function [] = get_Shimmer( dirName, statsFileID )

% this function collates the results of all values calculated using the PRAAT software 

% For jitter and shimmer PRAAT returns only a single value, not a
% frame-by-frame calculation. Therefore we cannot find the varience etc.


    % identify the speaker in the stats file
    fprintf( statsFileID, '%s ', dirName );

%-------------- get the shimmer metrics ----------------------
%     SHIMMER: local \t dda \t apq3 \t apq5 \t apq11

    metricName = '_shimmer_local';
    metricFileName = [ dirName metricName '.txt'];
    readValueFromFile( statsFileID, metricFileName, metricName );

    metricName = '_shimmer_dda';
    metricFileName = [ dirName metricName '.txt'];
    readValueFromFile( statsFileID, metricFileName, metricName );
    
    metricName = '_shimmer_apq3';
    metricFileName = [ dirName metricName '.txt'];
    readValueFromFile( statsFileID, metricFileName, metricName );
    
    metricName = '_shimmer_apq5';
    metricFileName = [ dirName metricName '.txt'];
    readValueFromFile( statsFileID, metricFileName, metricName );
    
    metricName = '_shimmer_apq11';
    metricFileName = [ dirName metricName '.txt'];
    readValueFromFile( statsFileID, metricFileName, metricName );
    
    fprintf( statsFileID, '\n');
    
    