == 1 )
Dawn@4:             vuv = vuv(2:length(vuv));
Dawn@4:             nanValues = nanValues(2:length(nanValues));
Dawn@4:         elseif(i == length(vuv) )
Dawn@4:             vuv = vuv(1:length(vuv)-1);
Dawn@4:             nanValues = nanValues(1:length(nanValues)-1);
Dawn@4:         else
Dawn@4:             vuv = [ vuv(1: i-1); vuv(i+1:end) ];
Dawn@4:             nanValues = [ nanValues(1: i-1); nanValues(i+1:end) ];
Dawn@4:         end
Dawn@4:     else
Dawn@4:         i=i+1;
Dawn@4:     end
Dawn@4:     
Dawn@4: end
Dawn@4:     
Dawn@4: % remove the non-voiced frames (includes unvoiced and silent frames) from the metrics
Dawn@4: 
Dawn@4: voicedFrames = find( vuv == 1 );
Dawn@4: metrics = metrics( voicedFrames );
Dawn@4: 
Dawn@4: 
Dawn@4: if(DEBUG)
Dawn@4:     subplot(211);hold on;
Dawn@4:     if( strfind( dirName, 'neg') ) 
Dawn@4:         plot(metrics,'b');
Dawn@4:     elseif( strfind( dirName, 'pos') ) 
Dawn@4:         plot(metrics,'r');
Dawn@4:     end
Dawn@4: end
Dawn@4: 
Dawn@4: % get basic metric set
Dawn@4: [ metricSet ] = basicMetricSet( metrics, statsFileID );
Dawn@4: 
Dawn@4: if(DEBUG)
Dawn@4:     subplot(212); 
Dawn@4:     if( strfind( dirName, 'neg') )
Dawn@4:         plot(metrics, 'xb'); hold on;
Dawn@4:     elseif( strfind( dirName, 'pos') )
Dawn@4:         plot(metrics, 'xr'); hold on;
Dawn@4:     end
Dawn@4: end
Dawn@4: 
Dawn@4: 
Dawn@4: % get basic metric set for the first derivative
Dawn@4: firstDerivative = gradient( metrics );
Dawn@4: [ firstDerivativeMetricSet ] = basicMetricSet( firstDerivative, statsFileID );
Dawn@4: 
Dawn@4: % get basic metric set for the second derivative
Dawn@4: secondDerivative = gradient( firstDerivative );
Dawn@4: [ secondDerivativeMetricSet ] = basicMetricSet( secondDerivative, statsFileID );
Dawn@4: 
Dawn@4: fprintf( statsFileID, '\n');